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更新代码文件
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‎1.1 python简介和环境搭建/code/test.py

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import socket
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print("hello\n")
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print("world!")
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var = input("请输入一段内容: ")
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print("你输入了： " + str(var))

‎1.2 数值类型/code/1.2.py

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# -*- coding:utf-8 -*-
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a = 0o101
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print("a="+str(a))
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b=64
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print('b='+str(b))
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c=-237
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print('c='+str(c))
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d=0x80
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print('d='+str(d))
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e=-0x92
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print('e='+str(e))
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longint = 9999 ** 8
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print("longint="+str(longint))
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#bool 基本测试
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print(bool(1))
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print(bool(True))
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print(bool('0'))
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print(bool([]))
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print(bool((1,)))
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#使用bool数
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foo = 42
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bar = foo<42
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print(bar)
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print(bar+10)
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print('%s' %bar)
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print('%d' %bar)
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#无_nozero_()
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class C:pass
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c=C()
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print('无_nozero_():'+str(bool(c)))
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# 双精度浮点
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print(0.0)
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print(-777.)
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print(-5.555567119)
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print(96e3 * 1.0)
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print(-1.609E-19)
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#复数
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print("复数....")
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print(complex(2, 4))
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print(1.23e-045+6.7e+089j)
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# 十进制浮点
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from decimal import *
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print("十进制浮点....")
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dec=Decimal('.1')
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print(dec)
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print(Decimal(.1))
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print(dec +Decimal(.1))
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#转换工厂
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print("转换工厂....")
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print(int(4.2222222))
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print(float(4))
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print(complex(4))
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#进制转换
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print("进制转换....")
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print(hex(255))
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print(oct(255))
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print(oct(0x111))
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#ASCII转换
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print("进制转换....")
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print(chr(76))
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print(ord('L'))

‎1.3 字符串、列表、元组、字典和集合/code/dic.py

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# -*- coding:utf-8 -*-
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dict ={'Name':'Zara','Age':7,'Class':'First'}
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print("dict['Name']: ", dict['Name'])
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print("dict['Age']: ", dict['Age'])
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#访问不存在的key
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#print(dict['Xuanhun'])
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#修改值
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print("修改前",dict['Age'])
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dict['Age']=8# update existing entry
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print("修改后: ", dict['Age'])
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#删除
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del dict['Age']# 删除键是'Name'的条目
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#print("dict['Age']: ", dict['Age'])#引发异常
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dict.clear() # 清空词典所有条目
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print(dict)
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del dict # 删除词典
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print(dict)

‎1.3 字符串、列表、元组、字典和集合/code/list.py

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# -*- coding:utf-8 -*-
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#创建list
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print("创建list.......")
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list1 =['physics','chemistry',1997,2000]
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list2 =[1,2,3,4,5]
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list3 =["a","b","c","d"]
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print("list1[0]: ", list1[0])
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print("list2[1:5]: ", list2[1:5])
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#更新
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print("更新list.......")
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print("索引 2 的值: ")
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print(list1[2])
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list1[2]=2001
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print("索引2更新后的值为 : ")
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print(list1[2])
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#删除
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print("删除list.......")
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print("删除索引2处的值之前: ")
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print(list1)
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del(list1[2])
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print("删除索引2处的值之后: \n",list1)
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#操作符
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print("操作符.......")
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print('list1:',list1)
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print('list2:',list2)
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list4 = list1 + list2
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print("list1 + list2 :",list4)
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list5 = ['hello']*4
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print('[\'hello\']*4:',list5)
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#截取
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print("列表截取.......")
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L =['玄','魂','玄魂!']
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##读取第二个元素
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print(L[2])
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##读取倒数第二个元素
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print(L[-2])
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##从第二个开始截取
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print(L[1:])
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‎1.3 字符串、列表、元组、字典和集合/code/set.py

