我需要使用嵌套的for循环和
这是我的代码。我已经想出了前两个:
当我启动模式C和D时,我尝试了以下操作:
print('*', end=' ')
来创建这里所示的图案:
![enter image description here](https://istack.dev59.com/L5gYV.webp)
n = 0
print ("Pattern A")
for x in range (0,11):
n = n + 1
for a in range (0, n-1):
print ('*', end = '')
print()
print ('')
print ("Pattern B")
for b in range (0,11):
n = n - 1
for d in range (0, n+1):
print ('*', end = '')
print()
print ('')
当我启动模式C和D时,我尝试了以下操作:
print ("Pattern C")
for e in range (11,0,-1):
n = n + 1
for f in range (0, n+1):
print ('*', end = '')
print()
print ('')
print ("Pattern D")
for g in range (11,0,-1):
n = n - 1
for h in range (0, n-1):
print ('*', end = '')
print()
但是结果与A和B相同。希望能得到帮助!