[Python]小甲鱼Python视频第031课(pickle)课后题及解答

# -*- coding: utf-8 -*-
"""
Created on Fri Feb 15 23:05:24 2019

@author: fengs
"""

"""
0. pickle的实质是什么？
    a.将对象数据以二进制形式保存在文件中
    b.将对象数据以二进制形式从文件中读取
　　输入输出二进制流
1. 使用pickle的什么方法存储数据？
    dump()
2. 使用pickle的什么方法读取数据？
    load()
3. 使用pickle能不能保存为”*.txt”类型的文件？
    可以,后缀名可以任意指定,只不过用文本编辑器打开时,是乱码
"""

"""
动动手:
编写一个程序，这次要求使用pickle将文件（   record.txt (1.1 KB, 下载次数: 3988) ）里的对话按照以下要求腌制成不同文件（没错，是第29讲的内容小改，考考你自己能写出来吗？）：
小甲鱼的对话单独保存为boy_*.txt的文件（去掉“小甲鱼:”）
小客服的对话单独保存为girl_*.txt的文件（去掉“小客服:”）
文件中总共有三段对话，分别保存为boy_1.txt, girl_1.txt，boy_2.txt, girl_2.txt, boy_3.txt, gril_3.txt共6个文件（提示：文件中不同的对话间已经使用“==========”分割）
"""

import pickle

file_name_base_boy  = 'boy_';
file_name_base_girl = 'girl_';
file_count = 1;


#读取record文件
f_record = open('record.txt','r');
file_name_boy  = file_name_base_boy  + str(file_count) + ".pkl";
file_name_girl = file_name_base_girl + str(file_count) + ".pkl";

fid_boy  = open(file_name_boy,'wb');
fid_girl = open(file_name_girl,'wb');

boy_spoken  = [];
girl_spoken = [];

for each_line in f_record:
    print(each_line);
    if each_line[:6]!='======':
        [name,spoken]= each_line.split(':',1);
        if name == '小甲鱼':
            boy_spoken += spoken;
        if name == '小客服':
            girl_spoken += spoken;
    else:
        pickle.dump(boy_spoken,fid_boy);
        pickle.dump(girl_spoken,fid_girl);
        fid_boy.close();
        fid_girl.close();
        boy_spoken  = [];
        girl_spoken = [];
        file_count +=1;
        file_name_boy  = file_name_base_boy  + str(file_count) + ".pkl";
        file_name_girl = file_name_base_girl + str(file_count) + ".pkl";
        fid_boy  = open(file_name_boy,'wb');
        fid_girl = open(file_name_girl,'wb');
        
else:
        pickle.dump(boy_spoken,fid_boy);
        pickle.dump(girl_spoken,fid_girl);
        fid_boy.close();
        fid_girl.close();
        
        
        
#验证代码
def read_pkl():
    file_name_boy1  = 'boy_1.pkl';
    file_name_boy2  = 'boy_2.pkl';
    file_name_boy3  = 'boy_3.pkl';
    file_name_girl1 = 'girl_1.pkl';
    file_name_girl2 = 'girl_2.pkl';
    file_name_girl3 = 'girl_3.pkl';
    
    fid_boy1 = open(file_name_boy1,'rb');
    fid_boy2 = open(file_name_boy2,'rb');
    fid_boy3 = open(file_name_boy3,'rb'); 
    
    fid_girl1 = open(file_name_girl1,'rb');
    fid_girl2 = open(file_name_girl2,'rb');
    fid_girl3 = open(file_name_girl3,'rb'); 
    
    
    boy_spoken_1 = pickle.load(fid_boy1);
    boy_spoken_2 = pickle.load(fid_boy2);
    boy_spoken_3 = pickle.load(fid_boy3);    

    girl_spoken_1 = pickle.load(fid_girl1);
    girl_spoken_2 = pickle.load(fid_girl2);
    girl_spoken_3 = pickle.load(fid_girl3);     
    
    print('-------');
    print(str(boy_spoken_1));
    print('-------');
    print(str(boy_spoken_2));
    print('-------');
    print(str(boy_spoken_3));
    print('-------');
    print(str(girl_spoken_1));
    print('-------');
    print(str(girl_spoken_2));
    print('-------');
    print(str(girl_spoken_3));    
    print('-------');    
    
    fid_boy1.close();
    fid_boy2.close();
    fid_boy3.close();
    fid_girl1.close();
    fid_girl2.close();
    fid_girl3.close();
    
read_pkl();