1. 使用while循环输出1 2 3 4 5 6 8 9 10
i =1 while i <= 10: print(i,end=' ') i = i +1 if i == 7: i = i + 1 print(" ",end='') continue
2. 求1-100的所有数的和
sum = 0 for i in range(101): sum = sum + i print(sum)
3. 输出 1-100 内的所有奇数
for i in range(101): if i % 2 == 1: print(i,end=' ')
4. 输出 1-100 内的所有偶数
for i in range(1,101): if i % 2 == 0: print(i,end=' ')
5. 求1-2+3-4+5 ... 99的所有数的和
sum = 0 for i in range(100): if i % 2 == 1: sum = sum + i if i % 2 == 0: sum =sum -i print(sum)
6. 用户登陆(三次机会重试)
name = 'insnce' for i in range(3): s = input('请输入用户名') if s == name: print('登录成功') break else: print('登录失败') continue
7:猜年龄游戏
要求: 允许用户最多尝试3次,3次都没猜对的话,就直接退出,如果猜对了,打印恭喜信息并退出 age = 18 for i in range(3): s = int(input('请输入要猜的年龄')) if s == age: print('恭喜你猜对了') break else: print('猜错了') continue
8:猜年龄游戏升级版(选做)
要求: 允许用户最多尝试3次 每尝试3次后,如果还没猜对,就问用户是否还想继续玩,如果回答Y或y, 就继续让其猜3次,以此往复,如果回答N或n,就退出程序 如何猜对了,就直接退出 while True: for i in range(3): s = int(input('请输入要猜的年龄')) if s == age: print('恭喜你猜对了') break else: print('猜错了') count = count + 1 continue if s == age: break if count%3 == 0: answer = input('是否继续猜,是的话回复y或Y,否的话回复n或N:') if answer == 'n' or answer=='N': break elif answer == 'y' or answer=='Y': continue
9.for循环打印99乘法表
for i in range(1,10): for j in range(1,i+1): print(f'{i}x{j}={i*j}',end=' ') print('')
10.for循环打印金字塔:如下
for i in range(1,10,2): print(f'{"*"*i:^10}',end='\n')