# 字典常用方法 clear(), get(), pop(), update(),copy(),items(), popitem(),values(), fromkeys(), keys(),setdefault() #字典的表示方法：info_dic={
   'name':'zp','age':22,'sex':'male'}# 常用操作：#1.存/取info_dic={
   'name':'zp','age':22,'sex':'male'}  print(info_dic['name11111111'])#找不到则报错了  print(info_dic.get('name',None))  print(info_dic.get('name222222',None))#get方法找不到不报错，可以自己设定默认值#pop：key存在则弹出值，不存在则返回默认值，如果没有默认值则报错,字典pop删除必须带key值，否则报错# print(info_dic.pop('nam123123123123123123e',None))# print(info_dic)# print(info_dic.popitem())# print(info_dic)# info_dic['level']=10# print(info_dic)## 　　　　删除info_dic={
   'name':'egon','age':18,'sex':'male'}# info_dic.pop()# info_dic.popitem()# del info_dic['name']## 　　　　键s，值s，键值对info_dic={
   'name':'egon','age':18,'sex':'male'}# print(info_dic.keys())# print(info_dic.values())# print(info_dic.items())# for k in info_dic:#     # print(k,info_dic[k])#     print(k)# print('========>')# for k in info_dic.keys():#     print(k)# for val in info_dic.values():#     print(val)# for k,v in info_dic.items(): #k,v=('name', 'zp')#     print(k,v)# 　　　　长度# info_dic={'name':'zp','age':22,'sex':'male'}# print(len(info_dic))## 　　　　循环## 　　　　包含in# info_dic={'name':'zp','age':22,'sex':'male'}# print('name' in info_dic)# print('name' in info_dic.keys())# print('egon' in info_dic.values())# print(('name','zp') in info_dic.items())#掌握info_dic={
   'name':'zp','age':22,'sex':'male'}# info_dic.update({'a':1,'name':'zp'})# print(info_dic)# info_dic['hobbies']=[]# info_dic['hobbies'].append('study')# info_dic['hobbies'].append('read')# print(info_dic)#setdefault:key不存在则设置默认值，并且放回值默认值#key存在则不设置默认，并且返回已经有的值# info_dic.setdefault('hobbies',[1,2])# print(info_dic)# info_dic.setdefault('hobbies',[1,2,3,4,5])# print(info_dic)# info_dic={'name':'zp','age':22,'sex':'male'}# {'name':'zp','age':22,'sex':'male','hobbies':['study']}# info_dic.setdefault('hobbies',[]).append('study')# {'name':'zp','age':22,'sex':'male','hobbies':['study','read']}# info_dic.setdefault('hobbies',[]).append('read')# {'name':'zp','age':22,'sex':'male','hobbies':['study','read','sleep']}# info_dic.setdefault('hobbies',[]).append('sleep')# l=info_dic.setdefault('hobbies',[])# print(l,id(l))# print(id(info_dic['hobbies']))# print(info_dic)#了解# d=info_dic.copy()# print(d)# info_dic.clear()# print(info_dic)# d=info_dic.fromkeys(('name','age','sex'),None)# print(d)# d1=dict.fromkeys(('name','age','sex'),None)# d2=dict.fromkeys(('name','age','sex'),('zp',22,'male'))# print(d1)# print(d2)# info=dict(name='zp',age=22,sex='male')# print(info)## info=dict([('name','zp'),('age',22)])# print(info)