简单教程
提交运行
代码编辑器:
<p>单击按钮将段落中的“blue”替换成“red”</p> <p id="demo">Mr Blue has a blue house and a blue car.</p> <button onclick="myFunction()">点我</button> <script> function myFunction(){ var str=document.getElementById("demo").innerHTML; var n=str.replace(/blue/gi,"red"); document.getElementById("demo").innerHTML=n; } </script>
运行结果: