python 学习
# 打印正方形
def squ(i):
for j in range(i):
for l in range(i):
print('*', end='\t')
print()
# 打印三角形
def tri(i):
for j in range(1, i + 1):
for l in range(j):
print('*', end='\t')
print()
# 输入值调用函数
user = input('输入1打印正方形,输入2打印三角形,输入0退出程序')
if user == '1':
squ(int(input('输入打印边长')))
elif user == '2':
tri(int(input('输入打印边长')))
elif user == '0':
print('退出程序')