<p class="tag"> css选择器 nth-child </p> nth-child(2n) 和 nth-child(2)有什么区别，nth-child(n)的值用nth-child(1)可以取到，为什么前者却不行，谢谢 <br> <h2>回复讨论(解决方案)</h2> <p class="sougouAnswer"> http://www.w3school.com.cn/cssref/selector_nth-child.asp </p> <p class="sougouAnswer"> http://www.w3school.com.cn/cssref/selector_nth-child.asp 好 </p>
