<form>
用戶名:<input type="text" required value="" class="username"></input><br>
<br>
密碼:<input type="text" required value="" class="password"></input><br>
<br>
<button class="btn">登錄</button>
</form>
<script>
var form=document.querySelector("form")
var btn=document.querySelector(".btn")
var nameIpt=document.querySelector(".username")
var passIpt=document.querySelector(".password")
btn.onclick=function(e){
e=e || window.event
e.preventDefault()
var uName=nameIpt.value
var uPass=passIpt.value
}
</script>
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標籤:JavaScript
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