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取得一定长度的内容，处理中文_javascript技巧

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Release： 2016-05-16 19:23:20
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复制代码 代码如下:

//字符 长度
function xLength(m,n)
{
if(m==null || m=="")return ""
var s=m.replace(/([^\x00-\xff])/g,"\x00$1");
return (s.length}
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取得一定长度的内容，处理中文
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