self đại diện cho thể hiện của lớp. Bằng cách sử dụng “self” chúng ta có thể truy cập các thuộc tính và phương thức của lớp trong python. Nó liên kết các thuộc tính với các đối số đã cho Show Lý do bạn cần sử dụng bản thân. là do Python không sử dụng cú pháp @ để chỉ các thuộc tính thể hiện. Python đã quyết định thực hiện các phương thức theo cách làm cho thể hiện của phương thức đó được truyền tự động nhưng không được nhận tự động. tham số đầu tiên của các phương thức là thể hiện mà phương thức được gọi trên Nói một cách rõ ràng hơn, bạn có thể nói rằng SELF có Đặc điểm sau-
Python3Model is audi a4 color is blue Model is ferrari 488 color is green0 Model is audi a4 color is blue Model is ferrari 488 color is green1 Model is audi a4 color is blue Model is ferrari 488 color is green2 Model is audi a4 color is blue Model is ferrari 488 color is green3 Model is audi a4 color is blue Model is ferrari 488 color is green4 Model is audi a4 color is blue Model is ferrari 488 color is green5 Model is audi a4 color is blue Model is ferrari 488 color is green6______00 Model is audi a4 color is blue Model is ferrari 488 color is green1 Model is audi a4 color is blue Model is ferrari 488 color is green2 Model is audi a4 color is blue Model is ferrari 488 color is green3 Model is audi a4 color is blue Model is ferrari 488 color is green4 Model is audi a4 color is blue Model is ferrari 488 color is green5 Model is audi a4 color is blue Model is ferrari 488 color is green6 Model is audi a4 color is blue Model is ferrari 488 color is green7 Model is audi a4 color is blue Model is ferrari 488 color is green4 Model is audi a4 color is blue Model is ferrari 488 color is green0 Model is audi a4 color is blue Model is ferrari 488 color is green00 Model is audi a4 color is blue Model is ferrari 488 color is green1 Model is audi a4 color is blue Model is ferrari 488 color is green02 Model is audi a4 color is blue Model is ferrari 488 color is green03 Model is audi a4 color is blue Model is ferrari 488 color is green04 Model is audi a4 color is blue Model is ferrari 488 color is green3______04 Model is audi a4 color is blue Model is ferrari 488 color is green07____06 Model is audi a4 color is blue Model is ferrari 488 color is green7 Model is audi a4 color is blue Model is ferrari 488 color is green00 Model is audi a4 color is blue Model is ferrari 488 color is green1 Model is audi a4 color is blue Model is ferrari 488 color is green02 Đầu ra Model is audi a4 color is blue Model is ferrari 488 color is green9 Một ví dụ khác về việc sử dụng SELF Python3Model is audi a4 color is blue Model is ferrari 488 color is green03 Model is audi a4 color is blue Model is ferrari 488 color is green1 Model is audi a4 color is blue Model is ferrari 488 color is green2 Model is audi a4 color is blue Model is ferrari 488 color is green06 Model is audi a4 color is blue Model is ferrari 488 color is green07 Model is audi a4 color is blue Model is ferrari 488 color is green4 Model is audi a4 color is blue Model is ferrari 488 color is green09 Model is audi a4 color is blue Model is ferrari 488 color is green4 Model is audi a4 color is blue Model is ferrari 488 color is green5 Model is audi a4 color is blue Model is ferrari 488 color is green6______00 Model is audi a4 color is blue Model is ferrari 488 color is green14 Model is audi a4 color is blue Model is ferrari 488 color is green2______00____917 Model is audi a4 color is blue Model is ferrari 488 color is green03 Model is audi a4 color is blue Model is ferrari 488 color is green19 Model is audi a4 color is blue Model is ferrari 488 color is green2______00____922 Model is audi a4 color is blue Model is ferrari 488 color is green03 Model is audi a4 color is blue Model is ferrari 488 color