条件判断与缩进
#/usr/bin/env python sex = input("please input your sex:") if sex == "girl": print("alex is 1b") ==>空格表示缩进,表示一个域,官方建议四个空格 elif sex == "man": print("alex is 2b") else: print("alex is 3b")
运行时出现: please input your sex:girl alex is sb please input your sex:man alex is 2b
please input your sex:ddgrdgg
alex is 3b