javascript pattern只允许数字，英文字母和一些特殊字符
<script type="text/javascript"> var emailPattern = /^[a-zA-Z0-9._-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,4}$/; var chPattern = /^[A-Za-z0-9 \!\@\#\$\^\&\*\-\_\+\=\:\\\'\;\,\.\/\?\(\)\{\}\[\]\<\>]*$/; var s = "yang Hua Jie qwe231@[]"; alert(chPattern.test(s) );</script>??