switch語句的問題
這樣寫哪里出了問題呢
小寶正年少
2018-03-08
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2018-03-08
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2018-04-28
1、case5 下沒有break；
2、你的function{}沒有關(guān)閉；
3、參看了一樓的答案?涉及一個(gè)叫：parseInt( )的函數(shù)，查了一下不知道對不對?。?/p>
? ? 如果沒有這個(gè)parseInt( ? )，輸入的數(shù)字1 ?!= ?case1里的1；
2018-03-11
case 5 下面沒有break;
2018-03-08
<!DOCTYPE HTML>
<html>
????<head>
????<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
????<title>switch</title>
????<script type="text/JavaScript">
???????? function b() {
???????????? var myweek = parseInt(document.getElementById("a").value);
???????????? switch (myweek)
???????????? {
???????????? case 1:
???????????? case 2:
???????????????? alert("學(xué)習(xí)理念知識");
???????????????? break;
???????????? case 3:
???????????? case 4:
???????????????? alert("到企業(yè)實(shí)踐");
???????????????? break;
???????????? case 5:
???????????????? alert("總結(jié)經(jīng)驗(yàn)");
???????????????? break;
???????????? case 6:
???????????? case 7:
???????????????? alert("周六、日休息和娛樂");
???????????????? break;
???????????? default:
???????????????? alert("請輸入正確的日期！")
???????????? }
???????? }
????</script>
????</head>
????<body>
???????? <div>請輸入工作日：</div>
???????? <input type="text" id="a">
???????? <input type="button" value="查看工作安排" onclick="b()">
????</body>
</html>
2018-03-08
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>switch</title>
<script type="text/JavaScript">
function b(){
? ??
var myweek=parseInt( document.getElementById('a').value);
?switch (myweek)
{
?case 1:
?case 2:
?document.write("學(xué)習(xí)理念知識");
?break;
?case 3:
?case 4:
?document.write("到企業(yè)實(shí)踐");
?break;
? case 5:
?document.write("總結(jié)經(jīng)驗(yàn)");
break;
?case 6:
?case 7:
?document.write("周六、日休息和娛樂");
?break;
?default:
?document.write("出現(xiàn)錯(cuò)誤了哦！")
}
}
</script>
</head>
<body>
<div>請輸入工作日：</div>
<input type="text" id="a">
<input type="button" value="查看工作安排" onclick="b()">
</body>
</html>
</html>
2018-03-08
case 有對應(yīng)執(zhí)行的操作要break；