appendchild用法

appendChild() 方法用于将一个节点添加到指定父节点的子节点列表的末尾。具体使用方式如下：<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
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- *2* *3* [appendChild,insertBefore,replaceChild,removeChild,cloneNode用法小结](https://blog.csdn.net/qq_35087256/article/details/80588301)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v92^chatsearchT0_1"}}] [.reference_item style="max-width: 50%"]
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