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if else流程判断-CLASS-11(Part 1)

if判断语句

1 if true:
2     print("true")
3 else:
4     print("false")

猜年龄大小

1 # Author:dd
2 age_of_boy = 56
3 age = int(input("age:"))
4 if age == age_of_boy:
5     print("you got it")
6 elif age > age_of_boy:
7     print("you need guess smaller")
8 else:
9     print("you need guess bigger")

对输入密码进行隐藏显示

1 import getpass
2 passwd = getpass.getpass("input your password:")
 1 # Author:dd
 2 import getpass
 3 
 4 
 5 _username = "test"
 6 _passwd = "111"
 7 
 8 username = input("username:")
 9 passwd = getpass.getpass("passwd:")
10 print(username,passwd)
11 
12 if _username == username and _passwd == passwd:
13     print("user {name} login success".format(name=username))
14 else:
15     print("login failed")
 1 # Author:dd
 2 import getpass
 3 
 4 
 5 _username = "test"
 6 _passwd = "111"
 7 
 8 username = input("username:")
 9 passwd = input("passwd:")
10 
11 if _username == username and _passwd == passwd:
12     print("user {name} login success".format(name=username))
13 else:
14     print("login failed")
15 print("ddd")

 

if else流程判断-CLASS-11(Part 1)