Python ghi vào cuối dòng
Mở tệp ở chế độ nối thêm Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow6 và ghi vào tệp bằng phương thức Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow7. Bên trong phương thức Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow7, một chuỗi Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow9 được truyền. Văn bản này được nhìn thấy trên tệp như hình trên Show Nếu bạn muốn tìm hiểu thêm về các loại chế độ mở tệp khác nhau, vui lòng tham khảo I/O tệp Python Trong khi đọc hoặc ghi vào tệp, chế độ truy cập sẽ chi phối loại thao tác có thể thực hiện trong tệp đã mở. Nó đề cập đến cách tệp sẽ được sử dụng sau khi được mở. Các chế độ này cũng xác định vị trí của Xử lý tệp trong tệp. Định nghĩa của các chế độ truy cập này như sau
Khi tệp được mở ở chế độ nối thêm trong Python, tay cầm được đặt ở cuối tệp. Dữ liệu được ghi sẽ được chèn vào cuối, sau dữ liệu hiện có. ví dụ 1. Chương trình Python để minh họa chế độ Nối và ghiPython3Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow0_______51 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow2____53 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow4 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow5 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow6 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow0 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow1 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow1 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow3 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow4 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow5 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow6 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow5 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow8 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow9 Hello This is Delhi This is Paris This is London Today0 Hello This is Delhi This is Paris This is London Today1
Hello This is Delhi This is Paris This is London Today2 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow0_______51 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow2____53 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow4 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow5 Hello This is Delhi This is Paris This is London Today9 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow00 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow01 ________ 502 ________ 503 ________ 00 Hello This is Delhi This is Paris This is London Today1
Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow0_______51 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow2____53 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow4 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow5 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow12 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow0 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow14 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow3____516 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow0 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow14 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow19 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow14 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow21 Hello This is Delhi This is Paris This is London Today1
Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow23 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow0_______51 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow2____53 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow4 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow5 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow6 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow00 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow32 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow02 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow34 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow0 Hello This is Delhi This is Paris This is London Today1
Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow0_______51 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow2____53 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow4 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow5 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow12 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow0 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow14 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow3____547 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow0 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow14 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow19 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow14 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow21 Hello This is Delhi This is Paris This is London Today1 đầu ra Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow1 ví dụ 2. Nối dữ liệu từ một dòng mớiTrong ví dụ xử lý tệp ở trên, có thể thấy rằng dữ liệu không được thêm vào từ dòng mới. Điều này có thể được thực hiện bằng cách ghi ký tự '\n' xuống dòng vào tệp. Python3Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow54 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow55
Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow0_______51 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow2____53 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow4 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow5 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow6 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow0 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow1 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow1 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow3 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow4 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow5 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow6 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow5 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow8 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow9 Hello This is Delhi This is Paris This is London Today0 Hello This is Delhi This is Paris This is London Today1
Hello This is Delhi This is Paris This is London Today2 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow01 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow0_______51 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow2____53 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow4 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow5 Hello This is Delhi This is Paris This is London Today9 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow0
Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow15 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow02 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow17 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow0 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow02 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow20 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow0
Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow22 ________ 502 ________ 024 ________ 00
Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow0_______51 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow2____53 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow4 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow5 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow12 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow0 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow14 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow3____516 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow0 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow14 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow19 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow14 Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow21 Hello This is Delhi This is Paris This is London Today1 đầu ra Output of Readlines after appending This is Delhi This is Paris This is London TodayTomorrow Ghi chú. '\ n' được coi là một ký tự đặc biệt gồm hai byte ví dụ 3. Sử dụng câu lệnh With trong Pythonvới câu lệnh được sử dụng trong xử lý ngoại lệ để làm cho mã sạch hơn và dễ đọc hơn nhiều. Nó đơn giản hóa việc quản lý các tài nguyên phổ biến như luồng tệp. Không giống như các triển khai ở trên, không cần gọi tệp. close() khi sử dụng với câu lệnh. Bản thân câu lệnh with đảm bảo việc thu thập và giải phóng tài nguyên phù hợp. |