value值一样与不一样的区别
<form action="save.php" method="post" >
<label>性别:</label>
<label>男</label>
<input type="radio" value="1" name="gender" />
<label>女</label>
<input type="radio" value="1" name="gender" />
<label>中性</label>
<input type="radio" value="1" name="gender"/>
</form>