js如何获取当前页面字符编码 http //bbs 51js com/thread-75687-1-1 html

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<! DOCTYPE html PUBLIC  " -//W3C//DTD XHTML 1.0 Transitional//EN "   " http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd " >
< html xmlns = " http://www.w3.org/1999/xhtml " >
< head >
< meta http - equiv = " Content-Type "  content = " text/html; charset=utf-8 "   />
< title > 无标题文档 </ title >
</ head >

< body >
< script type = " text/javascript " >
var  re  =   /< meta. * charset = ([ ^ " ]+).*?>/i;
alert(document.documentElement.innerHTML.match(re)[1]);
</script>
</body>
</html>
            

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转载自blog.csdn.net/tduycc/article/details/84195688