not in – đánh giá là True nếu giá trị trong toán hạng bên trái không xuất hiện trong chuỗi được tìm thấy trong toán hạng bên phải. Ví dụ: ‘house’ trong ‘Hello world’ trả về True vì chuỗi con house không có trong chuỗi Hello world
Python cung cấp hai toán tử thành viên để kiểm tra hoặc xác thực tư cách thành viên của một giá trị. Nó kiểm tra tư cách thành viên trong một chuỗi, chẳng hạn như chuỗi, danh sách hoặc bộ dữ liệu.
trong toán tử. Toán tử 'in' được sử dụng để kiểm tra xem một ký tự/chuỗi con/phần tử có tồn tại trong một chuỗi hay không. Đánh giá là Đúng nếu nó tìm thấy phần tử được chỉ định trong một chuỗi nếu không thì Sai. Ví dụ,
'G' in 'GeeksforGeeks' # Checking 'G' in String
True
'g' in 'GeeksforGeeks' #Checking 'g' in string since Python is case-sensitive,returns False
False
'Geeks' in ['Geeks', 'For','Geeks'] #Checking 'Geeks' in list of strings
True
10 in [10000,1000,100,10] #Checking 10 in list of integers
True
dict1={1:'Geeks',2:'For',3:'Geeks'} # Checking 3 in keys of dictionary
3 in dict1
True
Python3
# Python program to illustrate
# Finding common member in list
# using 'in' operator
list11_______0
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
1
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
2
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
3
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
4
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
3
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
6
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
3
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
8
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
3
not overlapping
0
not overlapping
1
not overlapping
2_______1_______0
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
1
not overlapping
5_______1_______3
not overlapping
7
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
3
not overlapping
9_______1_______3
x is NOT present in given list
y is present in given list
1
not overlapping
1
x is NOT present in given list
y is present in given list
3
x is NOT present in given list
y is present in given list
4
x is NOT present in given list
y is present in given list
5
x is NOT present in given list
y is present in given list
6
x is NOT present in given list
y is present in given list
7_______22_______8
x is NOT present in given list
y is present in given list
4
x is NOT present in given list
y is present in given list
5
True
1
True
2_______32_______3
True
4
True
5
True
6
x is NOT present in given list
y is present in given list
7_______32_______8
True
9
True
2_______32_______3
True
4
False
True
False
3
True
6
Đầu ra
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
Ví dụ tương tự mà không sử dụng toán tử in
Python3
# Python program to illustrate
# Finding common member in list
False
True
False
7
False
True
False
8
False
True
False
9 # Python program to illustrate0
x is NOT present in given list
y is present in given list
7_______199_______2
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
0 # Python program to illustrate4
x is NOT present in given list
y is present in given list
7_______199_______6
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
0 # Python program to illustrate4
x is NOT present in given list
y is present in given list
7_______22_______3 # Finding common member in list1
x is NOT present in given list
y is present in given list
5
x is NOT present in given list
y is present in given list
6
True
2_______199_______2____200_______6
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
0
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
2
x is NOT present in given list
y is present in given list
7_______22_______3 # Finding common member in list1
x is NOT present in given list
y is present in given list
5
True
1
True
2_______199_______6# Finding common member in list6
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
0
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
2
x is NOT present in given list
y is present in given list
7_______22_______3 # Finding common member in list1
x is NOT present in given list
y is present in given list
5 list13
True
4# Python program to illustrate4list16
True
2_______22_______3 list19
x is NOT present in given list
y is present in given list
5 list13
True
4# Python program to illustrate4
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
04
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
05
x is NOT present in given list
y is present in given list
8
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
07
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
0
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
0
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
10
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
11
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
12
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
2
x is NOT present in given list
y is present in given list
7_______1_______12 # Python program to illustrate4
list11_______0
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
1
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
2
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
3
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
4
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
3
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
6
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
3
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
8
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
3
not overlapping
0
not overlapping
1
not overlapping
2_______1_______0
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
1
not overlapping
5_______1_______3
not overlapping
7
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
3
not overlapping
9_______1_______3
x is NOT present in given list
y is present in given list
1
not overlapping
1
x is NOT present in given list
y is present in given list
8
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
42
x is NOT present in given list
y is present in given list
7_______32_______3
True
4
True
5
True
6
True
8
True
9
x is NOT present in given list
y is present in given list
7_______32_______3
True
4
False
True
False
3
True
6
Đầu ra
not overlapping
Toán tử 'không có trong'- Đánh giá là đúng nếu nó không tìm thấy một biến trong chuỗi đã chỉ định và sai nếu ngược lại
Python3
# Python program to illustrate
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
56
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
57
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
0
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
59
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
60
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
0
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
62
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
63
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
0
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
1
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
66
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
3
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
62
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
3
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
70
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
3
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
72
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
3
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
74
not overlapping
1
x is NOT present in given list
y is present in given list
8
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
77
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
78
x is NOT present in given list
y is present in given list
5
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
63
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
81
x is NOT present in given list
y is present in given list
7_______32_______3
True
4
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
85
True
6
True
8
True
9
x is NOT present in given list
y is present in given list
7_______32_______3
True
4
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
92
True
6
x is NOT present in given list
y is present in given list
8
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
95_______22_______5
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
63_______1_______81
x is NOT present in given list
y is present in given list
7_______32_______3
True
4
not overlapping
02
True
6
True
8
True
9
x is NOT present in given list
y is present in given list
7_______32_______3
True
4
not overlapping
09
True
6
Đầu ra
x is NOT present in given list
y is present in given list
Toán tử nhận dạng
Các toán tử nhận dạng được sử dụng để so sánh các đối tượng nếu cả hai đối tượng thực sự thuộc cùng một kiểu dữ liệu và chia sẻ cùng một vị trí bộ nhớ
Có các toán tử nhận dạng khác nhau như
Toán tử 'is' – Đánh giá là True nếu các biến ở hai bên của toán tử trỏ đến cùng một đối tượng và sai nếu ngược lại
Python3
not overlapping
11
not overlapping
12
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
57
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
0
not overlapping
0
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
60
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
0
not overlapping
0
True
3
not overlapping
not overlapping
not overlapping
not overlapping
not overlapping
77
not overlapping
21
not overlapping
22
not overlapping
23
not overlapping
24
not overlapping
23
not overlapping
26
Đầu ra
True
Ở đây trong ví dụ đã cho, cả hai biến x và y đều được gán giá trị 5 và cả hai đều chia sẻ cùng một vị trí bộ nhớ, đó là lý do trả về True
Toán tử thành viên trong Python là gì?
Toán tử tư cách thành viên là toán tử được sử dụng để xác thực tư cách thành viên của một giá trị . Nó kiểm tra tư cách thành viên trong một chuỗi, chẳng hạn như chuỗi, danh sách hoặc bộ dữ liệu. trong toán tử. Toán tử 'in' được sử dụng để kiểm tra xem một giá trị có tồn tại trong một chuỗi hay không.
Có bao nhiêu loại toán tử thành viên được sử dụng trong Python?
Trong Python, có hai toán tử thành viên. (trong, không trong).
4 toán tử trong Python là gì?
Toán tử Python .
toán tử số học
Toán tử gán
Toán tử so sánh
Toán tử logic
Toán tử nhận dạng
nhà khai thác thành viên
Toán tử bitwise
