money=int(input("请输入多少金额："))
s=int(input('需要多少只'))
for i in range(1,money//5+1):for j in range(1,money//3+1):for k in range(1,s+1):if 5*i+j*3+k/3==money and i+j+k==s:print("公鸡:",i,"母鸡",j,"小鸡",k)
else:print("end")

a=[]
nums=[2,7,11,15,1,8,7,-2,5,4]
for i in range(len(nums)):for j in range (i,len(nums)):if nums[i]+nums[j]==9 :a.append((nums[i],nums[j]))#注意多加一个括号
print (a)

user_list = [{"name":"alex1","email":"alex1@live.com","pwd":"pwd1"}]for i in range(1,301):temp={"name":"alex"+str(i),"email":"alex@live.com"+str(i),"pwd":"pwd"+str(i)}user_list.append(temp)while True:s=int(input("请输入页码"))x=user_list[10*s-10:10*s]#切片for i in x:print (i)

#创建店铺清单+序号
shop_buy={}#商铺字典
goods    =    [
{"name":"电脑","price":1999},
{"name":"鼠标","price":10},
{"name":"游艇","price":20},
{"name":"美女","price":98},
]
for num,product in enumerate(goods,start=1):print ("序号",num,product)shop_buy[num]=product #创建带序号的商铺字典print("我叫分割线".center(100,"*"))# 输入总资产
while True:all_money=input("请输入总资产，如果退出请输入quit：")if all_money.isdigit():all_money=int(all_money)breakelif all_money=="quit" :print("欢迎下次再来")exit()else:print("请重新输入数字")#创建购物篮

user_buy=[]#用户的购物篮while True:product_list = input("请输入序列号,退出请输入quit,买单请输入buy:")#输入购物列表if product_list=="quit":breakelif product_list.isdigit():#判断输入的是否是数字if 1<=int(product_list)<=len(shop_buy):#判断输入的序号是否不在选购范围内user_buy.append(shop_buy[int(product_list)]["name"])#生成已经选购的购物列表，索引的方法#定义购物篮中各种物品数量computer_num = user_buy.count("电脑")mouse_num = user_buy.count("鼠标")sea_num = user_buy.count("游艇")beauty_num = user_buy.count("美女")cash = computer_num * 1999 + mouse_num * 10 + sea_num * 20 + beauty_num * 98if cash<=all_money:print("\n>>>购物篮中的总额:".center(10,">"),cash,"余额：".center(10,">"),all_money-cash)print("\n购物篮：\n", "电脑", computer_num, "鼠标", mouse_num, "游艇", sea_num, "美女", beauty_num)  # 计算购物篮已添加的东西else:print("余额不足,不能添加该商品".center(30,"-"))user_buy.remove(shop_buy[int(product_list)]["name"])#购物篮中删除无法添加的商品computer_num = user_buy.count("电脑")mouse_num = user_buy.count("鼠标")sea_num = user_buy.count("游艇")beauty_num = user_buy.count("美女")cash = computer_num * 1999 + mouse_num * 10 + sea_num * 20 + beauty_num * 98print("\n>>>购物篮中的总额:".center(10, ">"), cash)print("\n购物篮：\n", "电脑", computer_num, "鼠标", mouse_num, "游艇", sea_num, "美女", beauty_num)  # 计算购物篮已添加的东西else:print("请输入正确的商品序号")elif product_list=="buy":#判断是否买单if len(user_buy)==0:#判断是否购物车为空print("未添加商品，请添加商品")else:print("消费总额：",cash,"\n最终买单蓝：\n", "电脑", computer_num, "鼠标", mouse_num, "游艇", sea_num, "美女", beauty_num)print("欢迎下次光临")breakelse:print("请输入序号(数字)")