<!DOCTYPE html>charset="utf-8"W3Cschool(w3cschool.cn)点击其中一个文本标签选中选项:action="/statics/demosource/demo-form.php"for="male"Maletype="radio" name="sex" id="male" value="male"for="female"Femaletype="radio" name="sex" id="female" value="female"type="submit" value="提交"