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damnit1989damnit1989
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python examples
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‎classModule.py‎

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# -*- coding: utf-8 -*-
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' a class module '
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# from testclass import TestImport
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import testclass
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a = testclass.TestImport().getName
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a()
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import testclass
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a = testclass.TestImport()
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a.getName()
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if __name__ == '__main__':
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pass
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print('good')

‎client.py‎

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# -*- coding: utf-8 -*-
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import socket
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import json
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s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
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# 建立连接:
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s.connect(('127.0.0.1', 9999))
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# 接收欢迎消息:
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print(s.recv(1024).decode('utf-8'))
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k = 0
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dict = {'one':1,'two':2,'three':3,'four':4}
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for data in [b'Michael', b'Tracy', b'Sarah',b'lmm']:
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# 发送数据:
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# s.send(data)
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s.send(json.dumps(dict))
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print(s.recv(1024))
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s.send(b'exit')
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s.close()

‎coroutine.py‎

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def consumer():
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r = ''
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while True:
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n = yield r
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if not n:
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return
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print('[CONSUMER] Consuming %s...' % n)
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r = '200 OK'
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def produce(c):
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c.send(None)
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n = 0
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while n < 5:
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n = n + 1
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print('[PRODUCER] Producing %s...' % n)
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r = c.send(n)
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print('[PRODUCER] Consumer return: %s' % r)
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c.close()
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c = consumer()
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produce(c)

‎dict.py‎

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# -*- coding: utf-8 -*-
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#可变数据类型，当赋值给另一个变量时，其实是做了一次引用，两个变量指向同一对象
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a = {'one':1,'two':2}
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b = a
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b['three'] = 3
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print(b,a)
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c = ['one','two']
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d = c
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d.append('three')
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print(d,c)
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str = '-'
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str = ''.join(c)
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print(str)

‎export.py‎

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# -*- coding: utf-8 -*-
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from file import *
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import pdb
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fromFile = 'open.txt'
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toFile = 'write.txt'
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# inStr = input('please input your file name:')
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# toFile = inStr+'.txt'
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# print(toFile)
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# readFile(fromFile,toFile)
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test_list()
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#调用可变参数
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list = [1,2,3,4]
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# tup = (1,2)
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# name = input('姓名:')
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# age = input('年龄:')
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# height = input('身高:')
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# list = [name,age,height]
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print(changeArg(*list))
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#调用关键字参数
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dict = {'height':180}
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persion('lmm',18,**dict)
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# pdb.set_trace()#打断点
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print(recur(3))
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l = []
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n = 1
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while n<=10:
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l.append(n)
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n += 1
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print(type(l))

‎file.py‎

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# -*- coding: utf-8 -*-
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def readFile(fromFile,toFile):
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#python2.x版本不支持encoding参数
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# with open(fromFile,'r',encoding="UTF-8") as f:
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with open(fromFile,'r') as f:
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# content = f.read()
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for line in f.readlines():
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writeFile(toFile,line)
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def writeFile(fileName,content):
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# with open(fileName,'a',encoding="UTF-8") as op:
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with open(fileName,'a') as op:
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op.write(content)
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def test_list(L = []):
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L.append('END')
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print(L)
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# def test_list(L = None):
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# L.append('END')
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# print(L)
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# test_list([1,2,3])
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# test_list()
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#定义可变参数和定义一个list或tuple参数相比，仅仅在参数前面加了一个*号。
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#在函数内部，参数numbers接收到的是一个tuple
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#调用可变参数
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def changeArg(*nums):
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print(type(nums))
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sum = 0
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for i in nums:
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sum += i*i
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return sum
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#关键字参数
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def persion(name,age,**arg):
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print('name:',name,'age:',age,'other:',arg)
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#递归函数
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def recur(n):
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if n == 1:
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return 1
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return n*recur(n-1)

‎first.py‎

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# -*- coding: utf-8 -*-
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# print('请输入你的名字:');
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# name = input();
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# print("你的名字是:",name);
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# nameList = ['one','two','three']
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# print(nameList);
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# print(len(nameList));
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' a test module '
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__author__ = 'Michael Liao'
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import sys
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def test():
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args = sys.argv
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if len(args)==1:
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print('Hello, world!')
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print(args)
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elif len(args)==2:
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print('Hello, %s!' % args[1])
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print(args)
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else:
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print('Too many arguments!')
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if __name__=='__main__':
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test()

‎main.py‎

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# -*- coding: utf-8 -*-
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' a test module '
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__author__ = 'lmm'
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# import module
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# from ../module import test
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import sys
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sys.path.append("..") #从上级目录导入模块
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from module import test
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test()
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if __name__ == '__main__':
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print('this is main')
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pass
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# test()
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# print(__name__)

‎module.py‎

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# -*- coding: utf-8 -*-
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' a test module '
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__author__ = 'lmm'
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import sys
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def test():
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args = sys.argv
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print(args[0],args[1],args[2])
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num = len(args)
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print(num)
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print(__name__)
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#当我们在命令行运行该模块文件时，Python解释器把一个特殊变量__name__置为__main__
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if __name__ == '__main__':
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test()
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# print(__name__)

‎open.txt‎

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1.我正在测试
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2.我正在测试
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3.我正在测试
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4.我正在测试
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5.this is a test content to write to txt file
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6.this is a test content to write to txt file
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7.this is a test content to write to txt file

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