lua-复制一份table，修改新的table，不改变原来的table

    local table1 = {
   {1,2,3}, {4,5,6}}

    local table2 = UITools.CopyTable(table1)

    table2[1][1] = 2
    print("table1 =", PrintTable(table1))
    print("table2 =", PrintTable(table2))

-- 复制一份table，修改不会影响原来的表
function UITools.CopyTable(table1)
    local newTable = {}
    for key, value in pairs(table1) do
        if type(value) == "table" then
            newTable[key] = UITools.CopyTable(value)
        else
            newTable[key] = value
        end
    end
    return newTable
end