Python 02 분기 구조

password = 'A12'
A = 'ZXCVBNMASDFGHJKLQWERTYUIOP'
B ='zxcvbnmasdfghjklqwertyuiop'
C = '1234567890'

count1,count2,count3 = False,False,False
for i in password:
    if i in A:
        count1 = True
    if i in B:
        count2 = True
    if i in C:
        count3 = True
if count1 and count2 and count3:
    print('OK')
else:
    print('           ')
2.   
num1,num2 = map(float,input('Num1,Num2:').split(','))
choose_method = input('Choose Method:[+,-,*,/]')
if choose_method in '+-*/':
    if choose_method == '+':
        print('%.2f + %.2f = %.2f'%(num1,num2,num1 + num2))
    elif choose_method == '-':
        print('%.2f - %.2f = %.2f'%(num1,num2,num1 - num2))
    elif choose_method == '*':
        print('%.2f * %.2f = %.2f'%(num1,num2,num1 * num2))
    else :
        print('%.2f / %.2f = %.2f'%(num1,num2,num1 / num2))
else:
    #    
    raise KeyError('Only choose [+,-,*,/]')
 、for in   

range       

1.     
          ,           

ini_passward = 100000
input_ = int(input('     >>:'))

for i in range(2):
    if input_ == ini_passward:
        print('OK')
        break
    else:
        print('    ,       ')
        input_ = int(input('     >>:'))
else:
    print('    ,      ')
2.   

import random
#                .
for i in range(3):
    yanzhengma = random.randrange(1000,9999)
    print('    : %d' % yanzhengma)
    input_ = int(input('      >>:'))
    if input_ == yanzhengma:
        print('   ,        .')
        break
    else:
        print('     ,       ')
 、while  
1.                   /   /   
import random
answer = random.randint(1, 100)# 1 100       
counter = 0
while True:
    counter += 1
    number = int(input('   : '))
    if number < answer:
        print('   ')
    elif number > answer:
        print('   ')
    else:
        print('      !')
        break
print('     %d ' % counter)
if counter > 7:
    print('          ')