编码转换源码

html
<html>
<head>
<meta charset="utf-8"/>
<title>转换工具</title>
</head>
<body>
<div>
<h3>Unicode编码转换</h3><br/>
编码前：<textarea id="unicode_convert_plaintext"></textarea>
编码后：<textarea id="unicode_convert_encoded"></textarea>
<select id="slc_unicode_prefix">
	<option value="%">%</option>
	<option value="\">\</option>
</select>
<input type="button" value="编码" id="btn_unicode_encode" />
<input type="button" value="解码" id="btn_unicode_decode" />
</div>
</body>
<script>
window.addEventListener("click",function(e){
	switch(e.target.id){
		case "btn_unicode_encode":
			var inputStr = document.getElementById("unicode_convert_plaintext").value;
			var encodePrefix = document.getElementById("slc_unicode_prefix").value;
			var encodedStr = unicodeEncode(inputStr, encodePrefix);
			document.getElementById("unicode_convert_encoded").value=encodedStr;
			break;
		case id="btn_unicode_decode" :
			var inputStr = document.getElementById("unicode_convert_encoded").value;
			var decodedStr = unicodeDecode(inputStr);
			document.getElementById("unicode_convert_plaintext").value=decodedStr;
			break;
	}
});
function unicodeEncode(str, prefix){
	var outstr=""; 
	for(var i =0;i<str.length;i++) {
		var thisChar=str.charCodeAt(i).toString(16); 
		var thisCharLength = thisChar.length;
		for(var padp=0;padp<4-thisCharLength;padp++) {
			thisChar = "0"+thisChar;
		}
		outstr = outstr + prefix+"u"+thisChar;
	}
	return outstr;
}
function unicodeDecode(str){
	return unescape(str.replace(/\\u/g,'%u'));
}

</script>
</html>
编码转换源码 ​

编码转换源码
