js 函数分类1
*********************时间类********************
/*js 时间获取*/
var now = new Date(); //获取系统日期，即Sat Jul 29 08:24:48 UTC+0800 2006
var yy = now.getFullYear(); //截取年，即2006
var mo = now.getMonth() + 1; //截取月，即07 （系统中的月份为0~11，所有使用的时候要+1）
var dd = now.getDate(); //截取日，即29
var hh = now.getHours(); //截取小时，即8
var mm = now.getMinutes(); //截取分钟，即34
var ss = now.getSeconds(); //获取秒
/*时间转换成毫秒数*/
var oldTime = (new Date("2012/12/25 20:11:11")).getTime(); //得到毫秒数
不是上面的格式需要转化，
如var strdate="2012-12-25 20:11:11";
strdate=strdate.replace(/-/g,'/');
var oldTime=(new Date(strdate)).getTime();
得到的结果为时间戳。
其中strdate可以有的格式有 ：2010/03/04 2010/03/04 20:20 2010/03/04 20:20:20
/*毫秒数转化为时间*/
var oldTime = (new Date("2012/12/25 20:11:11")).getTime(); //得到毫秒数
var newTime = new Date(oldTime); //就得到普通的时间了
/*将时间戳转化为时间*/
getLocalTime: function (nS) {
return new Date(parseInt(nS)).toLocaleString().replace(/:\d{1,2}$/, ' ');
},
return new Date(parseInt(nS)).toLocaleString().replace(/:\d{1,2}$/, ' ');
},
常用时间样式
Style(2位表示年份) | Style(4位表示年份) | 输入输出格式 ------------------------------------------------------------------------------------------------------------ 0 | 100 | mon dd yyyy hh:miAM(或PM) ------------------------------------------------------------------------------------------------------------ 1 | 101 美国 | mm/dd/yy ------------------------------------------------------------------------------------------------------------ 2 | 102 ANSI | yy-mm-dd ------------------------------------------------------------------------------------------------------------ 3 | 103 英法 | dd/mm/yy ------------------------------------------------------------------------------------------------------------ 4 | 104 德国 | dd.mm.yy ------------------------------------------------------------------------------------------------------------ 5 | 105 意大利 | dd-mm-yy ------------------------------------------------------------------------------------------------------------ 6 | 106 | dd mon yy ------------------------------------------------------------------------------------------------------------ 7 | 107 | mon dd,yy ------------------------------------------------------------------------------------------------------------ 8 | 108 | hh:mm:ss ------------------------------------------------------------------------------------------------------------ 9 | 109 | mon dd yyyy hh:mi:ss:mmmmAM(或PM) ------------------------------------------------------------------------------------------------------------ 10 | 110 美国 | mm-dd-yy ------------------------------------------------------------------------------------------------------------ 11 | 111 日本 | yy/mm/dd ------------------------------------------------------------------------------------------------------------ 12 | 112 ISO | yymmdd ------------------------------------------------------------------------------------------------------------ 13 | 113 欧洲默认值 | dd mon yyyy hh:mi:ss:mmm(24小时制) ------------------------------------------------------------------------------------------------------------ 14 | 114 | hh:mi:ss:mmm(24小时制) ------------------------------------------------------------------------------------------------------------ 20 | 120 ODBC 规范 | yyyy-mm-dd hh:mi:ss(24小时制) ------------------------------------------------------------------------------------------------------------ 21 | 121 | yyyy-mm-dd hh:mi:ss:mmm(24小时制)
