收藏---很實用到類 （防止sql注入,字符串操作等。。。。。。。。。）
1 using System;
2 using System.Collections.Generic;
3 using System.Text;
4 using System.Collections;
5 using System.Text.RegularExpressions;
6 using System.Security.Cryptography;
7 /**/
8 ////////////////////////////////////////////////////
9 ///功能：字符文本操作类
10 ///
11 ///
12 ////////////////////////////////////////////////////
13 namespace XHW
14 {
15 /// <summary>
16 /// 字符文本操作类
17 /// </summary>
18 public class StringHelper
19 {
20 public static bool IsContains(string[] strs, string value)
21 {
22 if (strs == null)
23 {
24 return false;
25 }
26
27 foreach (string str in strs)
28 {
29 if (str == value)
30 {
31 return true;
32 }
33 }
34
35 return false;
36 }
37
38
39
40 #region 字符串过滤
41
42 #region 对字符串进行HTML编码，针对(input,Textarea)输入时过滤脚本及HTML编码
43 /**/
44 /// <summary>
45 /// 对字符串进行HTML编码，针对(input,Textarea)输入时过滤脚本及HTML编码
46 /// </summary>
47 /// <param name="source"></param>
48 /// <returns></returns>
49 #endregion
50 public static string EncodeToHtml(string source)
51 {
52 source = source.Trim();
53 source = source.Replace("'", "''");
54 source = source.Replace("\\", "＼");
55 source = System.Web.HttpContext.Current.Server.HtmlEncode(source);
56 source = source.Replace("\r\n", "<br>");
57 source = source.Replace("\n", "<br>");
58 return source;
59 }
60
61
62 #region [否决的]对字符串进行HTML编码，针对(input,Textarea)输入时过滤脚本及HTML编码
63 /**/
64 /// <summary>
65 /// [否决的]对字符串进行HTML编码，针对(input,Textarea)输入时过滤脚本及HTML编码 (不符合命名规范，请使用 EncodeToHtml 方法 )
66 /// </summary>
67 /// <param name="source"></param>
68 /// <returns></returns>
69 #endregion
70 public static string HtmlFilterForInput(string source)
71 {
72 return EncodeToHtml(source);
73 }
74
75
76 #region 还原HTML编码为字符串,还原HTML编码为字符串，用于返回到input或 Textarea 输入框
77 /**/
78 /// <summary>
79 /// 还原HTML编码为字符串，用于返回到input或 Textarea 输入框
80 /// </summary>
81 /// <param name="source"></param>
82 /// <returns></returns>
83 #endregion
84 public static string DecodeFormHtml(string source)
85 {
86 source = source.Trim();
87 source = source.Replace("<br>", "\r\n");
88 source = source.Replace("<br>", "\n");
89 source = System.Web.HttpContext.Current.Server.HtmlDecode(source);
90 return source;
91 }
92
93
94 #region [否决的]还原HTML编码为字符串,还原HTML编码为字符串，用于返回到input或 Textarea 输入框
95 /**/
96 /// <summary>
97 /// [否决的]还原HTML编码为字符串，用于返回到input或 Textarea 输入框 (不符合命名规范，请使用 DecodeFormHtml 方法 )
98 /// </summary>
99 /// <param name="source"></param>
100 /// <returns></returns>
101 #endregion
102 public static string DeHtmlFilterForInput(string source)
103 {
104 source = source.Trim();
105 source = source.Replace("<br>", "\r\n");
106 source = source.Replace("<br>", "\n");
107 source = System.Web.HttpContext.Current.Server.HtmlDecode(source);
108 return source;
109 }
110
111
112 #region 检验用户提交的URL参数字符里面是否有非法字符
113 /**/
114 /// <summary>
115 /// 检验用户提交的URL参数字符里面是否有非法字符,如果有则返回True.防止SQL注入.
116 /// </summary>
117 /// <param name="str">(string)</param>
118 /// <returns>bool</returns>
119 public static bool VerifyString(string str)
120 {
121 string strTmp = str.ToUpper();
122 if (strTmp.IndexOf("SELECT ") >= 0 || strTmp.IndexOf(" AND ") >= 0 || strTmp.IndexOf(" OR ") >= 0 ||
123 strTmp.IndexOf("EXEC ") >= 0 || strTmp.IndexOf("CHAR(") >= 0)
124 {
125 return true;
126 }
127
128 strTmp.Replace("'", "＇").Replace(";", "；");
129 return false;
130 }
131
132 #endregion
133
134
135 #region 过滤 Sql 语句字符串中的注入脚本
136 /**/
137 /// <summary>
138 /// 过滤 Sql 语句字符串中的注入脚本
139 /// </summary>
140 /// <param name="source">传入的字符串</param>
141 /// <returns></returns>
142 #endregion
143 public static string FilterSql(string source)
144 {
145 //单引号替换成两个单引号
146 source = source.Replace("'", "''");
147 source = source.Replace("\"", "“");
148 source = source.Replace("|", "｜");
149 //半角封号替换为全角封号，防止多语句执行
150 source = source.Replace(";", "；");
151
152 //半角括号替换为全角括号
153 source = source.Replace("(", "（");
154 source = source.Replace(")", "）");
155
156 /**/
157 ///////////////要用正则表达式替换，防止字母大小写得情况////////////////////
158
159 //去除执行存储过程的命令关键字
160 source = source.Replace("Exec", "");
161 source = source.Replace("Execute", "");
162
163 //去除系统存储过程或扩展存储过程关键字
164 source = source.Replace("xp_", "x p_");
165 source = source.Replace("sp_", "s p_");
166
167 //防止16进制注入
168 source = source.Replace("0x", "0 x");
169
170 return source;
171 }
172
173
174 #region [否决的]过滤 Sql 语句字符串中的注入脚本
175 /**/
176 /// <summary>
177 /// [否决的]过滤 Sql 语句字符串中的注入脚本(请使用 FilterSql 方法 )
178 /// </summary>
179 /// <param name="source">传入的字符串</param>
180 /// <returns></returns>
181 #endregion
182 public static string SqlFilter(string source)
183 {
184 return FilterSql(source);
185 }
186
187
188 #region 过滤字符串只剩数字
189 /**/
190 /// <summary>
191 /// 过滤字符串只剩数字
192 /// </summary>
193 /// <param name="source">源字符串</param>
194 #endregion
195 public static string FilterToNumber(string source)
196 {
197 source = Regex.Replace(source, "[^0-9]*", "", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
198 return source;
199 }
200
201
202 #region [否决的]过滤字符串只剩数字
203 /**/
204 /// <summary>
205 /// [否决的]过滤字符串只剩数字(请使用 FilterToNumber 方法)
206 /// </summary>
207 /// <param name="source">源字符串</param>
208 #endregion
209 public static string NumberFilter(string source)
210 {
