In this tutorial, we are going to learn about two important methods of python file handling – tell() and seek(), here we will learn how to set file pointer position at a specific position and how to read content from there? By Pankaj Singh Last updated : September 17, 2023 ...
File pointers are an essential element of a file handling mechanism in any programming language. Because of file pointers, programmers can handle the position of the cursor in a file from within the program. seek() and tell(): Theseek()method helps in altering the position of the file handl...
We will also use tell and seek methods for file handling.Python - Reading a FileLet's start by learning how to read a file.readline() function is used to read a line in the document. It can be used like: >>> myFile.readline()...
withopen('example.txt','r')asfile:# 将文件指针定位到文件开头file.seek(0,0)print(file.tell())# 输出 0# 将文件指针定位到第三个字节处file.seek(2,0)print(file.tell())# 输出 2# 将文件指针定位到文件末尾file.seek(0,2)print(file.tell())# 输出文件的字节大小 Python Copy 2. 定位到文件...
Python File seek() 方法 Python File(文件) 方法 概述 seek() 方法用于移动文件读取指针到指定位置。 语法 seek() 方法语法如下: fileObject.seek(offset[, whence]) 参数 offset -- 开始的偏移量,也就是代表需要移动偏移的字节数 whence:可选,默认值为
Theopen()Python method is the primary file handling function. The basic syntax is: file_object = open('file_name', 'mode') Theopen()function takes two elementary parameters for file handling: 1. Thefile_nameincludes the file extension and assumes the file is in thecurrent working directory...
file打开文件有两种方式,函数用file()或者open()。打开后读入文件的内容用read()函数,其读入是从文件当前指针位置开始,所以需要控制指针位置用: 一、先介绍下file读入的控制函数: seek(offset,where): where=0从起始位置移动,1从当前位置移动,2...
Python File seek() 方法Python File(文件) 方法概述seek() 方法用于移动文件读取指针到指定位置。语法seek() 方法语法如下:fileObject.seek(offset[, whence])参数offset -- 开始的偏移量,也就是代表需要移动偏移的字节数 whence:可选,默认值为 0。给offset参数一个定义,表示要从哪个位置开始偏移;0代表从文件...
Python offers several methods for file handling. In addition to the standard operations like reading and writing to the files, there are methods to manipulate the file pointer effectively. In this tutorial, you’ll learn how to use theseek()function tomove the position of a file pointerwhile ...
Python3 File seek() 方法 Python3 File(文件) 方法 概述 seek() 方法用于移动文件读取指针到指定位置。 语法 seek() 方法语法如下: fileObject.seek(offset[, whence]) 参数 offset -- 开始的偏移量,也就是代表需要移动偏移的字节数,如果是负数表示从倒数第