如何保存执行过程中更改的列表？

Posted 2023-05-07

【中文标题】如何保存执行过程中更改的列表？

【英文标题】：How to save lists that have been changed during execution?

【发布时间】：2016-10-12 20:33:28

【问题描述】：

所以，我制作了一个基于文本的 Rpg（非常类似于 Progress Quest）。唯一值得保存的清单是武器和物品清单以及您的姓名和职业。在游戏开始时，你会清空这两个列表，并将你的名字重置为 0。

weapons = []就这样开始了。

weapons = ["sword", "bow", "staff"]就这样结束了。

我想要一种方法来启动相同的程序或保存这些元素的程序副本。我怎么做？以下是整个脚本......请注意，我制作这个只是为了好玩，所以我知道如何让它变得更好更大；请对我发布的主题发表评论。

import time
import random

allThings = ["gold coin", "Silver Coin", "Copper Coin", "Twinkies",
             "Human Tissue", "Stuffed Bear", "Hulk Toy", "Pen", "Bobblehead",
             "Charger", "Lenovo Thinkpad Modle T420",
             "Stephen King Book: Full Dark, No Stars", "Toy Laser Gun",
             "Car Keys", "Alarm Clock", "Casio Watch", "Python Manual",
             "Tissues", "Screws", "Spare CDs", "USB Flash Drive", "Spoon",
             "Fork", "Kitchen Knife", "BasketBall", "Paper Bag",
             "Crubled Paper", "Water Bottle", "Technical Document",
             "Plastic Glove", "Toy Bus", "Gas Canister", "Bracelet",
             "Space Suit", "Nuclear Bomb", "Test Tubes", "Light Bulb",
             "Mirror", "Gun Powder", "Arrow", "Human Brain", "Human Heart",
             "Human Kidney", "Human Lung", "Human Stomach"]
Enemies = ["a Corrupted Police Officer", "A Half-Lizard", "A Dog",
           "A Failed Surgery Client"]
inv = []
Equip = []
EquipAll = ["Sharp Stick", "Sharp Metal Scrap", "Pin", "Pencil", "Raw Thick
            Stick", "Moddified Stick", "Grandpa's Axe", "Cursed Axe", "Fine
            Blade", "Wooden Sword", "BB Gun", "Nerf Gun", "Human Arm", "22.
            Caliber Pistol", "45. Caliber Pistol", "Colt 45.", "9mm Pistol",
            "Ice Staff", "Fire Staff", "5.66mm Bullpup Rifle", "7.22 Assault
            Rifle", "357. Magnum", "44. Magnum", "FAL Rifle", "7.62mm Rifle",
            "308. Rifle", "Laser Kilo Gun", "Laser Mega Gun",
            "Laser Deca Gun", "Laser Hecto Gun", "Laser Giga Gun",
            "Laser Tera Gun", "Laser Peta Gun", "Laser Exa Gun",
            "Laser Zeta Gun", "Laser Yotta Gun", "Inferno Blade",
            "Blade of the Red Dragon", "Frag Granade", "Spear", "Shotgun",
            "308. Sniper Rifle", "Bow", "Attack Dog", "Rolling Pin"]
chance = ["1", "2", "3", "4", "5"]
debt = 1000000
name = 0

c = 0
x = 0
y = 0

def Start():
    global debt
    if len(inv)<10:
        x = random.choice(allThings)
        print "*********************************************************************"
        print("You came across and executed " + random.choice(Enemies) + " ...")
        time.sleep(5)
        print "--------------------------------------------------------------------"
        print("You found " + x + " ...")
        inv.append(x)
        c = random.choice(chance)
        if c == ("1"):
            print "----------------------------------------------------------------"
            y = random.choice(EquipAll)
            print("You found " + y + " as a weapon...")
            Equip.append(y)
            print "****************************************************************"
        print "\n"
        print "////////////////////////////////////////"
        print("Name: " + name + "  Race: " + race)
        print"____________________________"
        print("Debt due: " + str(debt))
        print"____________________________"
        print "Items: \n"
        print inv
        print "___________________________"
        print "Weapons: \n"
        print Equip
        print "////////////////////////////////////////"
        time.sleep(7)
        print "\n"
        print "\n"
        print "\n"
        print "\n"
        print "\n"
        print "\n"
        print "\n"
        print "\n"
        print "\n"
        print "\n"
        Start()
    elif len(inv)>9:
        print "+++++++++++++++++++++++"
        print "+Going to pawn shop...+"
        print "+++++++++++++++++++++++"
        time.sleep(5)
        print("Selling " + str(inv) + " ...")
        inv[:] = []
        time.sleep(13)
        print "\n"
        print "Items sold. You got $10"
        debt = debt - 10
        time.sleep(5)
        print "Heading back to the world"
        time.sleep(10)
        print "\n"
        print "\n"
        print "\n"
        print "\n"
        Start()

print "-------------------THE 2017 Executioner------------------------"
print"Select your name:"
name = raw_input()
print "\n"
print "Select your race: Half-Lizard, Octopus, etc (You can even make one up):"
race = raw_input()
print "\n"
print "One last thing... are you a man or a woman?"
sex = raw_input()
print "\n"
print "******************************************************************************"
print "****************************Your Story Begins Here****************************"
print "******************************************************************************"
print "\n"
print "\n"
print "Underground Medical Files:"
print "\n"
print("Our latest client, " + name + ", has suffered a terrible accident..."
      + name + " was brought here by some friends... We set up a 'full body "
      "surgery' for this " + sex + " ..." + name + " decided to become a "
      + race + ".... this is the most expensive surgery we have ever done"
      "... We thought " + name + " would be able to pay for it... But after "
      "we said that they were in debt.... well, the client went full-on "
      "beserk .... Now this " + race + " is going around the world doing "
      "who-knows-what...." + "\n" + " Signed, /\\@..... Director of the "
      "illegal underground Hospital and Surgeries")
xcv = raw_input("Press Enter to Begin...")
print "\n"
print "\n"
print "Loading..."
time.sleep(30)
print "\n"

Start()

【问题讨论】：

将列表写入文件，脚本运行时再次加载文件。

【参考方案1】：

在 Python 中执行此操作的规范方法是使用 pickle 模块。对于 Python 3，documentation is here。本文档中的一个示例：

import pickle

# An arbitrary collection of objects supported by pickle.
data = 
    'a': [1, 2.0, 3, 4+6j],
    'b': ("character string", b"byte string"),
    'c': None, True, False


with open('data.pickle', 'wb') as f:
    # Pickle the 'data' dictionary using the highest protocol available.
    pickle.dump(data, f, pickle.HIGHEST_PROTOCOL)

此示例将嵌套数据结构（其中包含一些列表、集合和元组的 dict）保存到名为 data.pickle 的文件中。以下是它的加载方式：

import pickle

with open('data.pickle', 'rb') as f:
    # The protocol version used is detected automatically, so we do not
    # have to specify it.
    data = pickle.load(f)