5.24作业

# str='sdfsfwefdg'
# str1='dk6owuedlww'
# print(str.capitalize())
# print(str1.title())
# print(str1.count('d'))
# print('{|}'.join(str1))
# print(str.split('w'))
#
# str6='abcdefg123456789'
# print(str6.strip('a9'))
# print(str6.lstrip('a9'))
# print(str6.rstrip('a9'))
#
# print(str6.startswith('a'))
# print(str6.endswith('p'))
# print(str6.swapcase())             #将字符串中的英文全部搞成大写的
#
# print(str6.find('7'))
# print(str6.rfind('5'))                 #从右往左搞
#
# str6='abcdefg123456789'
# print(str6.replace('a','mm'))     #将a替换成mm
#
# str5='SKJSKDFIOWEUN'
# str7='ksfkjfklvl'
# print(str7.upper())
# print(str5.lower())
# print(str7.isdigit())
# print(str7.isalpha())
# print(str7.isalnum())
# print(str7.istitle())
# print(str7.islower())
# print(str7.isupper())
#
# list1=[1,2,55,'kls']
# print(list1)
# list11='kkk,kjsndj'
# list2=list(list11)
# print(list2)
# print(type(list2))
#
# list1[2]='mml'
# print(list1)
# print(type(list1))
#
# test='red'
# list6=list(test)
# print(list6)
# list0=['gulf去''555''+--']
# list0.append('绿绿的苹果')
# print(list0)
# list0.extend(list2)
# print(list0)
# list2.insert(1,'090')
# print(list2)

# list1=['test','dcs',888,999]
# print(list1.index(999))
#
# list1=['test','dcs',888,999]
# list1.remove(888)
# print(list1)

# list1=['test','dcs',888,999]
# del list1[-1]
# print(list1)
# del list1[1:]
# print(list1)

# list1=['test','hhh','999','8','apple']
# list1.sort()
# print(list1)
#
# list1=[8,6,9,4,1,2,4,2]
# list1.sort()
# print(list1)

# list1 = [888,999,55,66,22,78,]
# print(sorted(list1,reverse=True))
# print(sorted(list1,reverse=False))

# list1 = [888,999,55,66,22,78,]
# list1.reverse()
# print(list1)

# list1 = [888,999,55,66,22,78,]
# # print(list1.pop())
# # print(list1)
# # print(list1.pop(3))
# # print(list1)

# tuple1 = ('dcs','888','中国',['dcs',666])
# print(tuple1)
# print(type(tuple1))     #<class 'tuple'>数据类型为tuple
#
# print(tuple1[2])       #可以使用索引,结果:中国
# print(tuple1[2:])      #也可以使用切片,结果'中国', ['dcs', 666])

# 元组中的值是不可以被直接修改的,对tuple当前的值可以简介修改
# tuple1 = (33,6,['123',34],88,123)
# list1 = list(tuple1)   #通过list方法把元组转化为列表
# tuple1[2][0] = 'abc'       #根据索引赋值修改元素
# tuple2 = tuple(list1)   #通过tuple方法把将列表转化为元组
# print(tuple2)
# print(tuple1)
#
# dict1 = {'name':'xiaoli','age':'34'}
# print(dict1)
# print(type(dict1))
#
# test1 = [('name','ji'),('age','89')]

# dict1 = {'name':'xiaoli','age':'34'}
# dict1['class']=1833
# print(dict1)
#
# dict1['age']=20
# print(dict1)
#
# dict1 = {'name':'xili','age':'84'}
# for i in dict1.keys():
#     print(i)
#
# for i in dict1.values():
#     print(i)


# dict1 = {}.fromkeys(['name','age'])   
# dict1['name'] = 'zhangsan'   
# print(dict1)
# print({}.fromkeys(['name','age']))  
# print({}.fromkeys(['name','age'],'test'))