编辑下面的代码:【加编码】
<html> <body> <form action="demo-form.php" method="get"> <input type="radio" name="sex" value="Male"> Male<br> <input type="radio" name="sex" value="Female" checked> Female<br> <input type="submit" value="Submit"> </form> </body> </html>
结果: 【此窗口】 帮助?
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