BootWiki教程网
源代码：
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<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>BootWiki 教程网</title> </head> <body> <p>第一个单选按钮在表单之外,但它仍属于该表单的一部分。尝试点击文本标签切换单选按钮。</p> <form action="demo_form.php" id="form1"> <input id="male" name="sex" type="radio" value="male"><br> <label for="female">Female</label> <input id="female" name="sex" type="radio" value="female"><br><br> <input type="submit" value="提交"> </form> <label for="male" form="form1">Male</label> </body> </html>
运行结果