week = input("请输入星期数的首字母") match week: case "m": print("星期一") case "t": d = input("请输入第二个字母:") if d == "u": print("星期二") if d == "h": print("星期四") case "w": print("周三") case "f": print("周五") case "s": d = input("请输入第二个字母:") if d == "a": print("周六") if d == "u": print("周日")