js验证邮箱格式
例子：验证邮箱输入的格式是否正确。
<script language="javascript" type="text/javascript" >/** * Check email format */function emailCheck(obj, labelName) {var objName = eval("document.all."+obj);var pattern = /^([\.a-zA-Z0-9_-])+@()+(\.)+/;if (!pattern.test(objName.value)) {alert("请输入正确的邮箱地址。");objName.focus();return false;}return true;}</script>email：<input type="text" id="email" name="email" maxlength="30"style="text-align: left; width:300px;" />
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