The second part of Python

What data type?
     int 1, 2, 3 is used to operate the
     FLOAT 1.2

     STR is used to store certain information "" '

     List =[1,2, 3 "yes", is] used to store a large amount of information
     Touple (1, 2, 3,) is used to store immutable lists, read-only

     DiC ={"I": "Jin Yuanyuan"  "You": "Beijing"  is used to store data relationships for easy search
     Set = {1, 2, 3, 4} to find the set of differences, set, intersection


#字符串的大写

#字符串的操作

# s = ' Alexwusir '
# # S1 = s.capitalize ()
# # print (S1)
#
# #大写, lowercase
# s2 = S.upper ()
# s3 = S.lower ()
#
# Print (S2, S3)

# s_str = ' aceq '
#
# your_input = input ("Please enter a verification code, not case sensitive:")
#
# if s_str.lower () = = Your_input.lower ():
# Print ("Input succeeded")
# Else:
# print ("Please re-enter")

#大小写翻转
# s = "Alex Wusir"
#
# s3 = S.swapcase ()
# Print (S3)
#每个隔开的单词首字母大写
# s = "Alex Wusir"
# S4 = S.title ()
# Print (S4)
#居中
# s = "Alexwusir"
#
# S5 = S.center (20, ' * ')
# Print (S5)

#公共办法
# s = "Alex two High"
#
# L = Len (s)
# print (L)

#以什么开头
# s = "Alexyouaresogood"
# s7 =s.startswith ("Alex")
# s7 =s.startswith ("Ex", 2,3)
# Print (S7)
#find can be indexed, cannot find return-1
#index通过元素找索引, I can't find an error.
# s = "Alexwuswir"
# S8 = S.index ("A")
# Print (S8, type (s8))
#rstrip从右边开始删除, Lstrip Delete from the left
# s = "* * * Alex wusir%%%"
# s9= S.strip ("*%")
# Print (S9)

# s = "Alexaa Wusrila"
# s10 = S.count ("a")
#
# Print (S10)


#split splitting a string into a list
#
# s = "Alexl Wusir;lambaba"
# L = S.split ("a")
#
# print (L)
#
# s = "My Name {name}, this year is {age}, hobby {Hobb}, say again my name {name}". Format (name= "Taibai", age=23,hobb= "Girl")
# print (s)


# s = "To see things in the neighborhood"
# s10 = S.replace ("Neighborhood", "Lao Wang", 1)
# Print (S10)

s = "Siidjaijdlakdla"

# for I in S:
# Print (i)

s = "Fadacandadjik Cang jing Empty ksdalks"

# if "Cang jing empty" not in S:
# print ("Your comments have sensitive words")

# s = "123e2"
# Print (float (s))


Li = [1, ' A ', ' B ', 2,3, ' a ']
# Li.insert (0,55) #按照索引去增加
# Print (LI)

# li.append (' aaa ') #增加到最后
# li.append ([i]) #增加到最后
# Print (LI)

# li.extend ([' q,a,w ']) #迭代的去增
# li.extend ([' q,a,w ', ' aaa '])
# li.extend (' a ')
# li.extend (' abc ')
# li.extend (' A,b,c ')
# Print (LI)
#
# li.extend ([' q,a,w '])
# li.extend (' Qwa ')
# Print (LI)

Li = [1, 2, 3, 4]

# L1 = Li.pop (1)
# print (L1)

# del Li[1:3]
# Print (LI)

# Li.remove (2)
# Print (LI)

# li.clear ()
# Print (LI)

#改正
LST = [1, 2, 3, 4, 3]

# Lst[1] = "ASBD"
# Print (LST)
# Lst[1:3] = [' A ', ' B ']
# Print (LST)
# a = [45,3,3]
# # Print (A.count (3))
# Print (A.index (3))

A = [1,3,43,45,2,123,34,34]

# s10 = A[5:0:-1]
S10 = a[-1::-1]
Print (S10)
# A.sort (Reve
# rse=true)
# Print (a)
# A.reverse ()
# Print (a)

The second part of Python