rainy=input("is it raining?y/n") cold=input("is it cold?y/n") windy=input("is it windy?y/n") if(rainy=="y" and cold=="y"): #1、这句条件测试语句什么意思 print("you had better wear a raincoat") elif(windy=="y" or cold=="y") # 2、这句条件测试语句什么意思 print("you had better wear a jacket") elif(windy!="y" or cold!="y") # 3、这句条件测试语句什么意思 print("wear whatever you want")