<!DOCTYPE HTML><html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>switch</title><script type="text/JavaScript">function a(){? ??var b=prompt("輸入數字");switch(b){?case 1:?case 2:? alert("學習理念知識");?break;???case 3:?case 4:?document.write("到企業實踐");?break;??case 5:?document.write("總結經驗");?break;??case 6:?case 7:?document.write("周六、日休息和娛樂");?break;?default:}}</script></head><body>? ? <input type="button" name="按鈕" value="點擊" onclick="a()"></body></html>
哪里出問題了，為什么跑不了
陽火鍋
2017-12-12 15:15:18
