笔记---python练习题

##python练习题(如有错误,敬请指出.若有侵权,立删!!!)

# #偶减奇加求和
count = 1
sum = 0
while count < 100:
    if count == 88:   #排除88
        count +=1
        continue
    if count % 2 == 1:
       sum += count
    else:
        sum -= count
    count += 1
print(sum)



#利用while 循环,实现多层选择
while 1:
    choose = input("请选择：A,B,C:")
    if choose.upper() == "A":
        print("走大路回家")
        train = input("请选择：公交车,步行:")
        if train == "公交车":
            print("距离到家还有十分钟")
            break
        elif train == "步行":
            print("距离到家还有三十分钟")
            break
        else:
            print("您的输入有误,请重新输入!!!")
    elif choose.upper() == "B":
        print("走小路回家")
    elif choose.upper() == "C":
        print("绕路回家")
        plays = input ("请选择:游戏厅,网吧:")
        if plays == "游戏厅":
            print("父亲提着棒子在等你")
        elif plays == "网吧":
            print("母亲已经做好了战斗准备")
    else:
         print ("您的输入有误,请重新输入!!!")