is green24 Model is audi a4 color is blue Model is ferrari 488 color is green25 Model is audi a4 color is blue Model is ferrari 488 color is green4 Model is audi a4 color is blue Model is ferrari 488 color is green5 Model is audi a4 color is blue Model is ferrari 488 color is green28 Model is audi a4 color is blue Model is ferrari 488 color is green0 Model is audi a4 color is blue Model is ferrari 488 color is green1 Model is audi a4 color is blue Model is ferrari 488 color is green2 Model is audi a4 color is blue Model is ferrari 488 color is green3 Model is audi a4 color is blue Model is ferrari 488 color is green4 Model is audi a4 color is blue Model is ferrari 488 color is green34 Model is audi a4 color is blue Model is ferrari 488 color is green6 Model is audi a4 color is blue Model is ferrari 488 color is green0 Model is audi a4 color is blue Model is ferrari 488 color is green37 Model is audi a4 color is blue Model is ferrari 488 color is green2______03 Model is audi a4 color is blue Model is ferrari 488 color is green4 Model is audi a4 color is blue Model is ferrari 488 color is green41 Model is audi a4 color is blue Model is ferrari 488 color is green6 Model is audi a4 color is blue Model is ferrari 488 color is green0 Model is audi a4 color is blue Model is ferrari 488 color is green44 Model is audi a4 color is blue Model is ferrari 488 color is green25 Model is audi a4 color is blue Model is ferrari 488 color is green46 Model is audi a4 color is blue Model is ferrari 488 color is green47 Model is audi a4 color is blue Model is ferrari 488 color is green48 Model is audi a4 color is blue Model is ferrari 488 color is green03 Model is audi a4 color is blue Model is ferrari 488 color is green50 Model is audi a4 color is blue Model is ferrari 488 color is green51 Model is audi a4 color is blue Model is ferrari 488 color is green6 Model is audi a4 color is blue Model is ferrari 488 color is green53 Model is audi a4 color is blue Model is ferrari 488 color is green54 Model is audi a4 color is blue Model is ferrari 488 color is green55 Model is audi a4 color is blue Model is ferrari 488 color is green03 Model is audi a4 color is blue Model is ferrari 488 color is green50 Model is audi a4 color is blue Model is ferrari 488 color is green58 Model is audi a4 color is blue Model is ferrari 488 color is green6 Model is audi a4 color is blue Model is ferrari 488 color is green60 Model is audi a4 color is blue Model is ferrari 488 color is green54 Model is audi a4 color is blue Model is ferrari 488 color is green1 Model is audi a4 color is blue Model is ferrari 488 color is green63 Model is audi a4 color is blue Model is ferrari 488 color is green64 ________ 965 ________ 966 Model is audi a4 color is blue Model is ferrari 488 color is green1 Model is audi a4 color is blue Model is ferrari 488 color is green68 _______03____04____001____002 Model is audi a4 color is blue Model is ferrari 488 color is green3______04____005 Model is audi a4 color is blue Model is ferrari 488 color is green06 Model is audi a4 color is blue Model is ferrari 488 color is green07 Model is audi a4 color is blue Model is ferrari 488 color is green08 Model is audi a4 color is blue Model is ferrari 488 color is green09 Model is audi a4 color is blue Model is ferrari 488 color is green10 Model is audi a4 color is blue Model is ferrari 488 color is green11 Đầu ra Model is audi a4 color is blue Model is ferrari 488 color is green
