<body>
地址:<input type="text" name="address" required="required" onblur = "dizhi(this)"></td>
</body>
<script type="text/javascript">
function dizhi(str)
{
//格式 RegExp("[在中间定义特殊过滤字符]")
var pattern = new RegExp("[%--`~!@#$^&*()=|{}':;',\\[\\].<>/?~!@#¥……&*()——| {}【】‘;:”“'。,、?]")
var s = str.value;
var rs = "";
for (var i = 0; i < s.length; i++) {
rs = rs+s.substr(i, 1).replace(pattern, '');
}
str.value = rs;
};
</script>