*********************网页类********************
获取页面URL参数
function getQueryString(name) {
var reg =new RegExp("(^|&)"+ name +"=([^&]*)(&|$)", "i");
var r = window.location.search.substr(1).match(reg);
if (r !=null) return unescape(r[2]); returnnull;
}
var reg =new RegExp("(^|&)"+ name +"=([^&]*)(&|$)", "i");
var r = window.location.search.substr(1).match(reg);
if (r !=null) return unescape(r[2]); returnnull;
}
获取键盘输入值
通window.onload一样document.onkeydown只可以在一个页面中出现一次
document.onkeydown = function(event) {
var e = event || window.event || arguments.callee.caller.arguments[0];
if (e && e.keyCode == 13) {
FunPaging("Skip");
}
}
网页禁止复制和拷贝，禁止按键，禁止网页另存为
//禁止鼠标右键 $(document).bind("contextmenu", function(e) { return false; }); //禁止键盘按键: <script type="text/javascript"> function key() { if (event.shiftKey) { window.close(); } //禁止Shift if (event.altKey) { window.close(); } //禁止Alt if (event.ctrlKey) { window.close(); } //禁止Ctrl return false; } document.onkeydown = key; </script> <!-- 禁止选中内容 --> <script type="text/javascript"> var omitformtags = ["input", "textarea", "select"] omitformtags = omitformtags.join("|") function disableselect(e) { if (omitformtags.indexOf(e.target.tagName.toLowerCase()) == -1) return false } function reEnable() { return true } if (typeof document.onselectstart != "undefined") document.onselectstart = new Function("return false") else { document.onmousedown = disableselect document.onmouseup = reEnable } </script> <!--禁止网页另存为： --> <noscript> <iframe src="/*"></iframe> </noscript> JS禁止网页复制和拷贝，只需要在body中加入部分代码即可 <body oncontextmenu="return false" onselectstart="return false" oncopy="return false">
1、禁止右键 看到那里大家一定会想，这招有很多人介绍过了，而且破解的方法也有很多。但我那里要说的是另一种方法，而且我试了很多方法都没有能破解。具体如下： <script> function stop(){ alert("禁止拷贝! \n\nProhibit copy!"); return false; } document.oncontextmenu=stop; </script> 你可以按右键、shift+F10和右ctrl左边的那个键试试！看能不能解。^_^</body> 2、屏蔽左键选定内容 我们已经禁了右键，但是人家还是可以用左键来选中文字来复制，通过下面屏蔽左键代码： <SCRIPT LANGUAGE=javascript> function click() { alert('禁止拷贝! \n\nProhibit copy!') } function click1() { if (event.button==2) {alert('禁止拷贝! \n\nProhibit copy!') }} function CtrlKeyDown(){ if (event.ctrlKey) {alert('禁止拷贝! \n\nProhibit copy!') }} document.onkeydown=CtrlKeyDown; document.onselectstart=click; document.onmousedown=click1; </SCRIPT> 3、禁止另存为 经过上面的两步好像你的源源代码已经安全了，但别忘了，别人还可以将你的界面保存下来，再慢慢解析。不过别担心，下面我们来解决这个问题。 在你要保密的网页中加入以下源代码： <noscript> <iframe src="*.htm"></iframe> </noscript> 4. 对于单张图片 同样可以禁止右键 <img src="http://www.yuzhiguo.com/logo.gif" oncontextmenu="event.returnValue=false" /> 引用：http://www.yuzhiguo.com/articleview.asp?id=183