211 source = Regex.Replace(source, "[^0-9]*", "", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
212 return source;
213 }
214
215
216 #region 去除数组内重复元素
217 /**/
218 /// <summary>
219 /// 去除数组内重复元素
220 /// </summary>
221 /// <param name="arr"></param>
222 /// <returns></returns>
223 #endregion
224 public ArrayList FilterRepeatArrayItem(ArrayList arr)
225 {
226 //建立新数组
227 ArrayList newArr = new ArrayList();
228
229 //载入第一个原数组元素
230 if (arr.Count > 0)
231 {
232 newArr.Add(arr[0]);
233 }
234
235 //循环比较
236 for (int i = 0; i < arr.Count; i++)
237 {
238 if (!newArr.Contains(arr[i]))
239 {
240 newArr.Add(arr[i]);
241 }
242 }
243 return newArr;
244 }
245
246
247 #region 在最后去除指定的字符
248 /**/
249 /// <summary>
250 /// 在最后去除指定的字符
251 /// </summary>
252 /// <param name="source">参加处理的字符</param>
253 /// <param name="cutString">要去除的字符</param>
254 /// <returns>返回结果</returns>
255 #endregion
256 public static string CutLastString(string source, string cutString)
257 {
258 string result = "";
259 int tempIndex = 0;
260
261 tempIndex = source.LastIndexOf(cutString);
262 if (cutString.Length == (source.Length - tempIndex))
263 {
264 result = source.Substring(0, tempIndex);
265 }
266 else
267 {
268 result = source;
269 }
270
271 return result;
272 }
273
274
275 #region 利用正则表达式实现UBB代码转换为html代码
276 /**/
277 /// <summary>
278 /// 利用正则表达式实现UBB代码转换为html代码
279 /// </summary>
280 /// <param name="source">待处理的文本内容</param>
281 /// <returns>返回正确的html代码</returns>
282 #endregion
283 public static string UBBCode(string source)
284 {
285 if (source == null || source.Length == 0)
286 {
287 return "";
288 }
289
290 source = source.Replace(" ", " ");
291 //source=source.Replace("<","<");
292 //source=source.Replace(">",">");
293 source = source.Replace("\n", "<br>");
294 source = Regex.Replace(source, @"\[url=(?<x>[^\]]*)\](?<y>[^\]]*)\[/url\]", @"<a href=$1 target=_blank>$2</a>", RegexOptions.IgnoreCase);
295 source = Regex.Replace(source, @"\[url\](?<x>[^\]]*)\[/url\]", @"<a href=$1 target=_blank>$1</a>", RegexOptions.IgnoreCase);
296 source = Regex.Replace(source, @"\[email=(?<x>[^\]]*)\](?<y>[^\]]*)\[/email\]", @"<a href=$1>$2</a>", RegexOptions.IgnoreCase);
297 source = Regex.Replace(source, @"\[email\](?<x>[^\]]*)\[/email\]", @"<a href=$1>$1</a>", RegexOptions.IgnoreCase);
298 source = Regex.Replace(source, @"\[flash](?<x>[^\]]*)\[/flash]", @"<OBJECT codeBase=http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=4,0,2,0 classid=clsid:D27CDB6E-AE6D-11cf-96B8-444553540000 width=500 height=400><PARAM NAME=movie VALUE=""$1""><PARAM NAME=quality VALUE=high><embed src=""$1"" quality=high pluginspage='http://www.macromedia.com/shockwave/download/index.cgi?P1_Prod_Version=ShockwaveFlash' type='application/x-shockwave-flash' width=500 height=400>$1</embed></OBJECT>", RegexOptions.IgnoreCase);
299 source = Regex.Replace(source, @"\", @"<IMG src=""$1"" border=0>", RegexOptions.IgnoreCase);
300 source = Regex.Replace(source, @"\[color=(?<x>[^\]]*)\](?<y>[^\]]*)\[/color\]", @"<font color=$1>$2</font>", RegexOptions.IgnoreCase);
301 source = Regex.Replace(source, @"\[face=(?<x>[^\]]*)\](?<y>[^\]]*)\[/face\]", @"<font face=$1>$2</font>", RegexOptions.IgnoreCase);
302 source = Regex.Replace(source, @"\[size=1\](?<x>[^\]]*)\[/size\]", @"<font size=1>$1</font>", RegexOptions.IgnoreCase);
303 source = Regex.Replace(source, @"\[size=2\](?<x>[^\]]*)\[/size\]", @"<font size=2>$1</font>", RegexOptions.IgnoreCase);
304 source = Regex.Replace(source, @"\[size=3\](?<x>[^\]]*)\[/size\]", @"<font size=3>$1</font>", RegexOptions.IgnoreCase);
305 source = Regex.Replace(source, @"\[size=4\](?<x>[^\]]*)\[/size\]", @"<font size=4>$1</font>", RegexOptions.IgnoreCase);
306 source = Regex.Replace(source, @"\[size=5\](?<x>[^\]]*)\[/size\]", @"<font size=5>$1</font>", RegexOptions.IgnoreCase);
307 source = Regex.Replace(source, @"\[size=6\](?<x>[^\]]*)\[/size\]", @"<font size=6>$1</font>", RegexOptions.IgnoreCase);
308 source = Regex.Replace(source, @"\[align=(?<x>[^\]]*)\](?<y>[^\]]*)\[/align\]", @"<align=$1>$2</align>", RegexOptions.IgnoreCase);
309 source = Regex.Replace(source, @"\[fly](?<x>[^\]]*)\[/fly]", @"<marquee width=90% behavior=alternate scrollamount=3>$1</marquee>", RegexOptions.IgnoreCase);
310 source = Regex.Replace(source, @"\[move](?<x>[^\]]*)\[/move]", @"<marquee scrollamount=3>$1</marquee>", RegexOptions.IgnoreCase);
311 source = Regex.Replace(source, @"\[glow=(?<x>[^\]]*),(?<y>[^\]]*),(?<z>[^\]]*)\](?<w>[^\]]*)\[/glow\]", @"<table width=$1 style='filter:glow(color=$2, strength=$3)'>$4</table>", RegexOptions.IgnoreCase);
312 source = Regex.Replace(source, @"\[shadow=(?<x>[^\]]*),(?<y>[^\]]*),(?<z>[^\]]*)\](?<w>[^\]]*)\[/shadow\]", @"<table width=$1 style='filter:shadow(color=$2, strength=$3)'>$4</table>", RegexOptions.IgnoreCase);
313 source = Regex.Replace(source, @"\[center\](?<x>[^\]]*)\[/center\]", @"<center>$1</center>", RegexOptions.IgnoreCase);
314 source = Regex.Replace(source, @"\[b\](?<x>[^\]]*)\[/b\]", @"<b>$1</b>", RegexOptions.IgnoreCase);
315 source = Regex.Replace(source, @"\[i\](?<x>[^\]]*)\[/i\]", @"<i>$1</i>", RegexOptions.IgnoreCase);
316 source = Regex.Replace(source, @"\[u\](?<x>[^\]]*)\[/u\]", @"<u>$1</u>", RegexOptions.IgnoreCase);
