🚦为什么会是while j<=5-i 啊?当j等于3的时候,这个表达式不就不成立了吗?[face]emoji:002.png[/face]
while的循环嵌套:
i=1
while i<=5:
j = 1
while j <= 5-i:
print(' ', end='')
j += 1
k = 1
while k <= 2i-1:
print('',end='')
k += 1
print()
i+=1