编辑代码

num = {1,4,2,9,9,1}
print("请输入要删除的位数：")
local len = #num
local n = io.read('*n')
for i=1,n do
    local k = 1
    while((num[k]>=num[k+1]) and k < len)
    do
        k=k+1
    end
    table.remove(num,k)
end
while(num[1]=='0')
do
    table.remove(num,0)
end
local s = ""
if num=="" then
    print(0)
else
    for i = 1,len-n do
        s = s .. num[i]
    end
    print(s)
end