317 source = Regex.Replace(source, @"\[code\](?<x>[^\]]*)\[/code\]", @"<pre id=code><font size=1 face='Verdana, Arial' id=code>$1</font id=code></pre id=code>", RegexOptions.IgnoreCase);
318 source = Regex.Replace(source, @"\[list\](?<x>[^\]]*)\[/list\]", @"<ul>$1</ul>", RegexOptions.IgnoreCase);
319 source = Regex.Replace(source, @"\[list=1\](?<x>[^\]]*)\[/list\]", @"<ol type=1>$1</ol id=1>", RegexOptions.IgnoreCase);
320 source = Regex.Replace(source, @"\[list=a\](?<x>[^\]]*)\[/list\]", @"<ol type=a>$1</ol id=a>", RegexOptions.IgnoreCase);
321 source = Regex.Replace(source, @"\[\*\](?<x>[^\]]*)\[/\*\]", @"<li>$1</li>", RegexOptions.IgnoreCase);
322 source = Regex.Replace(source, @"\[quote](?<x>.*)\[/quote]", @"<center>—— 以下是引用 ——<table border='1' width='80%' cellpadding='10' cellspacing='0' ><tr><td>$1</td></tr></table></center>", RegexOptions.IgnoreCase);
323 source = Regex.Replace(source, @"\[QT=*([0-9]*),*([0-9]*)\](.[^\[]*)\[\/QT]", @"<embed src=$3 width=$1 height=$2 autoplay=true loop=false controller=true playeveryframe=false cache=false scale=TOFIT bgcolor=#000000 kioskmode=false targetcache=false pluginspage=http://www.apple.com/quicktime/>", RegexOptions.IgnoreCase);
324 source = Regex.Replace(source, @"\[MP=*([0-9]*),*([0-9]*)\](.[^\[]*)\[\/MP]", @"<object align=center classid=CLSID:22d6f312-b0f6-11d0-94ab-0080c74c7e95 class=OBJECT id=MediaPlayer width=$1 height=$2 ><param name=ShowStatusBar value=-1><param name=Filename value=$3><embed type=application/x-oleobject codebase=http://activex.microsoft.com/activex/controls/mplayer/en/nsmp2inf.cab#Version=5,1,52,701 flename=mp src=$3 width=$1 height=$2></embed></object>", RegexOptions.IgnoreCase);
325 source = Regex.Replace(source, @"\[RM=*([0-9]*),*([0-9]*)\](.[^\[]*)\[\/RM]", @"<OBJECT classid=clsid:CFCDAA03-8BE4-11cf-B84B-0020AFBBCCFA class=OBJECT id=RAOCX width=$1 height=$2><PARAM NAME=SRC VALUE=$3><PARAM NAME=CONSOLE VALUE=Clip1><PARAM NAME=CONTROLS VALUE=imagewindow><PARAM NAME=AUTOSTART VALUE=true></OBJECT><br><OBJECT classid=CLSID:CFCDAA03-8BE4-11CF-B84B-0020AFBBCCFA height=32 id=video2 width=$1><PARAM NAME=SRC VALUE=$3><PARAM NAME=AUTOSTART VALUE=-1><PARAM NAME=CONTROLS VALUE=controlpanel><PARAM NAME=CONSOLE VALUE=Clip1></OBJECT>", RegexOptions.IgnoreCase);
326 return (source);
327 }
328
329
330 #region 整理(过滤)以英文逗号分割的字符串
331 /**/
332 /// <summary>
333 /// 整理(过滤)以英文逗号分割的字符串
334 /// </summary>
335 /// <param name="source">原字符串</param>
336 /// <param name="str2">待清除的字符串，如空格</param>
337 /// <returns></returns>
338 #endregion
339 public static string FilterStringArray(string source, string str2)
340 {
341 source = source.Replace(str2, "");
342 if (source != "")
343 {
344 source = source.Replace(",,", ",");
345
346 if (source[0].ToString() == ",")
347 {
348 source = source.Substring(1, source.Length - 1);
349 }
350
351 if (source[source.Length - 1].ToString() == ",")
352 {
353 source = source.Substring(0, source.Length - 1);
354 }
355 }
356 return source;
357 }
358
359
360 #endregion
361
362 #region 字符串组合
363
364 #region 返回年月日时分秒组合的字符串
365 /**/
366 /// <summary>
367 /// 返回年月日时分秒组合的字符串,如：20050424143012
368 /// </summary>
369 /// <param name="splitString">中间间隔的字符串，如2005\04\24\14\30\12。可以用来建立目录时使用</param>
370 /// <returns></returns>
371 #endregion
372 public static string GetTimeString()
373 {
374 //DateTime now = DateTime.Now;
375
376 //StringBuilder sb = new StringBuilder();
377 //sb.Append(now.Year.ToString("0000"));
378 //sb.Append(splitString);
379 //sb.Append(now.Month.ToString("00"));
380 //sb.Append(splitString);
381 //sb.Append(now.Day.ToString("00"));
382 //sb.Append(splitString);
383 //sb.Append(now.Hour.ToString("00"));
384 //sb.Append(splitString);
385 //sb.Append(now.Minute.ToString("00"));
386 //sb.Append(splitString);
387 //sb.Append(now.Second.ToString("00"));
388 string kk=Convert.ToString(DateTime.Now.ToString("d")).Trim().Replace("-", "").Replace("/", "2") + Convert.ToString(DateTime.Now.ToString("T")).Trim().Replace(":", "").Replace(" ", "5");
389
390 return kk;
391 }
392
393
394 #region 返回年月日时分秒组合的字符串
395 /**/
396 /// <summary>
397 /// 返回年月日组合的字符串,如：20050424 (2005年4月24日)
398 /// </summary>
399 /// <param name="splitString">中间间隔的字符串，如2005\04\24 可以用来建立目录时使用</param>
400 /// <returns></returns>
401 #endregion
402 public static string GetDateString()
403 {
404 //DateTime now = DateTime.Now;
405
406 //StringBuilder sb = new StringBuilder();
407 //sb.Append(now.Year.ToString("0000"));
408 //sb.Append(splitString);
409 //sb.Append(now.Month.ToString("00"));
410 //sb.Append(splitString);
411 //sb.Append(now.Day.ToString("00"));
412 string kk = Convert.ToString(DateTime.Now.ToString("d")).Trim().Replace("-", "").Replace("/", "2") + Convert.ToString(DateTime.Now.ToString("T")).Trim().Replace(":", "").Replace(" ", "5");
413 return kk;
414 }
415
416
417 #endregion
418
419 #region 随机字符串,随机数
420
421 private static string _LowerChar = "abcdefghijklmnopqrstuvwxyz";
422 private static string _UpperChar = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
423 private static string _NumberChar = "0123456789";
424
425 #region 获取种子
426 /**/
427 /// <summary>
428 /// 使用RNGCryptoServiceProvider 做种，可以在一秒内产生的随机数重复率非常
429 /// 的低，对于以往使用时间做种的方法是个升级
430 /// </summary>
431 /// <returns></returns>
432 #endregion
433 public static int GetNewSeed()
434 {
435 byte[] rndBytes = new byte[4];
436 RNGCryptoServiceProvider rng = new RNGCryptoServiceProvider();
437 rng.GetBytes(rndBytes);
438 return BitConverter.ToInt32(rndBytes, 0);
439 }
440
441
442 #region 取得指定范围内的数字随几数
443 /**/
444 /// <summary>
445 /// 取得指定范围内的随几数
446 /// </summary>
447 /// <param name="startNumber">下限数</param>
448 /// <param name="endNumber">上限数</param>
449 /// <returns>int</returns>
450 #endregion
451 public static int GetRandomNumber(int startNumber, int endNumber)
452 {
453 Random objRandom = new Random(GetNewSeed());
454 int r = objRandom.Next(startNumber, endNumber);
455 return r;
456 }
457
458
459 #region 获取指定 ASCII 范围内的随机字符串
460 /**/
461 /// <summary>
462 /// 获取指定 ASCII 范围内的随机字符串
463 /// </summary>
464 /// <param name="resultLength">结果字符串长度</param>
465 /// <param name="startNumber"> 开始的ASCII值 如（33－125）中的 33</param>
466 /// <param name="endNumber"> 结束的ASCII值 如（33－125）中的 125</param>
467 /// <returns></returns>
468 #endregion
469 public static string GetRandomStringByASCII(int resultLength, int startNumber, int endNumber)
470 {
471 System.Random objRandom = new System.Random(GetNewSeed());
472 string result = null;
473 for (int i = 0; i < resultLength; i++)
474 {
475 result += (char)objRandom.Next(startNumber, endNumber);
476 }
477 return result;
478 }
479
480
481 #region 从指定字符串中抽取指定长度的随机字符串
482 /**/
483 /// <summary>
484 /// 从指定字符串中抽取指定长度的随机字符串
485 /// </summary>
486 /// <param name="source">源字符串</param>
487 /// <param name="resultLength">待获取随机字符串长度</param>
488 /// <returns></returns>
489 #endregion
490 private static string GetRandomString(string source, int resultLength)
491 {
492 System.Random objRandom = new System.Random(GetNewSeed());
493 string result = null;
494 for (int i = 0; i < resultLength; i++)
495 {
496 result += source.Substring(objRandom.Next(0, source.Length - 1), 1);
497 }
498 return result;
499 }
500
501
502 #region 获取指定长度随机的数字字符串
503 /**/
504 /// <summary>
505 /// 获取指定长度随机的数字字符串
506 /// </summary>
507 /// <param name="resultLength">待获取随机字符串长度</param>
508 /// <returns></returns>
509 #endregion
510 public static string GetRandomNumberString(int resultLength)
511 {
512 return GetRandomString(_NumberChar, resultLength);
513 }
514
515
516 #region 获取指定长度随机的字母字符串（包含大小写字母）
517 /**/
518 /// <summary>
519 /// 获取指定长度随机的字母字符串（包含大小写字母）
520 /// </summary>
521 /// <param name="resultLength">待获取随机字符串长度</param>
522 /// <returns></returns>
523 #endregion
524 public static string GetRandomLetterString(int resultLength)
525 {
526 return GetRandomString(_LowerChar + _UpperChar, resultLength);
527 }
528
529
530 #region 获取指定长度随机的字母＋数字混和字符串（包含大小写字母）
531 /**/
532 /// <summary>
533 /// 获取指定长度随机的字母＋数字混和字符串（包含大小写字母）
534 /// </summary>
535 /// <param name="resultLength">待获取随机字符串长度</param>
536 /// <returns></returns>
537 #endregion
538 public static string GetRandomMixString(int resultLength)
539 {
540 return GetRandomString(_LowerChar + _UpperChar + _NumberChar, resultLength);
541 }
542
543 #endregion
544
545 #region 字符串验证
546
547 #region 判断字符串是否为整型
548 /**/
549 /// <summary>
550 /// 判断字符串是否为整型
551 /// </summary>
552 /// <param name="source"></param>
553 /// <returns></returns>
554 #endregion
555 public static bool IsInteger(string source)
556 {
557 if (source == null || source == "")
558 {
559 return false;
560 }
561
562 if (Regex.IsMatch(source, "^((\\+)\\d)?\\d*$"))
563 {
564 return true;
565 }
566 else
567 {
568 return false;
569 }
570 }
571
572
573 #region Email 格式是否合法
574 /**/
575 /// <summary>
576 /// Email 格式是否合法
577 /// </summary>
578 /// <param name="strEmail"></param>
579 #endregion
580 public static bool IsEmail(string strEmail)
581 {
582 return Regex.IsMatch(strEmail, @"^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$");
583 }
584
585
586 #region 判断是否IP
587 /**/
588 /// <summary>
589 /// 判断是否IP
590 /// </summary>
591 /// <param name="source"></param>
592 /// <returns></returns>
593 #endregion
594 public static bool IsIP(string source)
595 {
596 return Regex.IsMatch(source, @"^(((25[0-5]|2[0-4][0-9]|19[0-1]|19[3-9]|18[0-9]|17[0-1]|17[3-9]|1[0-6][0-9]|1[1-9]|[2-9][0-9]|[0-9])\.(25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9][0-9]|[0-9]))|(192\.(25[0-5]|2[0-4][0-9]|16[0-7]|169|1[0-5][0-9]|1[7-9][0-9]|[1-9][0-9]|[0-9]))|(172\.(25[0-5]|2[0-4][0-9]|1[0-9][0-9]|1[0-5]|3[2-9]|[4-9][0-9]|[0-9])))\.(25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9][0-9]|[0-9])\.(25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9][0-9]|[0-9])$");
597 }
598
599
600 #region 检查字符串是否为A-Z、0-9及下划线以内的字符
601
602 /**/
603 /// <summary>
604 /// 检查字符串是否为A-Z、0-9及下划线以内的字符
605 /// </summary>
606 /// <param name="str">被检查的字符串</param>
607 /// <returns>是否有特殊字符</returns>
608 #endregion
609 public static bool IsLetterOrNumber(string str)
610 {
611 bool b = System.Text.RegularExpressions.Regex.IsMatch(str, "[a-zA-Z0-9_]");
612 return b;
613 }
614
615
616 #region 验输入字符串是否含有“/\<>:.?*|$]”特殊字符
617 /**/
618 /// <summary>
619 /// 验输入字符串是否含有“/\:.?*|$]”特殊字符
620 /// </summary>
621 /// <param name="source"></param>
622 /// <returns></returns>
623 #endregion
624 public static bool IsSpecialChar(string source)
625 {
626 Regex r = new Regex(@"[/\<>:.?*|$]");
