初学习-python打印乘法表、正方形、三角形

for x in range(1,4):
for o in range(0,x-1):
print('*',end='')
pass
pass
print('*')

print('\n')
print("正方形")
for c in range(1,4):

for b in range(2):
print('*',end='*')
pass
print('*')
pass

print("乘法表")

for m in range(1,10):

for n in range(1,m+1):

print('%s×%s=%s'%(n,m,m*n),end=' ')#指定字符宽度

print()