javascript正则表达式验证用户名

Question

要求用户名可以是数字、字母、汉字，其他的字符都不允许，怎么写？看书写了几次都不对

Answer 1

<script type="text/javascript">
   var p = /^(?=.*\d)(?=.*[a-zA-Z])(?=.*[\u4e00-\u9fa5]).*$/ 
   var arr=["asdf汉字","1a^","1A","11","1a2A","a1b2c汉字","a1汉字b2cA"]
   for(var i=0;i<arr.length;i++){
document.write(arr[i].replace(" ","&nbsp;")+":"+p.test(arr[i])+"<br/>");
   }
</script>

Answer 2

一时搞错，再来<script type="text/javascript">
   var p = /^(?=.*\d)(?=.*[a-zA-Z])(?=.*[\u4e00-\u9fa5])[\da-zA-Z\u4e00-\u9fa5]+$/ 
   var arr=["asdf汉字","1a^","1A","11","1a2A","a1b2c汉字","a1汉字b2cA!"]
   for(var i=0;i<arr.length;i++){
document.write(arr[i].replace(" ","&nbsp;")+":"+p.test(arr[i])+"<br/>");
   }
</script>

Answer 3

哦，我那个是三者都一定要输入了，结合2楼的话用/^[a-zA-Z0-9\u4E00-\u9FFF]+$/吧

Answer 4

var reg = /^[a-zA-Z\d\u4e00-\u9fa5]+$/i;

Answer 5

var usernameRegExp="/^([\u4E00-\u9FA5]|[\uFE30-\uFFA0]|[_\a-zA-Z]|[\s])*$/gi"
用这个试试，应该能搞定