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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<body>
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<p>Click on one of the text labels to toggle the related control:</p>
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<form action="demo_form.phpp">
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  <label for="male">Male</label>
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  <input type="radio" name="sex" id="male" value="male"><br>
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  <label for="female">Female</label>
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  <input type="radio" name="sex" id="female" value="female"><br><br>
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  <input type="submit" value="Submit">
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</form>
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</body>
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</html>
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