This article brings you an introduction to Python basic process control (code examples). It has certain reference value. Friends in need can refer to it. I hope it will be helpful to you.
Conditional statement
if 条件: 内容 else: 内容
The indentation must be the same or an error will be reported
#!/usr/bin/evn python #-*- coding:utf-8 -*- if 1 == 1: print("OK") else print("NO")
One = sign is assignment
Two == is comparison
!= means no Equal to
Multiple conditions
#!/usr/bin/evn python #-*- conding:utf-8 -*- name = input("UserName:") if name == "12345": print("恭喜你答对了") elif name == "ABCDE": print("恭喜你对了是ABCDE") elif name == "qazwsx": print("恭喜你是qazwsx") else: print("你打错了,请重新输入")
and All conditions must be met
#!/usr/bin/env python #-*- coding:utf-8 -*- name = input("UserName:") pw = input("password:") if name == "abc" and pw == "123": print("恭喜你输入正确") else: print("输入错误请重新输入")
or Only one of the conditions must be met
#!/usr/bin/env python #-*- coding:utf-8 -*- name = input("UserName:") if name == "abc" or name == "123": print("恭喜你输入正确") else: print("请输入正确字符")
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