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  • 基础编程练习题第一波

    1、使用while输入1 2 3 4 5 6  8 9 10

    1 count = 1
    2 while count < 11:    
    3     if count != 7:
    4         print(count)    
    5     count = count + 1
    1版
    1 count = 1
    2 while count < 11:
    3     if count == 7:
    4         count = count + 1
    5         continue
    6     print(count)
    7     count = count + 1
    2版

    2、求1-100所有数 的和

    1 i = 0
    2 sum = 0
    3 while i < 101:
    4     sum = sum + i
    5     i = i + 1
    6     print(i)
    7     print(sum)
    8 print(sum)
    View Code

    3、输出1-100内的所有奇数、偶数

    1 i = 1
    2 while i < 101:
    3     if i % 2 == 0:
    4         print(i)
    5     i = i + 1
    View Code

    4、求1-2+3—4+5...99所有数的和

     1 i = 1
     2 sum1 = 0
     3 sum2 = 0
     4 while i < 100:
     5     if i % 2 == 0:
     6         sum1 = sum1 -i
     7     else:
     8         sum2 = sum2 + i
     9     i = i + 1
    10 print(sum1 + sum2)
    1版
     1 i = 0 
     2 s = 0
     3 while i < 100:
     4     temp = i % 2
     5     if temp == 0:
     6         s = s - i
     7     else:
     8         s = s + i
     9     i = i + 1
    10 print(s)
    2版

    5、用户登录(三次重试机会)

     1 i = 1
     2 while i < 4:
     3     name = input('请输入用户名:')
     4     password = input('请输入密码:')
     5     if  name == 'root' and password == 'root':
     6         print('登录成功')
     7         break
     8     elif i < 3:
     9         print('请重试')
    10     elif i == 3:
    11         print("稍后重试")
    12     i = i + 1
    View Code
    为什么要坚持,想一想当初!
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  • 原文地址:https://www.cnblogs.com/JerryZao/p/8575754.html
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