JS Chinese characters and Unicode encoding are exchanged Unicode encryption Unicode decryption

Little scum · Posted on 9/7/2015 10:40:05 AM

Js realizes the interconversion of Chinese characters and Unicode encoding, which can realize Unicode encryption and Unicode decryption. You can save this code as an HTML page and upload it to your website, so that your website can provide text and Unicode encoding conversion capabilities.

<title>汉字和Unicode编码互转</title>
<scrip{过滤}t Language=Javascrip{过滤}t>
var classObj=
{
ToUnicode:function(str)
{
return escape(str).replace(/%/g,"\").toLowerCase();
},
UnUnicode:function(str)
{
return unescape(str.replace(/\\/g, "%"));
},
copyingTxt:function(str)
{
document.getElementById(str).select();
document.execCommand("Copy");
}
}
</scrip{过滤}t>
<textarea id=codes style="width:500px;height:300px"></textarea><br><br>
<input type=button value=Unicode加密 onclick=javascrip{过滤}t:codes.value=classObj.ToUnicode(codes.value)>
<input type=button value=Unicode解密 onclick=javascrip{过滤}t:codes.value=classObj.UnUnicode(codes.value)>
<input type=button value=复制文本 onclick=javascrip{过滤}t:classObj.copyingTxt("codes")>
<input type=button value=清空内容 onclick=javascrip{过滤}t:codes.value="">

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Little scum · Posted on 9/7/2015 11:22:38 AM

The above method will decode the numbers with errors

\u9519\u8bef\u8d85\u8fc7\u35\u6b21\uff0c\u5173\u95ed\u6d4f\u89c8\u5668\u91cd\u65b0\u767b\u5f55\uff01

With the following methods, such problems will not occur:

function reconvert(str){
str = str.replace(/(\\u)(\w{1,4})/gi,function($0){
return (String.fromCharCode(parseInt((escape($0).replace(/(%5Cu)(\w{1,4})/g,"$2")),16)));
});
str = str.replace(/(&#x)(\w{1,4});/gi,function($0){
return String.fromCharCode(parseInt(escape($0).replace(/(%26%23x)(\w{1,4})(%3B)/g,"$2"),16));
});
str = str.replace(/(&#)(\d{1,6});/gi,function($0){
return String.fromCharCode(parseInt(escape($0).replace(/(%26%23)(\d{1,6})(%3B)/g,"$2")));
});
return str;
}

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[JavaScript] JS Chinese characters and Unicode encoding are exchanged Unicode encryption Unicode decryption

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