【发布时间】:2018-10-02 00:40:55
【问题描述】:
这里是菜鸟。 我想从一些文本中创建一个变量,这样当我点击它时,旧文本就会变成新文本。
<!DOCTYPE html>
<html>
<body>
<h1 id="id01">THis is the old text</h1>
<p>Click on "My Button" to display its value attribute.</p>
<button id="myBtn" name="myname" value="myvalue"
onclick="alert(this.value)">My Button</button>
<p>Click on "Try it" to change the value attribute of "My Button".</p>
<button onclick="myFunction()">Try it</button>
<p><b>Tip:</b> Click on "My Button" before and after you have clicked on
"Try it".</p>
<script>
function myFunction() {
document.getElementById("myBtn").value = "newButtonValue";
document.getElementById("id01").value = "this is the new text";
}
</script>
</body>
</html>
这是我使用的第一个示例,但 var = 会是更好的选择。
【问题讨论】:
标签: javascript jquery html button text