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# -*- coding: UTF-8 -*-
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s1=set('abcdde')
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s2=set([1,2,3,4,5])
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s3 = frozenset("xuanhun")
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print(type(s1))
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print(type(s3))
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print(s2)
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#输出集合内容
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for item in s3:
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print(item)
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#update
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s2=set([1,2,3,4,5])
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print("原始数据：",s2)
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s2.add("j")
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print("添加数据后：",s2)
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s2.remove(3)
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print("删除数据后：",s2)
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s2.update([6,7,8,9])
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print("update数据后：",s2)
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#union
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s1=set('abcdde')
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s2=set([1,2,3,4,5])
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s4=s1|s2
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print("s1|s2",s4)
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#inter
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print("s1&s2",s1&s2)
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#dif
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print("s1-s2",s1 -s2)
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print("s1 dif s2",s1.difference(s2))
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‎1.3 字符串、列表、元组、字典和集合/code/string.py

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# -*- coding:utf-8 -*-
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#声明字符串
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str1 ='Hello World!'
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str2 ="hello 玄魂！"
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print('声明字符串.....')
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print(str1)
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print(str2)
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#访问字符内容
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print('访问字符内容.....')
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print("str1[0]: ", str1[0])
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print("str2[1:5]: ", str2[1:5])
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#字符串操作符
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print('字符串操作符.....')
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a ="Hello"
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b ="Python"
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print("a + b 输出结果：", a + b)
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print("a * 2 输出结果：", a *2)
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print("a[1] 输出结果：", a[1])
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print("a[1:4] 输出结果：", a[1:4])
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if("H" in a):
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print("H 在变量 a 中")
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else:
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print("H 不在变量 a 中")
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if ("M" not in a):
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print("M 不在变量 a 中")
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else:
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print("M 在变量 a 中")
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print (r'\n')
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print (R'\n')
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#格式化
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print('字符串格式化.....')
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print("My name is %s and weight is %d kg!"%('玄魂',71))
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print("formart method call:My name is {name} and weight is {weight} kg!".format(name="玄魂",weight=71))
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#三引号
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print('三引号.....')
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hi = '''hi
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i am 玄魂'''
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print(hi)
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‎1.3 字符串、列表、元组、字典和集合/code/tuple.py

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# -*- coding:utf-8 -*-
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tup0=()#空元组
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tup1 = ('physics', 'chemistry', 1997, 2000)
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tup2 = (1, 2, 3, 4, 5 )
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tup3 = "a", "b", "c", "d"
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tup4= (50,)#元组中只包含一个元素时，需要在元素后面添加逗号
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print("tup0: ", tup0)
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print("tup1: ", tup1)
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print("tup2[1:5]: ", tup2[1:5])
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print(tup4*4)
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print(tup2+tup3)
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print(tup1[1:])
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print(tup1[-2])

‎1.4 流程控制/code/flow.py

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# -*- coding: UTF-8 -*-
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x=int(input('请输入一个整数:'))
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if x==0:
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print('%d ==0' %x)
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elif x<0:
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print('%d <0' %x)
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else:
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print('%d >0' %x)
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#for 
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print('for 测试.....')
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words = ['cat', 'window', 'defenestrate']
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for word in words:
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print(word,len(word))
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#利用切片复制列表
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print('利用切片复制列表.....')
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for word in words[:]:
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if len(word)>6:
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words.insert(0,word)
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print(words)
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#while
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print('while.....')
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count=0
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while(count<9):
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print('the index is:',count)
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count +=1
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#range
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print('range.....')
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a=range(5)
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b=range(2,5)
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c=range(2,5,2)
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print(a)
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print(b)
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for i in c:
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print("value is",i)
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#break
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print('break.....')
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for n in range(2, 10):
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for x in range(2, n):
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if n % x == 0:
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print(n, 'equals', x, '*', n//x)
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break
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else:
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print(n, 'is a prime number')
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#continue
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print('continue.....')
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for num in range(2,10):
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if(num %2 ==0):
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continue
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print(num)
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#pass
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def funcname(parameter_list):
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pass
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class classname(object):
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pass
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if a==0:
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pass
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else:
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pass

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