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  • Email地址验证

    <script>
    function validateForm(){
    var x=document.forms["myForm"]["email"].value;
    var atpos=x.indexOf("@");
    var dotpos=x.lastIndexOf(".");
    if (atpos<1 || dotpos<atpos+2 || dotpos+2>=x.length){
    alert("不是一个有效的 e-mail 地址");
    return false;
    }
    }
    </script>
    </head>
    <body>

    <form name="myForm" action="demo-form.php" onsubmit="return validateForm();" method="post">
    Email: <input type="text" name="email">
    <input type="submit" value="提交">
    </form>

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  • 原文地址:https://www.cnblogs.com/UnfetteredMan/p/13047797.html
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