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1. 简单的if/else条件判断
judge_flow.py
name = input("Please input name: ") if name == ‘master‘: print(‘Hello Master‘) password = input(‘Please input password: ‘) if password == ‘abc123‘: print(‘Access granted.‘) else: print(‘Wrong password!‘) else: print(‘Invalid user!‘)
运行结果:
Please input name: david
Invalid user!
Please input name: master
Hello Master
Please input password: aaa
Wrong password!
Please input name: master
Hello Master
Please input password: abc123
Access granted.
2. 多项条件判断
elif statements
judge_flow_multiple.py
age = int(input("Input your age: ")) if age < 5: print(‘Hi, Baby.‘) elif age < 12: print(‘Hi Child.‘) elif age < 100: print(‘Hi Man‘) else: print(‘Your Majesty‘)
运行结果:
Input your age: 3
Hi, Baby.
Input your age: 90
Hi Man
Input your age: 1000
Your Majesty
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原文地址:http://www.cnblogs.com/davidgu/p/4906832.html