python基础02

跳出多层循环

---

#!/bin/bash
# -*- coding:utf-8 -*-

for i in range(1,100):
	for x in range(1,100):
		for y in range(1,100):
			print(i,x,y)
			exit()

购物程序

---

#!/bin/bash
# -*- coding:utf-8 -*-

#变量
goods_list = {
	"something1" : 100,
	"something2" : 20,
	"something3" : 50,
	"weed" : 75,
	"Marlboro" : 15,
	"heroin" : 325
}
bought_list = [] #购买列表
count = 0 #商品序号
goods_name = list(goods_list.keys())
#函数
def get_price(choice):
	name = goods_name[choice]
	return name,goods_list[name]
#主程序
#input
while True:
	user_salary = input("请输入你的资金:")
	if user_salary.isdigit():
		user_salary = int(user_salary)
		break
#menu		
print("--------goods store--------")
for x in goods_name:
	print("%s. %s ---- %s" %(count,x,goods_list[x]))
	count += 1
print("--------goods store--------")
#bought
while True:
	list_choice = input("请输入要购买的商品编号:")
	if list_choice.isdigit():
		list_choice = int(list_choice)
		if list_choice >= 0 and list_choice < len(goods_list):
			bought_name,bought_price = get_price(list_choice)
			if user_salary - bought_price >= 0:
				bought_list.append(bought_name)
				user_salary = user_salary - bought_price
				print("目前余额:%s" %user_salary ,"您购买的商品:",bought_list)
			else:
				print("你的资金不足以购买")

		else:
			print("错误的选择")
		still_choice = input("继续?y/n")
		if still_choice == 'n' or still_choice == 'N':
			print("您的余额为%s" %user_salary)
			exit()