大牛求教！?。。。?！
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>switch</title>
<script type="text/JavaScript">
function a1(){
var abc=prompt("今天是星期幾","123");
switch(abc);
{
?case 1:
?case 2:
?document.write("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");
?case 6:
case 7:????
?
?document.write("周六、日休息和娛樂");
?break;
?default:
??? alert("輸入不對啊")；
}}
</script>
</head>
<body>
<input type="button" value="做犀利" onClick="a1()">
</body>
</html>
2015-08-06
這里多了分號，刪去
?case?5: ?document.write("總結經驗");這里漏了break;
?alert("輸入不對啊")；這里分號敲成了中文分號，改成英文的即可
?alert("輸入不對啊");var?abc=prompt("今天是星期幾","123");這里接收的是字符型，轉換一下數據類型吧
var?abc=parseInt(prompt("今天是星期幾","123"));修改后的代碼
<!DOCTYPE?HTML> <html> <head> <meta?http-equiv="Content-Type"?content="text/html;?charset=utf-8"?/> <title>switch</title> <script?type="text/JavaScript"> function?a1(){ var?abc=parseInt(prompt("今天是星期幾","123")); switch(abc) { ?case?1: ?case?2: ?document.write("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: ????alert("輸入不對啊"); }} </script> </head> <body> <input?type="button"?value="做犀利"?onClick="a1()"> </body> </html>