1 <!DOCTYPE html>
2 <html lang="en">
3 <head>
4 <meta charset="UTF-8">
5 <title>Bom对象;因为需要跟浏览器对话。</title>
6
7 <script type="text/javascript">
8 /*bom对象最重要的就是与浏览器对话*/
9 //window对象
10 //----alert----confirm--prompt-------
11 window.alert("你好");
12 var res=window.confirm("内容保存？");
13 var res=window.prompt("写入框");
14 alert(res);
15 //setInterval-----cleanInterval
16 function begin(){
17 var Stime=new Date().toLocaleString();
18 var begin=document.getElementById("text");
19 begin.value=Stime
20 }
21 var ID;
22 function setI(){
23 if(ID==undefined){
24 ID=window.setInterval(begin,1000);
25 }
26 }
27 function end(){
28 window.clearInterval(ID);
29 ID=undefined;
30 }
31 </script>
32 </head>
33 <body>
34 <input type="text" style="200" id="text"/>
35 <input type="button" value="begin" id="begin" onclick="setI()" />
36 <input type="button" value="end" id="end" onclick="end()" />
37 </body>
38 </html>
