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>Dynamic Script Example</title>
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</head>
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<body>
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    <p>You should see an alert saying &quot;hi&quot; after clicking the button.</p>
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    <input type="button" value="Add Script" onclick="addScript()">
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​
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    <script type="text/javascript">
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        function addScript(){
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            var script = document.createElement("script");
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            script.type = "text/javascript";
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            script.text = "function sayHi(){alert('hi');}";
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            document.body.appendChild(script);
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            sayHi();
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        }
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​
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    </script>
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</body>
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</html>