用LUA实现几天简单的题目

这三个函数用 Lua 实现分别如下：

function PrintLower(str)

print(str:lower())

end

function MergeAndSort(array1, array2)

local array = {}

for _, elem in ipairs(array1) do

table.insert(array, elem)

end

for _, elem in ipairs(array2) do

table.insert(array, elem)

end

table.sort(array)

for _, elem in ipairs(array) do

io.write(elem, ', ')

end

end

function PrintDigitsAndReverse(num)

local digits = math.ceil(math.log(num)/math.log(10))

print("The digit of " .. num .. " is " .. digits)

print("The reversed number is ")

while num >0 do

local lastDigit = num % 10

io.write(lastDigit)

num = (num - lastDigit) / 10

end

end

2.

function list(data, n)

local str = ""

for i = 1, #data do

if data[i] >n then

str = str .. data[i] .. ","

end

end

return str

end

3.

function odds(data)

local str = ""

for i = 1, #data do

if data[i] % 2 == 1 then

str = str .. data[i]

end

end

return str

end

4.

function factorial(n)

local num = 1

for i = 1, n do

num = num * i

end

return num

end

5.

function dividers(n)

local str = "

for i = 1, math.floor(n / 2) do

if n % i == 0 then

str = str .. i

end

end

return str

end

if vip then

if 商品总价>=100 then

实际花费金钱 = 商品总价*0.8

end

if 商品总价<100 then

实际花费金钱 = 商品总价*0.9

end

else

if 商品总价>=100 then

实际花费金钱=商品总价*0.9

end

if 商品总价<100 then

实际花费金钱=商品总价

end

折扣额 = 商品总价-实际花费金钱

最终付款的金额 = 实际花费金钱

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