我对另一个问题的答案(您完全忽略了它！)表明您声称

My answer to your other question, which you completely ignored!, shows you're wrong in claiming that

该问题的答案没有 保持订单"

The answers of that question did not keep the "order"

• 我的回答没有保持秩序，显然说是的.再次强调，看您是否可以一直忽略它...:
• my answer did keep order, and it clearly said it did. Here it is again, with added emphasis to see if you can just keep ignoring it...:

对于一个非常大的列表，可能是最快的方法，如果要保留剩余项目的确切顺序，请执行以下操作:

Probably the fastest approach, for a really big list, if you want to preserve the exact order of the items that remain, is the following...:

biglist = [ 
    {'title':'U2 Band','link':'u2.com'}, 
    {'title':'ABC Station','link':'abc.com'}, 
    {'title':'Live Concert by U2','link':'u2.com'} 
]

known_links = set()
newlist = []

for d in biglist:
  link = d['link']
  if link in known_links: continue
  newlist.append(d)
  known_links.add(link)

biglist[:] = newlist