627 return r.IsMatch(source);
628 }
629
630
631 #region 是否全为中文/日文/韩文字符
632 /**/
633 /// <summary>
634 /// 是否全为中文/日文/韩文字符
635 /// </summary>
636 /// <param name="source">源字符串</param>
637 /// <returns></returns>
638 #endregion
639 public static bool IsChineseChar(string source)
640 {
641 //中文/日文/韩文: [\u4E00-\u9FA5]
642 //英文:[a-zA-Z]
643 return Regex.IsMatch(source, @"^[\u4E00-\u9FA5]+$");
644 }
645
646
647 #region 是否包含双字节字符(允许有单字节字符)
648 /**/
649 /// <summary>
650 /// 是否包含双字节字符(允许有单字节字符)
651 /// </summary>
652 /// <param name="source"></param>
653 /// <returns></returns>
654 #endregion
655 public static bool IsDoubleChar(string source)
656 {
657 return Regex.IsMatch(source, @"[^\x00-\xff]");
658 }
659
660
661 #region 是否为日期型字符串
662 /**/
663 /// <summary>
664 /// 是否为日期型字符串
665 /// </summary>
666 /// <param name="source">日期字符串(2005-6-30)</param>
667 /// <returns></returns>
668 #endregion
669 public static bool IsDate(string source)
670 {
671 return Regex.IsMatch(source, @"^((((1[6-9]|[2-9]\d)\d{2})-(0?[13578]|1[02])-(0?[1-9]|[12]\d|3[01]))|(((1[6-9]|[2-9]\d)\d{2})-(0?[13456789]|1[012])-(0?[1-9]|[12]\d|30))|(((1[6-9]|[2-9]\d)\d{2})-0?2-(0?[1-9]|1\d|2[0-8]))|(((1[6-9]|[2-9]\d)(0[48]|[2468][048]|[13579][26])|((16|[2468][048]|[3579][26])00))-0?2-29-))$");
672 }
673
674
675 #region 是否为时间型字符串
676 /**/
677 /// <summary>
678 /// 是否为时间型字符串
679 /// </summary>
680 /// <param name="source">时间字符串(15:00:00)</param>
681 /// <returns></returns>
682 #endregion
683 public static bool IsTime(string source)
684 {
685 return Regex.IsMatch(source, @"^((20|21|22|23|[0-1]?\d):[0-5]?\d:[0-5]?\d)$");
686 }
687
688
689 #region 是否为日期+时间型字符串
690 /**/
691 /// <summary>
692 /// 是否为日期+时间型字符串
693 /// </summary>
694 /// <param name="source"></param>
695 /// <returns></returns>
696 #endregion
697 public static bool IsDateTime(string source)
698 {
699 return Regex.IsMatch(source, @"^((((1[6-9]|[2-9]\d)\d{2})-(0?[13578]|1[02])-(0?[1-9]|[12]\d|3[01]))|(((1[6-9]|[2-9]\d)\d{2})-(0?[13456789]|1[012])-(0?[1-9]|[12]\d|30))|(((1[6-9]|[2-9]\d)\d{2})-0?2-(0?[1-9]|1\d|2[0-8]))|(((1[6-9]|[2-9]\d)(0[48]|[2468][048]|[13579][26])|((16|[2468][048]|[3579][26])00))-0?2-29-)) ((20|21|22|23|[0-1]?\d):[0-5]?\d:[0-5]?\d)$");
700 }
701
702
703 #region 是否为钱币型数据
704 /**/
705 /// <summary>
706 /// 是否为钱币型数据
707 /// </summary>
708 /// <param name="source"></param>
709 /// <returns></returns>
710 #endregion
711 public static bool IsMoney(string source)
712 {
713 return false;
714 }
715
716 #endregion
717
718 #region 字符串截取
719
720 #region 获取字符串的实际长度(按单字节)
721 /**/
722 /// <summary>
723 /// 获取字符串的实际长度(按单字节)
724 /// </summary>
725 /// <param name="source"></param>
726 /// <returns></returns>
727 #endregion
728 public static int GetRealLength(string source)
729 {
730 return System.Text.Encoding.Default.GetByteCount(source);
731 }
732
733
734 #region 取得固定长度的字符串(按单字节截取)
735 /**/
736 /// <summary>
737 /// 取得固定长度的字符串(按单字节截取)。
738 /// </summary>
739 /// <param name="source">源字符串</param>
740 /// <param name="resultLength">截取长度</param>
741 /// <returns></returns>
742 #endregion
743 public static string SubString(string source, int resultLength)
744 {
745
746 //判断字符串长度是否大于截断长度
747 if (System.Text.Encoding.Default.GetByteCount(source) > resultLength)
748 {
749 //判断字串是否为空
750 if (source == null)
751 {
752 return "";
753 }
754
755 //初始化
756 int i = 0, j = 0;
757
758 //为汉字或全脚符号长度加2否则加1
759 foreach (char newChar in source)
760 {
761 if ((int)newChar > 127)
762 {
763 i += 2;
764 }
765 else
766 {
767 i++;
768 }
769 if (i > resultLength)
770 {
771 source = source.Substring(0, j);
772 break;
773 }
774 j++;
775 }
776 }
777 return source;
778 }
779
780
781 #region 按长度分割字符串
782 /**/
783 /// <summary>
784 /// 按长度分割字符串，如短信
785 /// </summary>
786 /// <param name="str"></param>
787 /// <param name="len"></param>
788 /// <returns></returns>
789 #endregion
790 private ArrayList SplitStringByLength(string str, int len)
791 {
792 ArrayList arrBlock = new ArrayList();
793 int intBlockCount = str.Length / len;
794 if (str.Length % len != 0)
795 {
796 for (int i = 0; i <= intBlockCount; i++)
797 {
798 if ((str.Length - i * len) > len)
799 arrBlock.Add(str.Substring(i * len, len));
800 else
801 arrBlock.Add(str.Substring(i * len, (str.Length % len)));
802 }
803 }
804 else
805 {
806 for (int i = 0; i < intBlockCount; i++)
807 {
808 arrBlock.Add(str.Substring(i * len, len));
809 }
810 }
811 return arrBlock;
812 }
813
814
815 #endregion
816
817 #region 字符串比较
818
819 /**/
820 /// <summary>
821 /// 获得某个字符串在另个字符串中出现的次数
822 /// </summary>
823 /// <param name="strOriginal">要处理的字符</param>
824 /// <param name="strSymbol">符号</param>
825 /// <returns>返回值</returns>
826 public static int GetStringIncludeCount(string strOriginal, string strSymbol)
827 {
828
829 int count = 0;
830 count = strOriginal.Length - strOriginal.Replace(strSymbol, String.Empty).Length;
831 return count;
832 }
833
834 /**/
835 /// <summary>
836 /// 获得某个字符串在另个字符串第一次出现时前面所有字符
837 /// </summary>
838 /// <param name="strOriginal">要处理的字符</param>
839 /// <param name="strSymbol">符号</param>
840 /// <returns>返回值</returns>
841 public static string GetFirstString(string strOriginal, string strSymbol)
842 {
843 int strPlace = strOriginal.IndexOf(strSymbol);
844 if (strPlace != -1)
