5: document.write(result);
6: // -->
7: </script>
21 指定次数循环
1: <script>
2: <!--
3: var myArray = new Array(3);
4: myArray[0] = “Item 0”;
5: myArray[1] = “Item 1”;
6: myArray[2] = “Item 2”;
7: for (i = 0; i < myArray.length; i ) {
8: document.write(myArray “<br>”);
9: }
10: // -->
11: </script>
22 设定将来执行
1: <script>
2: <!--
3: function hello() {
4: window.alert(“Hello”);
5: }
6: window.setTimeout(“hello()”,5000);
7: // -->
8: </script>
23 定时执行函数
1: <script>
2: <!--
3: function hello() {
4: window.alert(“Hello”);
5: window.setTimeout(“hello()”,5000);
6: }
7: window.setTimeout(“hello()”,5000);
8: // -->
9: </script>
24 取消定时执行
1: <script>
2: <!--
3: function hello() {
4: window.alert(“Hello”);
5: }
6: var myTimeout = window.setTimeout(“hello()”,5000);
7: window.clearTimeout(myTimeout);
8: // -->
9: </script>
25 在页面卸载时候执行函数
1: <body onUnload=”functionName();”>
2: Body of the page
3: </body>
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