Email地址加密javascript版_javascript技巧

function getEmail(email)
{
    var r = "";
    for (i=0;i<email.length;i++)
    {
        r += "&#" + email.charCodeAt(i);
    }
    return r;
}
效果如下：

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=gb2312" /> <title>Email地址加密</title> <style type="text/css">  </style> <script language="javascript" type="text/javascript">     function getEmail(email)     {         var r = "";         for (i=0;i<email.length;i++)         {             r += "&#" + email.charCodeAt(i);         }         return r;     }           function setClipboard(id)     {         var tb = document.getElementById(id);         var copytext = tb.value;         if (copytext!="")         {             if (window.clipboardData)             {                 window.clipboardData.setData("Text", copytext);                 alert("已复制到剪贴板。");             }             else if (window.netscape)             {                 setClipboardNetscape(copytext);                 alert("已复制到剪贴板。");             }         }         return false;     }          function setClipboardNetscape(text){         var url = [             'data:text/html;charset=utf-8;base64,PGJvZHk+PC9ib2',             'R5PjxzY3JpcHQgdHlwZT0idGV4dC9qYXZhc2NyaXB0Ij4KKGZ1',             'bmN0aW9uKGVuY29kZWQpe3ZhciBzd2ZfZGF0YSA9IFsKICdkYX',             'RhOmFwcGxpY2F0aW9uL3gtc2hvY2t3YXZlLWZsYXNoO2Jhc2U2',             'NCxRMWRUQjJ3JywKICdBQUFCNG5EUGdZbGpBd01qSTRNejAlMk',             'YlMkY5JTJGZTJaZkJnYUdhV3dNRE1uNUthJywKICdrTU10TjRH',             'ZGdaZ1NJTXdaWEZKYW01UUFFJTJCQm9iaTFCTG5uTXlDcFB6RW',             '9oU0dJJywKICdQRnAlMkZBeHNEREJRa3BGWkRGUUZGQ2d1eVM4',             'QXlqSTRBRVVCaXkwVndBJTNEJTNEJwpdLmpvaW4oIiIpOwpkb2',             'N1bWVudC5ib2R5LmlubmVySFRNTCA9IFsKICc8ZW1iZWQgc3Jj',             'PSInLHN3Zl9kYXRhLCciICcsCiAnRmxhc2hWYXJzPSJjb2RlPS',             'csZW5jb2RlZCwnIj4nLAogJzwvZW1iZWQ+JwpdLmpvaW4oIiIp',             'Owp9KSgi',             base64encode( encodeURIComponent(text) + '")</'+'script>')         ].join("");         var tmp = document.createElement("div");         tmp.innerHTML = [              '<iframe src="',url,'"'             ,' width="0" height="0">'             ,'</iframe>'         ].join("");         with(tmp.style){             position ="absolute";             left = "-10px";             top  = "-10px";             visibility = "hidden";         };         document.body.appendChild(tmp);         setTimeout(function(){document.body.removeChild(tmp)},1000);         function base64encode(str){             var Chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/".split("");             var c1, c2, c3;             var buf = [];             var len = str.length;             var i = 0;             while(i < len){                 c1 = str.charCodeAt(i) & 0xff;                 c2 = str.charCodeAt(i+1);                 c3 = str.charCodeAt(i+2);                 buf.push(Chars[(c1 >> 2)]);                 if(i+1 == len){                     buf.push(Chars[(c1 & 0x3) << 4],"==");                     break;                 }                 buf.push(Chars[((c1 & 0x3) << 4) | ((c2 & 0xF0) >> 4)]);                 if(i+2 == len){                     buf.push(Chars[(c2 & 0xF) << 2],"=");                     break;                 }                 buf.push(                     Chars[((c2 & 0xF) << 2) | ((c3 & 0xC0) >> 6)],                     Chars[(c3 & 0x3F)]                 );                 i+=3;             }             return buf.join("")         }     } </script>     </head> <body> <p><strong>Email地址加密</strong><span style="display:none">hKeHTML5中文学习网 - HTML5先行者学习网</span></p> <p>   Email:     <input name="email" type="text" id="email" size="50" />   <input type="button" name="Submit" value=" 加 密 " onclick="document.getElementById('export').value=getEmail(document.getElementById('email').value)"/>      <input type="button" name="Submit2" value=" 验 证 " onclick="document.getElementById('preview').innerHTML=getEmail(document.getElementById('email').value)"/>  <span id="preview" style="color:#FF0000"></span > <span style="display:none">hKeHTML5中文学习网 - HTML5先行者学习网</span></p> <p>   结 果:     <input name="export" type="text" id="export" size="76" onclick="setClipboard(this.id)" onmouseover="javascript:this.select();" title="单击此处复制内容"/> <span style="display:none">hKeHTML5中文学习网 - HTML5先行者学习网</span></p> <p>    <span style="display:none">hKeHTML5中文学习网 - HTML5先行者学习网</span></p> </body> </html>

[Ctrl+A 全选注:如需引入外部Js需刷新才能执行]

Email地址加密javascript版_javascript技巧_