实例代码“Ctrl+/”提示“F11/ESC”全屏 返回 格式化 恢复 运行
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<!DOCTYPE html>
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<html>
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<head>
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    <title>Function Type this Example</title>
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    <script type="text/javascript">
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        window.color = "red";
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        var o = { color: "blue" };
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        function sayColor(){
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            alert(this.color);
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        }
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        sayColor();     //red
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        o.sayColor = sayColor;
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        o.sayColor();   //blue
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​
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​
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​
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    </script>
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</head>
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<body>
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​
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</body>
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</html>