<div class="test">
<button>Example</button>
<div class="example" style="display:none;">Blah</div>
</div>
<div class="test">
<button>Example</button>
<div class="example" style="display:none;">Another</div>
</div>
当button被点击时,我想要.example,.show但只有.example在当前的.test.