如何在单选按钮选择上显示不同的组件.
<input type="radio" name="book" value="One" checked="checked">
<input type="radio" name="book" value="Round">
<div> // this should show show default, One is selected
<p>Value One</p>
</div>
<div> // this should show show on radio change to Round selected
<p>Value Round</p>
</div>
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