复制到一个html中就能使用，这里小记录一下。
<HTML><head><title>汉字转unicode|unicode转汉字</title><style type="text/css"><!--td {color: #FF9900}A { COLOR: #66CC22; TEXT-DECORATION: none}A:hover { COLOR: #ff0000; TEXT-DECORATION: none}.gree {color: #66CC33}.btn {font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 12px; color: #666666; text-align: left; text-decoration: none; display: block; overflow: visible; margin-right: 10px; margin-left: 10px; }--></style></head><body ><table width="728" height="54" border="0" align="center" cellpadding="0" cellspacing="1" > <tr> <td height="52"><table width="726" height="46" border="0" cellpadding="0" cellspacing="0"> <tr align="center"> <td> <TABLE style="MARGIN-TOP: 6px" cellSpacing=0 cellPadding=0 width="100%" border=0> <TR> <TD width="774" vAlign=top style="PADDING-RIGHT: 6px; PADDING-LEFT: 6px"><h2 align="center"> unicode转化汉字 汉字转化unicode编码</h2> <hr size="1"> <CENTER><TEXTAREA name="source" cols="100" rows="14" id="source">\u7D2B\u964Cl\u7EA4\u5C18\u7684\u4E13\u680F\uFF0C\u6700\u7F8E\u4E0D\u8FC7\u5E73\u6DE1\uFF0C\u6700\u771F\u4E0D\u8FC7\u5E73\u51E1\u3002</TEXTAREA></CENTER> <BR> <CENTER> <table width="400" border="0" cellspacing="2"> <tr> <td><span class="btn"><a href="javascript:action('CONVERT_FMT1')"> <strong>转化成为：<br> </strong>&#xxxx </a></span></td> <td><span class="btn"><a href="javascript:action('CONVERT_FMT2')"> <strong>转化成为unicode字符：<br> </strong> \uxxxx </a></span></td> <td><span class="btn"><a href="javascript:action('RECONVERT')"> <strong>转化为汉字：<br> </strong> ::WV </a></span></td> </tr> </table> <p> <div id="tt" style="display:none"></div> <textarea name="show2" rows="14" id="show2" cols="100"></textarea> </p> <P style="MARGIN-TOP: 0px"> </P> </CENTER></TD> <TD noWrap width=1></TD> </TR> </TABLE> </td> </tr> </table></td> </tr></table><br></BODY><script language="javascript" type="text/javascript"> var oSource = document.getElementById("source"); var oShow2 = document.getElementById("show2"); var oTt = document.getElementById("tt"); function action(pChoice){ switch(pChoice){ case "CONVERT_FMT1": oShow2.value = ascii(oSource.value); break; case "CONVERT_FMT2": oShow2.value = unicode(oSource.value); break; case "RECONVERT": oShow2.value = reconvert(oSource.value); break; } } function ascii(str){ return str.replace(/[^\u0000-\u00FF]/g,function($0){return escape($0).replace(/(%u)(\w{4})/gi,"\&#x$2;")}); } function unicode(str){ return str.replace(/[^\u0000-\u00FF]/g,function($0){return escape($0).replace(/(%u)(\w{4})/gi,"\\u$2")}); } function reconvert(str){ str = str.replace(/(\\u)(\w{4})/gi,function($0){ return (String.fromCharCode(parseInt((escape($0).replace(/(%5Cu)(\w{4})/g,"$2")),16))); }); str = str.replace(/(&#x)(\w{4});/gi,function($0){ return String.fromCharCode(parseInt(escape($0).replace(/(%26%23x)(\w{4})(%3B)/g,"$2"),16)); }); return str; } </script></HTML>
