<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title></title>
</head>
<body>
<input id="text" type="text"/>
<input type="button" value="去除空格" onclick="trimstr()" />
<script type="text/javascript">
function trimstr(str){
return str.replace(/(^\s*)|(\s*$)/g,"")
}
function trimstr(){
var str=document.getElementById("text").value;
console.log(str.length);
console.log(trimstr(str).length);
}
</script>
</body>
</html>
_潇潇暮雨
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