Python Basics-----While loop exercise

I. Using while loop output 1 2 3 4 5 6 8 9 10

1 #!/USR/BIN/EVC Python 32 #-*-coding:utf-8-*-3 4 " "5 using while loop Output 1 2 3 4 5 6 8 96 " "7 8Count = 19  whilecount<=10:Ten     ifCount = = 7: One         Pass A     Else: -         Print(count) -Count + = 1

Second, using the while loop output 1~100 and

1 #!/USR/BIN/EVC Python 32 #-*-coding:utf-8-*-3 4 " "5 using the while loop to output 1~100 and6 " "7 8i = 19sum =0Ten  whilei<=100: Onesum = sum +I Ai + = 1 - Print(sum)

Three, using the while loop output 1~100 all the odd

# !/USR/BIN/EVC Python 3 # -*-coding:utf-8-*- " " use the while loop to output all the odd numbers within the 1~100 " "  = 0 while I <:    i+=1 while     i% 2! = 0:         Print (i)         + = 1

Iv. using the while loop to output all the even numbers within the 1~100

# !/USR/BIN/EVC Python 3 # -*-coding:utf-8-*- " " using the while loop to output all the even numbers within the 1~100 " "  = 0 while I <:    i+=1 while     I% 2 = = 0:         Print (i)         + = 1

V. Using the while loop output 1-2+3-4+5.....+99 and

1 #!/USR/BIN/EVC Python 32 #-*-coding:utf-8-*-3 4 " "5 using the while loop to output 1-2+3-4+5.....+99 and6 " "7 8i = 19sum =0Ten  whilei<=99: One     ifI% 2 = =0: Asum = Sum-I -     Else: -sum = sum +I thei + = 1 - Print(sum)

Six, determine the user login, three chance to retry

1 #!/USR/BIN/EVC Python 32 #-*-coding:utf-8-*-3 4 " "5 User Login, three chance retry6 " "7 8 9Count = 1Ten  whileCount <= 3: One  A     ifInput'Please enter user name:') =='liming': -         Print('Login Successful! ') -          Break the     Else: -         Print('Please try again! ') -Count + = 1 - Else: +     Print('has failed three times and cannot log in today. ')

Python Foundation-----while loop exercise