Question

这很简单，但是当我执行网络时，根本就没有警报！我只是像youtube的视频那样做，但是当我想和他做同样的事情时没有回应。

// this is my html 
<!DOCTYPE html>
<html>
<head>
<link rel="stylesheet" href="shiyan.css">
</head>
<body>
<header>
<h1>Javascript Event</h1>
</header>

<main>
<h4> Add Numbers:</h4>
<p>
  <input id = "num-one"> + <input id = "num-two">
</p>
<p id = "add-sum"></p>
</main>

<script src="shiyan.js"></script>
</body>
</html>

//here is my shiyan.js in the same file of html
var numOne = document.getElementById("num-one");
var numTwo = document.getElementById("num-two");
var addSum = document.getElementById("add-sum");

numOne.addEventListener("click ", function(){

  alert("hahahahaa");
});

Answer 1

摆脱click

中的迷路空间

numOne.addEventListener("click", function(){
  alert("hahahahaa");
});

为什么没有回应？

1 个答案: