zoukankan      html  css  js  c++  java
  • 模块化编程

    #用"from ... import *"来执行代码模块中的函数,就不需要提到模块名,而且可以使用模块中定义的变量
    #如果你需要使用完全限定名(FQN)来用模块名限定函数名(这也是Python里推荐的做法),可以用"import..."
    from transaction_module import *
    #import transaction_module
    #items = ["DONUT","LATTE","FILTER","MUFFIN"]
    #prices = [1.50,2.0,1.80,1.20]
    running = True
    
    while running:
        option = 1
        for choice in items:
            print(str(option)+"."+choice)
            option = option + 1
        print(str(option)+".Quit")
        
        choice = int(input("your choice is:"))
        if choice == option:
            running = False
        else:
            credit_card = int(input("your credit card is:"))
            save_transaction(prices[choice-1]*100,credit_card,items[choice-1])
            print("Yes")
    #模块文件
    #transaction_module.py
    
    #import re
    def save_transaction(price,credit_card,item):
        file = open("transaction.txt","a")
        file.write("%16s%07d %16s
    "%(credit_card,price,item))
        file.close()
    
    def pare_sale_info():
        file = open("sale_info.txt")
        a = []
        for each_line in file:
            (card_num,item_num) = each_line.split(" ")
            a.append([int(card_num),int(item_num)])
        return(a)
    
    items
    = ["DONUT","LATTE","FILTER","MUFFIN"] prices = [1.50,2.0,1.80,1.20] #后面仅做模块调试使用 sale_info = pare_sale_info() i = 0 for each_info in sale_info: save_transaction(prices[each_info[1]-1]*100,each_info[0],items[each_info[1]-1]) #print(item)

    操作相关的文件:

    #sale_info.txt
    
    6382746238764830     1
    6382746238764840     2
    6382746238764850     3
    6382746238764860     4
    6382746238764870     1
    6382746238764880     2
    6382746238764890     3
    6382746238764900     4
    6382746238764910     1
    6382746238764920     2
    6382746238764930     3
    6382746238764940     4
    6382746238764950     1
    6382746238764960     2
    6382746238764970     3
    #transaction.txt
    
    63827462387648300000150            DONUT
    63827462387648400000200            LATTE
    63827462387648500000180           FILTER
    63827462387648600000120           MUFFIN
    63827462387648700000150            DONUT
    63827462387648800000200            LATTE
    63827462387648900000180           FILTER
    63827462387649000000120           MUFFIN
    63827462387649100000150            DONUT
    63827462387649200000200            LATTE
    63827462387649300000180           FILTER
    63827462387649400000120           MUFFIN
    63827462387649500000150            DONUT
    63827462387649600000200            LATTE
    63827462387649700000180           FILTER
    63827462387648300000150            DONUT
    63827462387648400000200            LATTE
    63827462387648500000180           FILTER
    63827462387648600000120           MUFFIN
  • 相关阅读:
    shell 远程调用脚本
    Shell 特殊符号
    Centos 7 安全加固命令行
    unix2dos
    这都是啥啥啥
    发现一个识图比较厉害的网站
    Java 中用正则表达式修改 Email 地址
    PHP 7.0 中各种 Hash 速度比较
    利用create_ap软件创建无线AP
    🦊 自用Firefox和AdBlockPlus黑白名单
  • 原文地址:https://www.cnblogs.com/liuyang92/p/7401488.html
Copyright © 2011-2022 走看看