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<!DOCTYPE html>
<html>
<title>JavaScript switch Case语句示例 - 基础教程(div.cn)</title>
<body>
<p>输入1到5之间的数字。</p>
<p>如果省略break,程序将在switch语句中的下一条语句处继续执行:</p>
<input type="text" onkeyup="myFunc()">
<p id="para"></p>
<script>
function myFunc() {
var num = Number(document.querySelector("input").value);
var text;
switch (num) {
case 1:
text = "您输入的号码是 1";
case 2:
text = "您输入的号码是 2";
case 3:
text = "您输入的号码是 3";
case 4:
text = "您输入的号码是 4";
case 5:
text = "您输入的号码是 5";
default:
text = "执行默认语句";
}
document.getElementById('para').innerHTML = text;
}
</script>
</body>
</html>