xxxxxxxxxx<html><head><meta charset="utf-8"><title>编程狮(w3cschool.cn)</title></head><body> <h2>JavaScript switch</h2><p id="demo"></p><script>var x = "0";switch (x) { case 0: text = "Off"; break; case 1: text = "On"; break; default: text = "未找到值";}document.getElementById("demo").innerHTML = text;</script></body></html>