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JavaScript to verify the legitimacy of the email

高洛峰
高洛峰Original
2016-11-26 14:45:121874browse

<script type="text/javascript">
 var sText = document.getElementById(&#39;mail&#39;).value;
//onblur 为控件失去焦点事件
 document.getElementById(&#39;mail&#39;).onblur = function sValue(){
  sText = this.value;
  var reMail =/^(?:[a-zA-Z0-9]+[_\-\+\.]?)*[a-zA-Z0-9]+@(?:([a-zA-Z0-9]+[_\-]?)*[a-zA-Z0-9]+\.)+([a-zA-Z]{2,})+$/;
  var s=new RegExp(reMail);
  if(s.test(sText))
 {alert("邮箱正确");}
  else//不正确清空
 {document.getElementById(&#39;mail&#39;).value="";}
 }
</script>


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