<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>title</title> </head> <body> <form> 男: <input type="radio" checked="checked" name="Sex" value="male"> <br> 女: <input type="radio" name="Sex" value="female"> </form> <p>radio广播的意思 ,sex性,male男性,female女性</p> </body> </html>