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这个如何？

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阿光与阿曦

#1 Created at ... [Delete] [Delete and Lock User] 

var list = document.getElementById('test-list');
for(let i = 0; i < list.children.length; i++){
  let ele = list.children[i];

  if(ele.innerText !== 'JavaScript' && ele.innerText !== 'HTML' && ele.innerText !== 'CSS'){
     list.removeChild(ele);
     i--;
  }
};

阿光与阿曦

#2 Created at ... [Delete] [Delete and Lock User]

//ECMAScript 6

var list = document.getElementById('test-list');

for(let i of list.children){

  let ele = i;

  if(ele.innerText !== 'JavaScript' && ele.innerText !== 'HTML' && ele.innerText !== 'CSS'){

     list.removeChild(ele);

  }

};

云端漫步81

#3 Created at ... [Delete] [Delete and Lock User]

不可以对要遍历的数组删除或增加节点。要不然遍历的就不是原数组了。

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