1 <body>
2
3 年份:<input type="text" id="A" shx="2016" /><br />
4 <input type="button" value="提交" onclick="tj()" /><br />
5
6 例子2:
7 <input type="button" value="同意么?(10)" id="B" disabled="disabled" />
8
9 </body>
1 <script >
2 function tj()
3 {
4 var a = document.getElementById("A");
5 var a1 = a.value;
6 var a2 = a.getAttribute("shx");
7 if(a1 == a2)
8 {
9 alert("回答正确")
10 }
11 else
12 {
13 alert("错误回答")
14 }
15 }
16
17 var b = document.getElementById("B");
18 var n = 10;
19 function sx()
20 {
21 n--;
22 if(n==0)
23 {
24 b.removeAttribute("disabled");
25 b.value="同意";
26 return;
27 }
28 else
29 {
30 b.value = "同意么?("+n+")";
31 }
32 window.setTimeout("sx()",1000);
33 }
34 window.setTimeout("sx()",1000);
35
36 </script>
window.setTimeout("sx()",1000);
每隔 1 秒,自动调用一次 sx() 函数
结果: