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我是JavaScript新手，嘗試進行表單驗證。表單驗證？
我不知道我在做什麼錯在這裏有任何提示？
<HTML>
<HEAD>
<TITLE>Comment Form</TITLE>
<script type ="text/javascript">
function Validate() {
}
Message = ""
Message = Message + CheckName()
Message = Message + CheckEmail()
Message = Message + CheckComments()
if (Message =="") {
return true
}
else {
alert(Message)
return false
}
}
funtion CheckName()
UserName = document.f1.Name.value
if(UserName =="") {
Message ="Please enter your name"
}
else
Message=""
}
return Message
}
//檢查電子郵件：
function CheckEmail() {
email = document.f1.Email.value
AtPos = email.indexOf("@")
StopPos = email.lastIndexOf(".")
Message = ""
if (email == "") {
Message = "Not a valid Email address" + "\n"
}
//if blank:
if (AtPos == -1 || StopPos == -1) {
Message = "Not a valid email address"
}
//if no @ and no .
if (StopPos < AtPos) {
Message = "Not a valid email address"
}
//if . before @
if (StopPos - AtPos == 1) {
Message = "Not a valid email address"
}
return Message
}
有可能從東西到底腳本以下部分缺失？ 我需要在動作區域放置什麼東西？它只是要求我提供更多的文字，我只想填補空間的意義。是否有其他方法來實現我在這裏要做的事情？這是過時的方法嗎？
</script>
</HEAD>
<BODY BGCOLOR = White>
<form name="f1" method="post" action="" onSubmit="return Validate()" enctype = text/plain>
<table width="672" border="0" cellpadding="0" cellspacing="0">
<tr>
<td width="142" valign="top" rowspan="4"> </td>
<td valign="top" height="45" colspan="4" align="center"> <b>Name:</b>
<input type="text" name="Name" size="30">
</td>
</tr>
<tr>
<td height="40" valign="top" colspan="4" align="center"><b>Email:
<input type="text" name="Email" size="30">
<td height="151" valign="top" colspan="4" align="center">
<textarea name="Comments" cols="40" rows="7">Add Your Comments here</textarea>
</td>
</tr>
</form>
</BODY>
</HTML>
你已經編寫了代碼**之外的代碼驗證**，它現在是空的。 –