*********************加密解密类********************
JS URL中的加密和解密
一次项目中遇到的情况是，用js代码获取URL中的参数，参数中含有中文字符，然后再给网页中的标签赋值的时候，就会出现乱码的问题，
然后想到了先在网页转向时对URL加密，然后获取的时候进行解密的方法来解决
js url加密解密 js对文字进行编码涉及3个函数：escape,encodeURI,encodeURIComponent，相应3个解码函数：unescape,decodeURI,decodeURIComponent 1、 传递参数时需要使用encodeURIComponent，这样组合的url才不会被#等特殊字符截断。 例如：<script language="javascript">document.write('<a href="http://passport.baidu.com/?logout&aid=7&u='+encodeURIComponent("http://cang.baidu.com/bruce42")+'">退出</a>');</script> 2、 进行url跳转时可以整体使用encodeURI 例如：Location.href=encodeURI("http://cang.baidu.com/do/s?word=百度&ct=21"); 3、 js使用数据时可以使用escape 例如：搜藏中history纪录。 4、 escape对0-255以外的unicode值进行编码时输出%u****格式，其它情况下escape，encodeURI，encodeURIComponent编码结果相同。 引用：:http://www.cnblogs.com/zgaspnet/archive/2012/05/09/2491728.html
MD5
var hexcase = 0; var b64pad = ""; var chrsz = 8; function hex_md5(s){ return binl2hex(core_md5(str2binl(s), s.length * chrsz));} function b64_md5(s){ return binl2b64(core_md5(str2binl(s), s.length * chrsz));} function hex_hmac_md5(key, data) { return binl2hex(core_hmac_md5(key, data)); } function b64_hmac_md5(key, data) { return binl2b64(core_hmac_md5(key, data)); } function calcMD5(s){ return binl2hex(core_md5(str2binl(s), s.length * chrsz));} function md5_vm_test() { return hex_md5("abc") == "900150983cd24fb0d6963f7d28e17f72"; } function core_md5(x, len) { x[len >> 5] |= 0x80 << ((len) % 32); x[(((len + 64) >>> 9) << 4) + 14] = len; var a = 1732584193; var b = -271733879; var c = -1732584194; var d = 271733878; for(var i = 0; i < x.length; i += 16) { var olda = a; var oldb = b; var oldc = c; var oldd = d; a = md5_ff(a, b, c, d, x[i+ 0], 7 , -680876936); d = md5_ff(d, a, b, c, x[i+ 1], 12, -389564586); c = md5_ff(c, d, a, b, x[i+ 2], 17, 606105819); b = md5_ff(b, c, d, a, x[i+ 3], 22, -1044525330); a = md5_ff(a, b, c, d, x[i+ 4], 7 , -176418897); d = md5_ff(d, a, b, c, x[i+ 5], 12, 1200080426); c = md5_ff(c, d, a, b, x[i+ 6], 17, -1473231341); b = md5_ff(b, c, d, a, x[i+ 7], 22, -45705983); a = md5_ff(a, b, c, d, x[i+ 8], 7 , 1770035416); d = md5_ff(d, a, b, c, x[i+ 9], 12, -1958414417); c = md5_ff(c, d, a, b, x[i+10], 17, -42063); b = md5_ff(b, c, d, a, x[i+11], 22, -1990404162); a = md5_ff(a, b, c, d, x[i+12], 7 , 1804603682); d = md5_ff(d, a, b, c, x[i+13], 12, -40341101); c = md5_ff(c, d, a, b, x[i+14], 17, -1502002290); b = md5_ff(b, c, d, a, x[i+15], 22, 1236535329); a = md5_gg(a, b, c, d, x[i+ 1], 5 , -165796510); d = md5_gg(d, a, b, c, x[i+ 6], 9 , -1069501632); c = md5_gg(c, d, a, b, x[i+11], 14, 643717713); b = md5_gg(b, c, d, a, x[i+ 0], 20, -373897302); a = md5_gg(a, b, c, d, x[i+ 5], 5 , -701558691); d = md5_gg(d, a, b, c, x[i+10], 9 , 38016083); c = md5_gg(c, d, a, b, x[i+15], 14, -660478335); b = md5_gg(b, c, d, a, x[i+ 4], 20, -405537848); a = md5_gg(a, b, c, d, x[i+ 9], 5 , 568446438); d = md5_gg(d, a, b, c, x[i+14], 9 , -1019803690); c = md5_gg(c, d, a, b, x[i+ 3], 14, -187363961); b = md5_gg(b, c, d, a, x[i+ 8], 20, 1163531501); a = md5_gg(a, b, c, d, x[i+13], 5 , -1444681467); d = md5_gg(d, a, b, c, x[i+ 2], 9 , -51403784); c = md5_gg(c, d, a, b, x[i+ 7], 14, 1735328473); b = md5_gg(b, c, d, a, x[i+12], 20, -1926607734); a = md5_hh(a, b, c, d, x[i+ 5], 4 , -378558); d = md5_hh(d, a, b, c, x[i+ 8], 11, -2022574463); c = md5_hh(c, d, a, b, x[i+11], 16, 1839030562); b = md5_hh(b, c, d, a, x[i+14], 23, -35309556); a = md5_hh(a, b, c, d, x[i+ 1], 4 , -1530992060); d = md5_hh(d, a, b, c, x[i+ 4], 11, 1272893353); c = md5_hh(c, d, a, b, x[i+ 7], 16, -155497632); b = md5_hh(b, c, d, a, x[i+10], 23, -1094730640); a = md5_hh(a, b, c, d, x[i+13], 4 , 681279174); d = md5_hh(d, a, b, c, x[i+ 0], 11, -358537222); c = md5_hh(c, d, a, b, x[i+ 3], 16, -722521979); b = md5_hh(b, c, d, a, x[i+ 6], 23, 76029189); a = md5_hh(a, b, c, d, x[i+ 9], 4 , -640364487); d = md5_hh(d, a, b, c, x[i+12], 11, -421815835); c = md5_hh(c, d, a, b, x[i+15], 16, 530742520); b = md5_hh(b, c, d, a, x[i+ 2], 23, -995338651); a = md5_ii(a, b, c, d, x[i+ 0], 6 , -198630844); d = md5_ii(d, a, b, c, x[i+ 7], 10, 1126891415); c = md5_ii(c, d, a, b, x[i+14], 15, -1416354905); b = md5_ii(b, c, d, a, x[i+ 5], 21, -57434055); a = md5_ii(a, b, c, d, x[i+12], 6 , 1700485571); d = md5_ii(d, a, b, c, x[i+ 3], 10, -1894986606); c = md5_ii(c, d, a, b, x[i+10], 15, -1051523); b = md5_ii(b, c, d, a, x[i+ 1], 21, -2054922799); a = md5_ii(a, b, c, d, x[i+ 8], 6 , 1873313359); d = md5_ii(d, a, b, c, x[i+15], 10, -30611744); c = md5_ii(c, d, a, b, x[i+ 6], 15, -1560198380); b = md5_ii(b, c, d, a, x[i+13], 21, 1309151649); a = md5_ii(a, b, c, d, x[i+ 4], 6 , -145523070); d = md5_ii(d, a, b, c, x[i+11], 10, -1120210379); c = md5_ii(c, d, a, b, x[i+ 2], 15, 718787259); b = md5_ii(b, c, d, a, x[i+ 9], 21, -343485551); a = safe_add(a, olda); b = safe_add(b, oldb); c = safe_add(c, oldc); d = safe_add(d, oldd); } return Array(a, b, c, d); } function md5_cmn(q, a, b, x, s, t) { return safe_add(bit_rol(safe_add(safe_add(a, q), safe_add(x, t)), s),b); } function md5_ff(a, b, c, d, x, s, t) { return md5_cmn((b & c) | ((~b) & d), a, b, x, s, t); } function md5_gg(a, b, c, d, x, s, t) { return md5_cmn((b & d) | (c & (~d)), a, b, x, s, t); } function md5_hh(a, b, c, d, x, s, t) { return md5_cmn(b ^ c ^ d, a, b, x, s, t); } function md5_ii(a, b, c, d, x, s, t) { return md5_cmn(c ^ (b | (~d)), a, b, x, s, t); } function core_hmac_md5(key, data) { var bkey = str2binl(key); if(bkey.length > 16) bkey = core_md5(bkey, key.length * chrsz); var ipad = Array(16), opad = Array(16); for(var i = 0; i < 16; i++) { ipad[i] = bkey[i] ^ 0x36363636; opad[i] = bkey[i] ^ 0x5C5C5C5C; } var hash = core_md5(ipad.concat(str2binl(data)), 512 + data.length * chrsz); return core_md5(opad.concat(hash), 512 + 128); } function safe_add(x, y) { var lsw = (x & 