把中文标点替换成英文，全角标点替换成半角
今天遇到个中文和英文标点之间转换的问题
从网上找到一个解决方法记录下
<html>
<head>
<script language="javascript">
function ChineseToEnglish(txt)
{
var ChineseInterpunction = [ "“", "”", "‘", "’", "。", "，", "；", "：", "？", "！", "……", "—", "～", "（", "）", "《", "》" ];
var EnglishInterpunction = [ "\"", "\"", "'", "'", ".", ",", ";", ":", "?", "!", "…", "-", "~", "(", ")", "<", ">" ];
for (var j = 0; j < ChineseInterpunction.length; j++)
{
//alert("txt.replace("+ChineseInterpunction[j]+", "+EnglishInterpunction[j]+")");
var reg=new RegExp(ChineseInterpunction[j],"g");
txt = txt.replace(reg, EnglishInterpunction[j]);
}
alert(txt);
return txt;
}
//方法描述：把指定输入框中的全角字符转为半角字符，并在输入框失去焦点时自动改变输入框中的全角字符
//原理说明：
// 1、全角空格为12288，半角空格为32
// 2、其他字符半角(33-126)与全角(65281-65374)的对应关系是：均相差65248
function FullToDBC(obj){
var Str = obj.value;
var DBCStr = "";
Str = ChineseToEnglish(Str);
if(/.*[\u4e00-\u9fa5]+.*$/.test(Str)){
alert("含有汉字！");
}
for(var i = 0; i < Str.length; i++){
var c = Str.charCodeAt(i);
if(c == 12288){
DBCStr += String.fromCharCode(32);
continue;
}
if(c > 65280 && c < 65375){
DBCStr += String.fromCharCode(c - 65248);
continue;
}
DBCStr += String.fromCharCode(c);
}
obj.value = DBCStr;
}
</script>
</head>
<body>
<center>
<textarea id="testStr" rows="20" cols="120" onblur="FullToDBC(this);"></textarea>
</center>
</body>
</html>