python练习之打印实心菱形和空心菱形(单for循环)

代码

rows=7

print('1-'*16)
for i in range(rows):
if i <= rows//2:
print('  '*(rows//2-i)+' *'*(2*i+1))
else:
print('  '*(i-rows//2)+' *'*(2*(rows-i)-1))

print('2-'*16)
for i in range(rows):
if i == 0:
print('  '*(rows//2-i)+' *'+'  '*(2*i-1))
if 0 < i <= rows//2:
print('  '*(rows//2-i)+' *'+'  '*(2*i-1)+' *')
if rows//2 < i < rows-1:
print('  '*(i-rows//2)+' *'+'  '*(2*(rows-i)-3)+' *')
if i == rows-1:
print('  '*(i-rows//2)+' *'+'  '*(2*i-1))

实例