JavaScript HTML DOM 事件

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当用户在<h1>元素上点击时，会改变其内容。

<html><head><title>点击改变内容</title></head><body><h1 onclick = "this.innerHTML = '谢谢'">点击我</h1></body></html>

<html><head><title>点击改变内容</title><script>function changetxt(id){id.innerHTML = "Thankyou!";}</script></head><body><h1 onclick = "changetxt(this)">点击我</h1></body></html>

<html><body><P>点击按钮就可以执行<em>displayDate()</em>函数。</P><button onclick = "displayDate()">点击这里</button><script>function displayDate(){document.getElementById("demo").innerHTML = Date();}</script><p id = "demo"></p></body></html>

<html><body><P>点击按钮就可以执行<em>displayDate()</em>函数。</P><button id = "demo">点击这里</button><script>document.getElementById("demo").onclick = function(){displayDate();}function displayDate(){document.getElementById("dem").innerHTML = Date();}</script><p id = "dem"></p></body></html>

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