[python第五課]構造程式邏輯

#coding:utf-8
import random
while True:
    xuanze=int(input("請輸入您想進入的題目：\n1、水仙花數\n2、百錢百雞\n4、退出\n(請輸入您的數字)"))

    if xuanze == 1:
        print("水仙花數")
        while True:
            while True:
                n=int(input("請輸入一個三位數"))
                if n>100 and n<999:
                    break
                else:
                    print("您輸入的數字不是三位數，請再次輸入")
            print("輸入成功\n下麵數位分離")
            n_gewei=int(n%10)
            n_baiwei=int(n/100)
            n_shiwei=int(n_baiwei%10)
            print("百位："+str(n_baiwei)+"\n十位："+str(n_shiwei)+"\n個位："+str(n_gewei))
            jisuan=n_gewei^3+n_shiwei^3+n_baiwei^3
            if jisuan==n:
                print(str(n)+"這個數是水仙花數")
            else:
                print(str(n)+"這個數不是水仙花數")
            tuichu=int(input("請問是否想退出:\n1、退出\n2、繼續\n(輸入數字):"))
            if tuichu==1:
                break
            if tuichu==2:
                continue

    if xuanze == 2:
        while True:
            print("百錢百雞\n價格：\n公雞：5元/只\n母雞：3元/只\n小雞：1元/只\n用n元買")
            n_money=int(input("請輸入您的零錢："))
            for i in range(int(n_money/5)):
                for j in range(int(n_money/3)):
                    for k in range(int(n_money/1)):
                        if 5*i + 3*j + 1*k ==n_money:
                            print("公雞："+str(i)+"母雞"+str(j)+"小雞"+str(k))
            tuichu_1=int(input("請問是否想退出:\n1、退出\n2、繼續\n(輸入數字):"))
            if tuichu_1 == 1:
                break
            if tuichu_1 == 2:
                continue

    if xuanze == 4:
        break