845 {
846 strOriginal = strOriginal.Substring(0, strPlace);
847 }
848 return strOriginal;
849 }
850
851 /**/
852 /// <summary>
853 /// 获得某个字符串在另个字符串最后一次出现时后面所有字符
854 /// </summary>
855 /// <param name="strOriginal">要处理的字符</param>
856 /// <param name="strSymbol">符号</param>
857 /// <returns>返回值</returns>
858 public static string GetLastString(string strOriginal, string strSymbol)
859 {
860 int strPlace = strOriginal.LastIndexOf(strSymbol) + strSymbol.Length;
861 strOriginal = strOriginal.Substring(strPlace);
862 return strOriginal;
863 }
864
865 /**/
866 /// <summary>
867 /// 获得两个字符之间第一次出现时前面所有字符
868 /// </summary>
869 /// <param name="strOriginal">要处理的字符</param>
870 /// <param name="strFirst">最前哪个字符</param>
871 /// <param name="strLast">最后哪个字符</param>
872 /// <returns>返回值</returns>
873 public static string GetTwoMiddleFirstStr(string strOriginal, string strFirst, string strLast)
874 {
875 strOriginal = GetFirstString(strOriginal, strLast);
876 strOriginal = GetLastString(strOriginal, strFirst);
877 return strOriginal;
878 }
879
880 /**/
881 /// <summary>
882 /// 获得两个字符之间最后一次出现时的所有字符
883 /// </summary>
884 /// <param name="strOriginal">要处理的字符</param>
885 /// <param name="strFirst">最前哪个字符</param>
886 /// <param name="strLast">最后哪个字符</param>
887 /// <returns>返回值</returns>
888 public static string GetTwoMiddleLastStr(string strOriginal, string strFirst, string strLast)
889 {
890 strOriginal = GetLastString(strOriginal, strFirst);
891 strOriginal = GetFirstString(strOriginal, strLast);
892 return strOriginal;
893 }
894
895 /**/
896 /// <summary>
897 /// 发帖过滤词（用“|”号分隔）Application["app_state_FilterWord"]
898 /// </summary>
899 /// <param name="str">字符串</param>
900 /// <param name="chkword">过滤词（用“|”号分隔）</param>
901 public static bool CheckBadWords(string str, string chkword)
902 {
903 if (chkword != null && chkword != "")
904 {
905 string filter = chkword;
906 string chk1 = "";
907 string[] aryfilter = filter.Split('|');
908 for (int i = 0; i < aryfilter.Length; i++)
909 {
910 chk1 = aryfilter[i].ToString();
911 if (str.IndexOf(chk1) >= 0)
912 return true;
913 }
914 }
915 return false;
916 }
917
918 /**/
919 /// <summary>
920 /// 发帖过滤字(需审核)（不同组间用“§”号分隔，同组内用“,”分隔）Application["app_state_Check_FilterWord"]
921 /// </summary>
922 /// <param name="str">字符串</param>
923 /// <param name="chkword">过滤字(需审核)（不同组间用“§”号分隔，同组内用“,”分隔）</param>
924 public static bool CheckilterStr(string str, string chkword)
925 {
926
927 if (chkword != null && chkword != "")
928 {
929 string filter = chkword;
930 string[] aryfilter = filter.Split('§');
931 string[] aryfilter_lei;
932 int lei_for = 0, j;
933
934 for (int i = 0; i < aryfilter.Length; i++)
935 {
936 lei_for = 0;
937 aryfilter_lei = aryfilter[i].Split(',');
938 for (j = 0; j < aryfilter_lei.Length; j++)
939 {
940 if (str.IndexOf(aryfilter_lei[j].ToString()) >= 0)
941 lei_for += 1;
942 }
943 if (lei_for == aryfilter_lei.Length)
944 return true;
945 }
946 }
947 return false;
948 }
949
950
951 #endregion
952
953 #region 字符集转换
954
955 #region 将 GB2312 值转换为 UTF8 字符串(如：测试 -> 娴嬭瘯 )
956 /**/
957 /// <summary>
958 /// 将 GB2312 值转换为 UTF8 字符串(如：测试 -> 娴嬭瘯 )
959 /// </summary>
960 /// <param name="source"></param>
961 /// <returns></returns>
962 #endregion
963 public static string ConvertGBToUTF8(string source)
964 {
965 /**/
966 /*
967 byte[] bytes;
968 bytes = System.Text.Encoding.Default.GetBytes(source);
969 System.Text.Decoder gbDecoder = System.Text.Encoding.GetEncoding("gb2312").GetDecoder();
970 int charCount = gbDecoder.GetCharCount(bytes,0 , bytes.Length);
971 Char[] chars = new Char[charCount];
972 int charsDecodedCount = gbDecoder.GetChars(bytes,0,bytes.Length,chars,0);
973 return new string(chars);
974 */
975
976 return Encoding.GetEncoding("GB2312").GetString(Encoding.UTF8.GetBytes(source));
977 }
978
979
980 #region 将 UTF8 值转换为 GB2312 字符串 (如：娴嬭瘯 -> 测试)
981 /**/
982 /// <summary>
983 /// 将 UTF8 值转换为 GB2312 字符串 (如：娴嬭瘯 -> 测试)
984 /// </summary>
985 /// <param name="source"></param>
986 /// <returns></returns>
987 #endregion
988 public static string ConvertUTF8ToGB(string source)
989 {
990 /**/
991 /*
992 byte[] bytes;
993 //模拟编码
994 System.Text.UTF8Encoding utf8 = new System.Text.UTF8Encoding();
995 bytes = utf8.GetBytes(source);
996
997 //开始解码
998 System.Text.Decoder utf8Decoder = System.Text.Encoding.UTF8.GetDecoder();
999
1000 int charCount = utf8Decoder.GetCharCount(bytes, 0, bytes.Length);
1001 Char[] chars = new Char[charCount];
1002 int charsDecodedCount = utf8Decoder.GetChars(bytes, 0, bytes.Length, chars, 0);
1003
1004 return new string(chars);
1005 */
1006
1007 return Encoding.UTF8.GetString(Encoding.GetEncoding("GB2312").GetBytes(source));
1008 }
1009
1010
1011 #region 由16进制转为汉字字符串（如：B2E2 -> 测 ）
1012 /**/
1013 /// <summary>
1014 /// 由16进制转为汉字字符串（如：B2E2 -> 测 ）
1015 /// </summary>
1016 /// <param name="source"></param>
1017 /// <returns></returns>
1018 #endregion
1019 public static string ConvertHexToString(string source)
1020 {
1021 byte[] oribyte = new byte[source.Length / 2];
1022 for (int i = 0; i < source.Length; i += 2)
1023 {
1024 string str = Convert.ToInt32(source.Substring(i, 2), 16).ToString();
1025 oribyte[i / 2] = Convert.ToByte(source.Substring(i, 2), 16);
1026 }
