笨办法41学会说面向对象【pyinstaller安装使用

urllib库安装

先切换到pip所在目录

D:\Program Files\JetBrains\PyCharm 2017.3.3\untitled>cd /d c:\

c:\>cd c:\Users\ceshi\AppData\Local\Programs\Python\Python36\Scripts\

执行下载安装指令【哦 这里装了个exe打包工具 要装urllib的话 直接把名字改了就成

c:\Users\ceshi\AppData\Local\Programs\Python\Python36\Scripts>pip install Pyinstaller

以下是打包exe的，与urllib无关

c:\Users\ceshi\AppData\Local\Programs\Python\Python36\Scripts>pyinstaller.exe -F d:\pytest\gai.py

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课文内容待补

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回来了。。

要被这节课搞疯  python2和python3的鸿沟 对于刚入门的小辣鸡来说实在是。。 心疼自己(ಥ_ಥ)

装的是python3.6.4

 1 import random
 2 from urllib import request　　　　 #from urllib import urlopen
 3 import sys
 4
 5 WORD_URL = "http://learncodethehardway.org/words.txt"
 6 WORDS = []
 7
 8 PHRASES = {
 9     "class %%%(%%%):":
10       "Make a class named %%% that is-a %%%.",
11     "class %%%(object):\n\tdef __init__(self, ***)" :
12       "class %%% has-a __init__ that takes seulf and *** parameters.",
13     "class %%%(object):\n\tdef ***(self, @@@)":
14       "class %%% has-a function named *** that takes self and @@@ parameters.",
15     "*** = %%%()":
16       "Set *** to an instance of class %%%.",
17     "***.***(@@@)":
18       "From *** get the *** function, and call it with parameters self, @@@.",
19     "***.*** = '***'":
20       "From *** get the *** attribute and set it to '***'."
21 }
22
23 # do they want to drill phrases first
24 if len(sys.argv) == 2 and sys.argv[1] == "english":
25     PHRASE_FIRST = True
26 else:
27     PHRASE_FIRST = False
28
29 # load up the words from the website
30 for word in request.urlopen(WORD_URL).readlines():  　　　　#for word in urlopen(WORD_URL).readlines():
31     WORDS.append(word.strip())
32
33 def convert(snippet, phrase):
34     class_names = [w.capitalize() for w in
35                    random.sample(WORDS, snippet.count("%%%"))]
36     other_names = random.sample(WORDS, snippet.count("***"))
37     results = []
38     param_names = []
39
40     for i in range(0, snippet.count("@@@")):
41         param_count = random.randint(1,3)
42         param_names.append(', '.join(str(random.sample(WORDS, param_count))))  　　 #param_names.append(', '.join(random.sample(WORDS, param_count))) 
43
44     for sentence in snippet, phrase:
45         result = sentence[:]
46
47         # fake class names
48         for word in class_names:
49             result = result.replace("%%%", "word", 1)　　　　　　#result = result.replace("%%%", word, 1)
50
51         # fake other names
52         for word in other_names:
53             result = result.replace("***", "word", 1)　　　　　　#result = result.replace("***", word, 1)
54
55         # fake parameter lists
56         for word in param_names:
57             result = result.replace("@@@", word, 1)
58
59         results.append(result)
60
61     return results
62
63 # keep going until they hit CTRL-D
64 try:
65     while True:
66         snippets = list(PHRASES.keys())
67         random.shuffle(snippets)
68
69         for snippet in snippets:
70             phrase = PHRASES[snippet]
71             question, answer = convert(snippet, phrase)
72             if PHRASE_FIRST:
73                 question, answer = answer, question
74
75             print(question)
76
77             input("> ")
78             print("ANSWER:  %s\n\n" % answer)
79 except EOFError:
80     print("\nBye")

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绕得晕乎乎。。 最近转做发行运营公司的测试。 感觉原本仅存的脑子也被吃掉了 写在小本本上背吧。。

在左边有一个Python代码片段列表，右面是他们的解释

class X(Y)：创建一个叫X的类，并继承Y

class X(object): def __init__(self, J)：类X有一个__init__方法，该方法有self和J两个参数

class X(object): def M(self, J)：类X有一个叫M的函数，该函数有self和J两个参数

foo = X()：给foo赋值为类X的一个实例

foo.M(J)：从foo里调用M函数，传递的参数为self和J

foo.K = Q：从foo里调用K属性，并将其设置为Q。