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                ??碼云GVP開源項目 12k star Uniapp+ElementUI 功能強大 支持多語言、二開方便! 廣告
                # **JS獲取元素標簽** 通過ID獲取(getElementById); 通過name屬性(getElementsByName); 通過標簽名(getElementsByTagName); 通過類名(getElementsByClassName); 獲取html的方法(document.documentElement); 獲取body的方法(document.body); **querySelector**() 方法僅僅返回匹配指定選擇器的**第一個元素**。 如果你需要返回所有的**元素**,請使用**querySelectorAll**() 方法替代 **點擊添加active類并移除同輩存在的active類** ``` <script type="text/javascript"> document.querySelectorAll('.top_tabs>li').forEach(function(e,i,list){ e.onclick=function(){ list.forEach(function(e,i,list){ e.classList.remove("active"); }) e.className="active"; } }) </script> ```
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