Bản thân phải được cung cấp dưới dạng tham số Đầu tiên cho phương thức Instance và hàm tạo. Nếu bạn không cung cấp nó, nó sẽ gây ra lỗi Python3Model is audi a4 color is blue Model is ferrari 488 color is green12 Model is audi a4 color is blue Model is ferrari 488 color is green2 Model is audi a4 color is blue Model is ferrari 488 color is green3 Model is audi a4 color is blue Model is ferrari 488 color is green4 Model is audi a4 color is blue Model is ferrari 488 color is green5 Model is audi a4 color is blue Model is ferrari 488 color is green17 Model is audi a4 color is blue Model is ferrari 488 color is green2______03 Model is audi a4 color is blue Model is ferrari 488 color is green4 Model is audi a4 color is blue Model is ferrari 488 color is green21 Model is audi a4 color is blue Model is ferrari 488 color is green54 Model is audi a4 color is blue Model is ferrari 488 color is green1 Model is audi a4 color is blue Model is ferrari 488 color is green24 Model is audi a4 color is blue Model is ferrari 488 color is green03 Model is audi a4 color is blue Model is ferrari 488 color is green04 Model is audi a4 color is blue Model is ferrari 488 color is green3____04 Model is audi a4 color is blue Model is ferrari 488 color is green29____954 Model is audi a4 color is blue Model is ferrari 488 color is green1 Model is audi a4 color is blue Model is ferrari 488 color is green1 Model is audi a4 color is blue Model is ferrari 488 color is green33 Model is audi a4 color is blue Model is ferrari 488 color is green34 Model is audi a4 color is blue Model is ferrari 488 color is green35 Model is audi a4 color is blue Model is ferrari 488 color is green36 Model is audi a4 color is blue Model is ferrari 488 color is green37_______038 Model is audi a4 color is blue Model is ferrari 488 color is green39 Model is audi a4 color is blue Model is ferrari 488 color is green6 Model is audi a4 color is blue Model is ferrari 488 color is green41 Model is audi a4 color is blue Model is ferrari 488 color is green42 ________ 94 ________ 024 ________ 103 ________ 104 Model is audi a4 color is blue Model is ferrari 488 color is green47 Model is audi a4 color is blue Model is ferrari 488 color is green48 Model is audi a4 color is blue Model is ferrari 488 color is green49 Model is audi a4 color is blue Model is ferrari 488 color is green50 Model is audi a4 color is blue Model is ferrari 488 color is green51 Model is audi a4 color is blue Model is ferrari 488 color is green52 Model is audi a4 color is blue Model is ferrari 488 color is green52 Model is audi a4 color is blue Model is ferrari 488 color is green35 Model is audi a4 color is blue Model is ferrari 488 color is green02
self là tham số trong Instance Method và người dùng có thể sử dụng tên tham số khác thay cho nó. Nhưng nên sử dụng self vì nó làm tăng khả năng đọc mã và đó cũng là một cách thực hành lập trình tốt Các lớp có cần thiết trong Python không?Ưu điểm của việc sử dụng các lớp trong Python
. Việc sử dụng các lớp cũng cung cấp một chức năng khác của mô hình lập trình hướng đối tượng này, đó là tính kế thừa. Classes provide an easy way of keeping the data members and methods together in one place which helps in keeping the program more organized. Using classes also provides another functionality of this object-oriented programming paradigm, that is, inheritance.
Mọi tệp Python có nên có một lớp không?Có lẽ là không . Các tệp Python là "mô-đun". Các mô-đun chỉ nên chứa mã nào có thể tái sử dụng độc lập. Nếu điều đó bao gồm một số lớp, đó là tiêu chuẩn, thì điều đó hoàn toàn ổn.
Tôi có thể sử dụng cái gì thay vì một lớp trong Python?6 lựa chọn thay thế cho các lớp trong Python. Tốc độ phát triển, thời gian thực thi, tuần tự hóa (khử) và khả năng bảo trì đều đóng một vai trò trong việc làm cho mã của bạn tỏa sáng. . bộ dữ liệu. Tuples là một kiểu dữ liệu gốc. . từ điển. . Bộ dữ liệu được đặt tên. . attrs. . lớp dữ liệu. . Pydantic Các lớp có bị lạm dụng trong Python không?Điểm mấu chốt. Các lớp Python là một con dao hai lưỡi
. Nhưng chúng bị lạm dụng rất nhiều . |
