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<html> <head> <title>test</title> <script language="javascript"> function emailCheck () { var emailStr=document.all.form1.tel.value; alert(emailStr); var emailPat=/^(.+)@(.+)$/; var matchArray=emailStr.match(emailPat); if (matchArray==null) { alert("电子邮件地址必须包括 ( @ 和 . )") return false; } return true; } </script> </head>
<body> <form name="form1"> <input type="text" name="tel"/> <input type="button" value="press" onclick="emailCheck()"/> </form>
</span> </body> </html>
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