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http://www.cnblogs.com/jianphu/archive/2007/05/22/756041.html
取字符串的实用方法(超过一定长度自动换行)
1/// <summary>
2 /// 截取字符串,不限制字符串长度
3 /// </summary>
4 /// <param name="str">待截取的字符串</param>
5 /// <param name="len">每行的长度,多于这个长度自动换行</param>
6 /// <returns></returns>
7 public string CutStr(string str,int len)
8 { string s="";
9
10 for(int i=0;i<str.Length ;i++)
11 {
12 int r= i% len;
13 int last =(str.Length/len)*len;
14 if (i!=0 && i<=last)
15 {
16
17 if( r==0)
18 {
19 s+=str.Substring(i-len,len)+"<br>";
20 }
21
22 }
23 else if (i>last)
24 {
25 s+=str.Substring(i-1) ;
26 break;
27 }
28
29 }
30
31 return s;
32
33 }
34
35
36 /// <summary>
37 /// 截取字符串并限制字符串长度,多于给定的长度+。。。
38 /// </summary>
39 /// <param name="str">待截取的字符串</param>
40 /// <param name="len">每行的长度,多于这个长度自动换行</param>
41 /// <param name="max">输出字符串最大的长度</param>
42 /// <returns></returns>
43 public string CutStr(string str,int len,int max)
44 {
45 string s="";
46 string sheng="";
47 if (str.Length >max)
48 {
49 str=str.Substring(0,max) ;
50 sheng="
";
51 }
52 for(int i=0;i<str.Length ;i++)
53 {
54 int r= i% len;
55 int last =(str.Length/len)*len;
56 if (i!=0 && i<=last)
57 {
58
59 if( r==0)
60 {
61 s+=str.Substring(i-len,len)+"<br>";
62 }
63
64 }
65 else if (i>last)
66 {
67 s+=str.Substring(i-1) ;
68 break;
69 }
70
71 }
72
73 return s+sheng;
74
75 }
必须设置同一个域
写Cookie的代码
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这里设置的域是有意义的,比如 你的域名为www.111.com
你的asp程序和asp.net程序都放在上面
那么,你那个设置域的地方都写 www.111.com 即可
2进制、8进制、10进制、16进制...各种进制间的轻松转换(c#)
在.net Framework中,System.Convert类中提供了较为全面的各种类型、数值之间的转换功能。其中的两个方法可以轻松的实现各种进制的数值间的转换:
Convert.ToInt32(string value, int fromBase):
可以把不同进制数值的字符串转换为数字,其中fromBase参数为进制的格式,只能是2、8、10及16:
如Convert.ToInt32(”0010”,2)执行的结果为2;
Convert.ToString(int value, int toBase):
可以把一个数字转换为不同进制数值的字符串格式,其中toBase参数为进制的格式,只能是2、8、10及16:
如Convert.ToString(2,2)执行的结果为”0010”
现在我们做一个方法实现各种进制间的字符串自由转换:选把它转成数值型,然后再转成相应的进制的字符串:
public string ConvertString(string value, int fromBase, int toBase)
{
int intValue = Convert.ToInt32(value, fromBase);
return Convert.ToString(intValue, toBase);
}
其中fromBase为原来的格式
toBase为将要转换成的格式