<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>prompt</title>
? <script type="text/javascript">
? function rec(){
?var score; //score變量，用來存儲用戶輸入的成績值。
?score =prompt("請輸入成績:");
?if(score>=90)
?{
??? document.write("你很棒!");
?}
?else if(score>=75)
??? {
??? document.write("不錯吆!");
?}
?else if(score>=60)
??? {
??? document.write("要加油!");
??? }
??? else
?{
?????? document.write("要努力了!");
?}
? }
? </script>
</head>
<body>
??? <input name="button" type="button" onClick="rec()" value="點擊我，對成績做評價!" />
</body>
</html>
xcbwh
2014-10-23
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