1、使用while循环输入 1 2 3 4 5 6 8 9 10
count = 0 while count < 10: count = count + 1 if count == 7: continue print (count)
2、求1-100的所有数的和
count = 1 sum = 0 while count <=100: sum = sum + count count = count + 1 print (sum)
3、输出 1-100 内的所有奇数
count = 1 while count < 100: print(count) count = count + 2
4、输出 1-100 内的所有偶数
count = 2 while count < 100: print(count) count = count + 2
5、求1-2+3-4+5 ... 99的所有数的和
count = 1 count1 = 2 sum = 0 while count < 100: count = count + 2 count1 = count1 + 2 sum = sum + count - count1 print(sum)
6、用户登陆(三次机会重试)
account = "guo" password = '12345' a = 0 while a < 3: a = a + 1 if input('请输入您的账户:') == account: a = 0 while a < 3: a = a + 1 if input('请输入您的密码:') == password: print('恭喜登陆') break if a >= 3: print('您输入信息有误已超过3次,自动退出')