team = input("请输入一个整数：")
num = int(team)
while num:
    i = num -1
    while i:
        print(‘ ‘,end=‘‘)     #注意括号里面的 ‘‘ 要加个空格哦
        i = i- 1
    j = num
    while j:
        print(‘*‘,end=‘‘)
        j = j-1
    print()
    num =num-1

team = input("请输入一个整数：")
num = int(team)
i = 1
while num>=1:
    print(i)
    i +=1
    num -=1

Python作业之While应用