1027 return System.Text.Encoding.Default.GetString(oribyte);
1028 }
1029
1030
1031 #region 字符串转为16进制字符串（如：测 -> B2E2 ）
1032 /**/
1033 /// <summary>
1034 /// 字符串转为16进制字符串（如：测 -> B2E2 ）
1035 /// </summary>
1036 /// <param name="Word"></param>
1037 /// <returns></returns>
1038 #endregion
1039 public static string ConvertToHex(string Word)
1040 {
1041 int i = Word.Length;
1042 string temp;
1043 string end = "";
1044 byte[] array = new byte[2];
1045 int i1, i2;
1046 for (int j = 0; j < i; j++)
1047 {
1048 temp = Word.Substring(j, 1);
1049 array = System.Text.Encoding.Default.GetBytes(temp);
1050 if (array.Length.ToString() == "1")
1051 {
1052 i1 = Convert.ToInt32(array[0]);
1053 end += Convert.ToString(i1, 16);
1054 }
1055 else
1056 {
1057 i1 = Convert.ToInt32(array[0]);
1058 i2 = Convert.ToInt32(array[1]);
1059 end += Convert.ToString(i1, 16);
1060 end += Convert.ToString(i2, 16);
1061 }
1062 }
1063 return end.ToUpper();
1064 }
1065
1066
1067 #region 字符串转为unicode字符串（如：测试 -> 测试）
1068 /**/
1069 /// <summary>
1070 /// 字符串转为unicode字符串（如：测试 -> 测试）
1071 /// </summary>
1072 /// <param name="source"></param>
1073 /// <returns></returns>
1074 #endregion
1075 public static string ConvertToUnicode(string source)
1076 {
1077 StringBuilder sa = new StringBuilder();//Unicode
1078 string s1;
1079 string s2;
1080 for (int i = 0; i < source.Length; i++)
1081 {
1082 byte[] bt = System.Text.Encoding.Unicode.GetBytes(source.Substring(i, 1));
1083 if (bt.Length > 1)//判断是否汉字
1084 {
1085 s1 = Convert.ToString((short)(bt[1] - '\0'), 16);//转化为16进制字符串
1086 s2 = Convert.ToString((short)(bt[0] - '\0'), 16);//转化为16进制字符串
1087 s1 = (s1.Length == 1 ? "0" : "") + s1;//不足位补0
1088 s2 = (s2.Length == 1 ? "0" : "") + s2;//不足位补0
1089 sa.Append("&#" + Convert.ToInt32(s1 + s2, 16) + ";");
1090 }
1091 }
1092
1093 return sa.ToString();
1094 }
1095
1096
1097 #region 字符串转为UTF8字符串（如：测试 -> \u6d4b\u8bd5）
1098 /**/
1099 /// <summary>
1100 /// 字符串转为UTF8字符串（如：测试 -> \u6d4b\u8bd5）
1101 /// </summary>
1102 /// <param name="source"></param>
1103 /// <returns></returns>
1104 #endregion
1105 public static string ConvertToUTF8(string source)
1106 {
1107 StringBuilder sb = new StringBuilder();//UTF8
1108 string s1;
1109 string s2;
1110 for (int i = 0; i < source.Length; i++)
1111 {
1112 byte[] bt = System.Text.Encoding.Unicode.GetBytes(source.Substring(i, 1));
1113 if (bt.Length > 1)//判断是否汉字
1114 {
1115 s1 = Convert.ToString((short)(bt[1] - '\0'), 16);//转化为16进制字符串
1116 s2 = Convert.ToString((short)(bt[0] - '\0'), 16);//转化为16进制字符串
1117 s1 = (s1.Length == 1 ? "0" : "") + s1;//不足位补0
1118 s2 = (s2.Length == 1 ? "0" : "") + s2;//不足位补0
1119 sb.Append("\\u" + s1 + s2);
1120 }
1121 }
1122
1123 return sb.ToString();
1124 }
1125
1126
1127 #region 转化为ASC码方法
1128 //转化为ASC码方法
1129
1130 public string ConvertToAsc(string txt)
1131 {
1132 string newtxt = "";
1133 foreach (char c in txt)
1134 {
1135
1136 newtxt += Convert.ToString((int)c);
1137 }
1138 return newtxt;
1139
1140 }
1141 #endregion
1142
1143 #region BASE64
1144
1145 /**/
1146 /// <summary>
1147 /// 将字符串使用base64算法加密
1148 /// </summary>
1149 /// <param name="source">待加密的字符串</param>
1150 /// <returns>加码后的文本字符串</returns>
1151 public static string Base64_Encrypt(string source)
1152 {
1153 return Convert.ToBase64String(System.Text.Encoding.Default.GetBytes(source));
1154 }
1155
1156 /**/
1157 /// <summary>
1158 /// 从Base64编码的字符串中还原字符串，支持中文
1159 /// </summary>
1160 /// <param name="source">Base64加密后的字符串</param>
1161 /// <returns>还原后的文本字符串</returns>
1162 public static string Base64_Decrypt(string source)
1163 {
1164 return System.Text.Encoding.Default.GetString(Convert.FromBase64String(source));
1165 }
1166 #endregion
1167
1168 #endregion
1169
1170 #region 字符串格式化
1171
1172 #region 将字符串反转
1173 /**/
1174 /// <summary>
1175 /// 将字符串反转
1176 /// </summary>
1177 /// <param name="source"></param>
1178 /// <returns></returns>
1179 #endregion
1180 public static string FormatReverse(string source)
1181 {
1182 char[] ca = source.ToCharArray();
1183 Array.Reverse(ca);
1184 source = new String(ca);
1185 return source;
1186 }
1187
1188
1189 /**/
1190 /// <summary>
1191 /// 格式化为小数点两位的字符串(四舍五入)
1192 /// </summary>
1193 /// <param name="source"></param>
1194 /// <returns></returns>
1195 public static string FormatFloat2(double source)
1196 {
1197 //double tmp=1223333.24215265652;
1198 return source.ToString("##,###.000");
1199 }
1200
1201
1202 /**/
1203 /// <summary>
1204 /// 将数字字符串转成货币格式
1205 /// </summary>
1206 /// <returns></returns>
1207 public static string GetMoneyFormat()
1208 {
1209 /**/
1210 /*
1211 string.Format("${0:###,###,###.##}元",decimalVar);
1212 --------------------------------------------------------------------------------
1213 找到system.string的format方法
1214 string str="99988"
1215 str=format(str,"##,####.00")
1216 str value is:99,988.00
1217 试一下行不行
1218 --------------------------------------------------------------------------------
1219 string strMoney="544.54";
1220 decimal decMoney=System.Convert.ToDecimal(strMoney);
1221 string money=decMoney.ToString("c");
1222
1223 如果要转换成不同地区的符号，可以用：
1224 CultureInfo MyCulture = new CultureInfo("zh-CN");
1225 String MyString = MyInt.ToString("C", MyCulture);
1226
1227 注意:这里OrderTotal的格式只能是Decimal.
