JS替换value内容

修改value

<!DOCTYPE html>

<html>

    <head>

        <meta charset="UTF-8">

        <title>修改value</title>

    </head>

    <body>

 

        <input type="text" name="pay[money]" value="Hello krray">

        <script>

            var a=document.getElementsByName("pay[money]")[0];//document.getElementsByName

alert( a.value);

            a.value="你好,小凯"

var a="http://idc.wupen.cn/?c=user&amp;a=indexg[|"

var b=a.replace(/[ \amp;\\\*^%$#@\-]/g,"");

alert(b);

        </script>

    </body>

</html>