JS检查Email格式
function check()
{
if(document.getElementById("email").value.length!=0)
{
if (document.getElementById("email").value.charAt(0)=='.' ||
document.getElementById("email").value.charAt(0)=='@'||
document.getElementById("email").value.indexOf('@', 0) == -1 ||
document.getElementById("email").value.indexOf('.', 0) == -1 ||
document.getElementById("email").value.lastIndexOf('@')==document.register.email.value.length-1 ||
document.getElementById("email").value.lastIndexOf('.')==document.register.email.value.length-1)
{
alert('Email的格式不正确!');
document.getElementById("email").focus();
return false;
}
}
else
{
alert('Email的不能为空!');
document.getElementById("email").focus();
return false;
}
return false;
}
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Tags: email