1228
1229 */
1230 return "";
1231 }
1232
1233
1234 /**/
1235 /// <summary>
1236 /// 格式化字符串 字符串1234567,想变成1,234,567
1237 /// </summary>
1238 /// <param name="source"></param>
1239 /// <returns></returns>
1240 public static string GetO1(string source)
1241 {
1242 //return source.ToString("N");
1243 //return source.ToString("###,###");
1244 return "";
1245 }
1246
1247
1248 /**/
1249 /// <summary>
1250 /// 十进制数字1转换为字符串0a，在前面补零
1251 /// </summary>
1252 /// <param name="source"></param>
1253 /// <returns></returns>
1254 public static string OctToHex(int source)
1255 {
1256 return source.ToString("X2");
1257 }
1258
1259
1260 /**/
1261 /// <summary>
1262 /// 将一个十六进制表示的字符串转成int型？如"0A" = 10
1263 /// </summary>
1264 /// <param name="source"></param>
1265 /// <returns></returns>
1266 public static string HexToOct(string source)
1267 {
1268 return Convert.ToInt16(source, 16).ToString();
1269 }
1270
1271
1272 #endregion
1273
1274 #region 身份证验证
1275
1276 #region 从18位身份证获取用户所在省份、生日、性别信息
1277 /**/
1278 /// <summary>
1279 /// 从18位身份证获取用户所在省份、生日、性别信息
1280 /// </summary>
1281 /// <param name="cid">身份证字符串</param>
1282 /// <returns>如：福建,1978-06-30,男</returns>
1283 #endregion
1284 public static string GetCidInfo(string cid)
1285 {
1286 string[] aCity = new string[] { null, null, null, null, null, null, null, null, null, null, null, "北京", "天津", "河北", "山西", "内蒙古", null, null, null, null, null, "辽宁", "吉林", "黑龙江", null, null, null, null, null, null, null, "上海", "江苏", "浙江", "安微", "福建", "江西", "山东", null, null, null, "河南", "湖北", "湖南", "广东", "广西", "海南", null, null, null, "重庆", "四川", "贵州", "云南", "西藏", null, null, null, null, null, null, "陕西", "甘肃", "青海", "宁夏", "***", null, null, null, null, null, "台湾", null, null, null, null, null, null, null, null, null, "香港", "澳门", null, null, null, null, null, null, null, null, "国外" };
1287 double iSum = 0;
1288 System.Text.RegularExpressions.Regex rg = new System.Text.RegularExpressions.Regex(@"^\d{17}(\d|x)$");
1289 System.Text.RegularExpressions.Match mc = rg.Match(cid);
1290 if (!mc.Success)
1291 {
1292 return "";
1293 }
1294 cid = cid.ToLower();
1295 cid = cid.Replace("x", "a");
1296 if (aCity[int.Parse(cid.Substring(0, 2))] == null)
1297 {
1298 return "非法地区";
1299 }
1300 try
1301 {
1302 DateTime.Parse(cid.Substring(6, 4) + "-" + cid.Substring(10, 2) + "-" + cid.Substring(12, 2));
1303 }
1304 catch
1305 {
1306 return "非法生日";
1307 }
1308 for (int i = 17; i >= 0; i--)
1309 {
1310 iSum += (System.Math.Pow(2, i) % 11) * int.Parse(cid[17 - i].ToString(), System.Globalization.NumberStyles.HexNumber);
1311
1312 }
1313 if (iSum % 11 != 1)
1314 return ("非法证号");
1315
1316 return (aCity[int.Parse(cid.Substring(0, 2))] + "," + cid.Substring(6, 4) + "-" + cid.Substring(10, 2) + "-" + cid.Substring(12, 2) + "," + (int.Parse(cid.Substring(16, 1)) % 2 == 1 ? "男" : "女"));
1317
1318 }
1319
1320
1321 #region 十五位的身份证号转为十八位的
1322 /**/
1323 /// <summary>
1324 /// 十五位的身份证号转为十八位的
1325 /// </summary>
1326 /// <param name="source">十五位的身份证号</param>
1327 /// <returns></returns>
1328 #endregion
1329 public static string Cid15To18(string source)
1330 {
1331 string[] arrInt = new string[17] { "7", "9", "10", "5", "8", "4", "2", "1", "6", "3", "7", "9", "10", "5", "8", "4", "2" };
1332 string[] arrCh = new string[11] { "1", "0", "X", "9", "8", "7", "6", "5", "4", "3", "2" };
1333
1334 int nTemp = 0, i;
1335
1336 if (source.Length == 15)
1337 {
1338 source = source.Substring(0, 6) + "19" + source.Substring(6, source.Length - 6);
1339 for (i = 0; i < source.Length; i++)
1340 {
1341 nTemp += int.Parse(source.Substring(i, 1)) * int.Parse(arrInt[i]);
1342 }
1343 source += arrCh[nTemp % 11];
1344
1345 return source;
1346 }
1347 else
1348 {
1349 return null;
1350 }
1351
1352 }
1353 #endregion
1354
1355 #region 随机数
1356 public static string GetRandNum(int randNumLength)
1357 {
1358 System.Random randNum = new System.Random(unchecked((int)DateTime.Now.Ticks));
1359 StringBuilder sb = new StringBuilder(randNumLength);
1360 for (int i = 0; i < randNumLength; i++)
1361 {
1362 sb.Append(randNum.Next(0, 9));
1363 }
1364 return sb.ToString();
1365 }
1366
1367 #endregion
1368
1369 #region 过滤HTML代码的函数
1370 /// <summary>
1371 /// 过滤HTML代码的函数
1372 /// </summary>
1373 /// <param name="html"></param>
1374 /// <returns></returns>
1375 public string HtmlStr(string html)
1376 {
1377 System.Text.RegularExpressions.Regex regex1 = new System.Text.RegularExpressions.Regex(@"<script[\s\S]+</script *>", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
1378 System.Text.RegularExpressions.Regex regex2 = new System.Text.RegularExpressions.Regex(@" href *= *[\s\S]*script *:", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
1379 System.Text.RegularExpressions.Regex regex3 = new System.Text.RegularExpressions.Regex(@" no[\s\S]*=", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
1380 System.Text.RegularExpressions.Regex regex4 = new System.Text.RegularExpressions.Regex(@"<iframe[\s\S]+</iframe *>", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
1381 System.Text.RegularExpressions.Regex regex5 = new System.Text.RegularExpressions.Regex(@"<frameset[\s\S]+</frameset *>", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
1382 System.Text.RegularExpressions.Regex regex6 = new System.Text.RegularExpressions.Regex(@"\<img[^\>]+\>", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
1383 System.Text.RegularExpressions.Regex regex7 = new System.Text.RegularExpressions.Regex(@"</p>", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
1384 System.Text.RegularExpressions.Regex regex8 = new System.Text.RegularExpressions.Regex(@"<p>", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
1385 System.Text.RegularExpressions.Regex regex9 = new System.Text.RegularExpressions.Regex(@"<[^>]*>", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
1386 html = regex1.Replace(html, ""); //过滤<script></script>标记
1387 html = regex2.Replace(html, ""); //过滤href=javascript: (<A>) 属性
1388
1389
1390 html = regex3.Replace(html, " _disibledevent="); //过滤其它控件的on...事件
1391 html = regex4.Replace(html, ""); //过滤iframe
1392 html = regex5.Replace(html, ""); //过滤frameset
1393 html = regex6.Replace(html, ""); //过滤frameset
1394 html = regex7.Replace(html, ""); //过滤frameset
1395 html = regex8.Replace(html, ""); //过滤frameset
1396 html = regex9.Replace(html, "");
1397 html = html.Replace(" ", "");
1398
1399
1400 html = html.Replace("</strong>", "");
1401 html = html.Replace("<strong>", "");
1402 return html;
1403 }
1404 #endregion
1405
1406
1407 }
1408 }
1409
