在Lua列表中搜索项目 [英] Search for an item in a Lua list

查看：87 发布时间：2020/5/2 5:07:55 list lua lua-table

本文介绍了在Lua列表中搜索项目的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

如果我有这样的项目列表:

If I have a list of items like this:

local items = { "apple", "orange", "pear", "banana" }

如何检查此列表中是否包含橙色"?

how do I check if "orange" is in this list?

在Python中，我可以这样做:

In Python I could do:

if "orange" in items:
    # do something

Lua中是否有一个等价物?

Is there an equivalent in Lua?

Then you could put your list in the Set and test for membership:

local items = Set { "apple", "orange", "pear", "banana" }

if items["orange"] then
  -- do something
end

或者您可以直接遍历列表:

Or you could iterate over the list directly:

local items = { "apple", "orange", "pear", "banana" }

for _,v in pairs(items) do
  if v == "orange" then
    -- do something
    break
  end
end

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