0xFFFF) + (y & 0xFFFF); var msw = (x >> 16) + (y >> 16) + (lsw >> 16); return (msw << 16) | (lsw & 0xFFFF); } function bit_rol(num, cnt) { return (num << cnt) | (num >>> (32 - cnt)); } function str2binl(str) { var bin = Array(); var mask = (1 << chrsz) - 1; for(var i = 0; i < str.length * chrsz; i += chrsz) bin[i>>5] |= (str.charCodeAt(i / chrsz) & mask) << (i%32); return bin; } function binl2hex(binarray) { var hex_tab = hexcase ? "0123456789ABCDEF" : "0123456789abcdef"; var str = ""; for(var i = 0; i < binarray.length * 4; i++) { str += hex_tab.charAt((binarray[i>>2] >> ((i%4)*8+4)) & 0xF) + hex_tab.charAt((binarray[i>>2] >> ((i%4)*8 )) & 0xF); } return str; } function binl2b64(binarray) { var tab = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; var str = ""; for(var i = 0; i < binarray.length * 4; i += 3) { var triplet = (((binarray[i >> 2] >> 8 * ( i %4)) & 0xFF) << 16) | (((binarray[i+1 >> 2] >> 8 * ((i+1)%4)) & 0xFF) << 8 ) | ((binarray[i+2 >> 2] >> 8 * ((i+2)%4)) & 0xFF); for(var j = 0; j < 4; j++) { if(i * 8 + j * 6 > binarray.length * 32) str += b64pad; else str += tab.charAt((triplet >> 6*(3-j)) & 0x3F); } } return str; }
调用： var strEn=hex_md5('123456');
*********************字符类********************
中英文判断 字符长度获取 字符截取
/*判断是否是中文*/ isChinese: function (str) { //判断是不是中文 //var reCh=/[u00-uff]/; //return !reCh.test(str); return ! /^[\x00-\xff]/.test(str); }, /*获取字符长度（含中英文）*/ lenStat: function (target) { var strlen = 0; //初始定义长度为0 var txtval = $.trim(target); for (var i = 0; i < txtval.length; i++) { if (IM.isChinese(txtval.charAt(i)) == true) { strlen = strlen + 2;//中文为2个字符 } else { strlen = strlen + 1;//英文一个字符 } } strlen = Math.ceil(strlen / 2);//中英文相加除2取整数 return strlen; }, /* *截取字符长度 *param target：待截取的文字 *param length：需要截取的长度(以英文字符长度为准) */ cutstr: function (target, length) { var strlen = 0; //初始定义长度为0 var txtval = $.trim(target); var resultValue = ""; for (var i = 0; i < txtval.length; i++) { if (IM.isChinese(txtval.charAt(i)) == true) { strlen = strlen + 2;//中文为2个字符 if (strlen <= length) { resultValue = resultValue + txtval.charAt(i); } } else { strlen = strlen + 1;//英文一个字符 if (strlen <= length) { resultValue = resultValue + txtval.charAt(i); } } } if (strlen > length) { return resultValue + "..."; } else { return resultValue; } },
十六进制unicode与中文字符的相互转化
<script type="text/javascript"> $(function () { var hanzi="好好学习，天天向上"; var unicode=tounicode(hanzi); console.log('unicode:'+unicode); var hanzi2=tohanzi(unicode); console.log('hanzi2:'+hanzi2); }) function tounicode(data) { if (data == '') return '请输入汉字'; var str = ''; for (var i = 0; i < data.length; i++) { str += "\\u" + parseInt(data[i].charCodeAt(0), 10).toString(16); } return str; } function tohanzi(data) { if (data == '') return '请输入十六进制unicode'; data = data.split("\\u"); var str = ''; for (var i = 0; i < data.length; i++) { str += String.fromCharCode(parseInt(data[i], 16).toString(10)); } return str; } </script>
