078_ 標簽有什么作用？

<form>
  <label for="male">Male</label>
  <input type="radio" name="sex" id="male" />
  <br />
  <label for="female">Female</label>
  <input type="radio" name="sex" id="female" />
</form>

 效果圖如下：我們點擊Male與Female提示字，就相當於點擊了radio

Male
Female