#dic={1:'alex','age':35,'hobby':{'girl_name':'铁锤','age':45},'is_handsome':True} # dic={'age':'alex','age':35,'hobby':{'girl_name':'铁锤','age':45},'is_handsome':True} # print(dic) #字典两大特点：无序，键唯一 #字典的创建 # a=list() # print(a) # dic={'name':'alex'} # dic1={} # dic2=dict((('name','alex'),)) # print(dic2) # dic3=dict([['name','alex'],]) # print(dic3) # dic1={'name':'alex'} # dic1['age']=18 # print(dic1) #键存在，不改动，返回字典中相应的键对应的值 # ret=dic1.setdefault('age',34) # print(ret) # # #键不存在，在字典中中增加新的键值对，并返回相应的值 # ret2=dic1.setdefault('hobby','girl') # print(dic1) # print(ret2) #查 通过键去查找 # dic3={'age': 18, 'name': 'alex', 'hobby': 'girl'} # # print(dic3['name']) # # print(list(dic3.keys())) # print(list(dic3.values())) # print(list(dic3.items())) # li=[1,2,34,4] # li[2]=5 # dic3={'age': 18, 'name': 'alex', 'hobby': 'girl'} # dic3['age']=55 # print(dic3) # dic4={'age': 18, 'name': 'alex', 'hobby': 'girl'} # # dic5={'1':'111','2':'222'} # dic5={'1':'111','name':'222'} # # dic4.update(dic5) # print(dic4) # print(dic5) # dic5 = {'name': 'alex', 'age': 18, 'class': 1} # dic5.clear() # 清空字典 # print(dic5) # del dic5['name'] #删除字典中指定键值对 # print(dic5) # print(dic5.pop('age')) #删除字典中指定键值对，并返回该键值对的值 # ret=dic5.pop('age') # print(ret) # print(dic5) # a = dic5.popitem() #随机删除某组键值对，并以元组方式返回值 # print(a, dic5) # del dic5 #删除整个字典 # print(dic5) #5 其他操作以及涉及到的方法 # dic6=dict.fromkeys(['host1','host2','host3'],'test') # print(dic6)#{'host3': 'test', 'host1': 'test', 'host2': 'test'} # # dic6['host2']='abc' # print(dic6) # dic6=dict.fromkeys(['host1','host2','host3'],['test1','tets2']) # print(dic6)#{'host2': ['test1', 'tets2'], 'host3': ['test1', 'tets2'], 'host1': ['test1', 'tets2']} # # dic6['host2'][1]='test3' # print(dic6)#{'host3': ['test1', 'test3'], 'host2': ['test1', 'test3'], 'host1': ['test1', 'test3']} # av_catalog = { # "欧美":{ # "www.youporn.com": ["很多免费的,世界最大的","质量一般"], # "www.pornhub.com": ["很多免费的,也很大","质量比yourporn高点"], # "letmedothistoyou.com": ["多是自拍,高质量图片很多","资源不多,更新慢"], # "x-art.com":["质量很高,真的很高","全部收费,屌比请绕过"] # }, # "日韩":{ # "tokyo-hot":["质量怎样不清楚,个人已经不喜欢日韩范了","听说是收费的"] # }, # "大陆":{ # "1024":["全部免费,真好,好人一生平安","服务器在国外,慢"] # } # } # av_catalog['欧美']["www.youporn.com"][1]='高清午马' dic={5:'555',2:'666',4:'444'} # dic.has_keys(5) # print(5 in dic) # print(sorted(dic.items())) # dic5={'name': 'alex', 'age': 18} # for i in dic5: # print(i,dic5[i])+ # for i,v in dic5.items(): # print(i,v) #String 操作 # a="Let's go " # print(a) # 1 * 重复输出字符串 # print('hello'*20) # 2 [] ,[:] 通过索引获取字符串中字符,这里和列表的切片操作是相同的,具体内容见列表 # print('helloworld'[2:]) #关键字 in # print(123 in [23,45,123]) # print('e2l' in 'hello') # 4 % 格式字符串 # print('alex is a good teacher') # print('%s is a good teacher'%'alex') #5 # a='123' # b='abc' # d='44' # # # c=a+b # # # print(c) # # # c= ''.join([a,b,d]) # print(c) # String的内置方法 # st='hello kitty {name} is {age}' # # print(st.count('l')) # 统计元素个数 # print(st.capitalize()) # 首字母大写 # print(st.center(50,'#')) # 居中 # print(st.endswith('tty3')) # 判断是否以某个内容结尾 # print(st.startswith('he')) # 判断是否以某个内容开头 # print(st.expandtabs(tabsize=20)) # print(st.find('t')) # 查找到第一个元素，并将索引值返回 # print(st.format(name='alex',age=37)) # 格式化输出的另一种方式 待定：?:{} # print(st.format_map({'name':'alex','age':22})) # print(st.index('t')) # print('asd'.isalnum()) # print('12632178'.isdecimal()) # print('1269999.uuuu'.isnumeric()) # print('abc'.isidentifier()) # print('Abc'.islower()) # print('ABC'.isupper()) # print(' e'.isspace()) # print('My title'.istitle()) # print('My tLtle'.lower()) # print('My tLtle'.upper()) # print('My tLtle'.swapcase()) # print('My tLtle'.ljust(50,'*')) # print('My tLtle'.rjust(50,'*')) # print('\tMy tLtle\n'.strip()) # print('\tMy tLtle\n'.lstrip()) # print('\tMy tLtle\n'.rstrip()) # print('ok') # print('My title title'.replace('itle','lesson',1)) # print('My title title'.rfind('t')) # print('My title title'.split('i',1)) # print('My title title'.title()) #摘一些重要的字符串方法 #1 print(st.count('l')) # print(st.center(50,'#')) # 居中 # print(st.startswith('he')) # 判断是否以某个内容开头 # print(st.find('t')) # print(st.format(name='alex',age=37)) # 格式化输出的另一种方式 待定：?:{} # print('My tLtle'.lower()) # print('My tLtle'.upper()) # print('\tMy tLtle\n'.strip()) # print('My title title'.replace('itle','lesson',1)) # print('My title title'.split('i',1))
字符串方法