#!/usr/bin/env python # -*- coding:utf-8 -*- # Python if控制流语句 letter = input("please input:") if letter == 'S': print('please input second letter:') letter = input("please input:") if letter == 'a': print('Saturday') elif letter == 'u': print('Sunday') else: print('data error') elif letter == 'F': print('Friday') elif letter == 'M': print('Monday') elif letter == 'T': print('please input second letter') letter = input("please input:") if letter == 'u': print('Tuesday') elif letter == 'h': print('Thursday') else: print('data error') elif letter == 'W': print('Wednesday') else: print('data error')