Lua的Table表使用例子（便于使用查询）

一、table.insert()

1.1

    local countries = {"China", "England", "Brazil"}
    --尾插法（Pos不填，默认插入尾部）
    table.insert(countries, "France")
    --头插法（首部插入）
    table.insert(countries, 1, "Australia") 
    
    dump(countries)

二、table.remove()

2.1

    local countries = {"China", "England", "Brazil", "England"}
    table.removeItem(countries, "England", true)
    dump(countries)

2.2

    local countries = {"China", "England", "Brazil", "Australia"}
    --移除位置2上的元素（“England”）
    table.remove(countries, 2)
    --默认尾部删除元素
    table.remove(countries)
    dump(countries)

三、table.maxn()

3.1

    local countries = {"China", "England", "Brazil", [7] = "Australia"}
    local Cars = {[-3] = "Benz", [-2] = "Toyota", [-1] ="LandRover"}
    --获取table的最大下标。如下标小于0，则返回0
    print("Countries Maxn  >> "..table.maxn(countries))
    print("Cars Maxn  >> "..table.maxn(Cars))
    dump(countries)

四、table.concat()

4.1

    local countries = {"China", "England", "Brazil","Australia"}
    --用“+”拼接table中的元素（table[1].."+"..table[2]..………….."+"..table[n]）
    print("拼接:  "..table.concat(countries, "+"))
    print("从Pos[3]开始拼接:  "..table.concat(countries, "+", 3))

4.2

    local countries = {"China", "England", "Brazil","Australia"}
    --table.concat(table, "X", began, end)
    --从began的位置，用"X"连接到end位置结束
    print("拼接:  "..table.concat(countries, "+", 2, 3))

五、table.sort()

5.1 

    local countries = {"China", "England", "Brazil","Australia"}
    table.sort(countries)
    dump(countries)

5.2

    local countries = {"China", "England", "Brazil","Australia"}
    --自定义排序方式
    myComparator = function(a, b) 
        if a > b then
            return true
        else 
            return false
        end
    end 
    table.sort(countries, myComparator)
    dump(countries)