读取文件：可以使用read()方法来读取整个文件内容，或者使用readline()方法逐行读取。也可以使用readlines()方法将所有行作为列表返回。content = file.read() # 读取整个文件内容line = file.readline() # 逐行读取文件内容lines = file.readlines() # 将所有行作为列表返回 写入文件：可以使用write()方法将数据写入...
# 以二进制模式读取文件 with open('example.bin', 'rb') as file: binary_data = file.rea...
Python的字符串对象提供了一个splitlines()方法,可以将字符串按行分割,并返回一个列表。 withopen('file.txt','r')asfile:content=file.read()lines=content.splitlines()forlineinlines:print(line) 1. 2. 3. 4. 5. 6. 使用splitlines()方法,我们可以将文件内容读取为一个字符串,然后将其按行分割为一个...
代码示例:读取txt文件的前几行 defread_first_lines(file_path,num_lines):withopen(file_path,'r')asfile:lines=file.readlines()returnlines[:num_lines]file_path='example.txt'num_lines=5lines=read_first_lines(file_path,num_lines)print(lines) 1. 2. 3. 4. 5. 6. 7. 8. 9. 代码示例:逐...
read_lines.py #!/usr/bin/python with open('works.txt', 'r') as f: lines = f.readlines() print(lines) for line in lines: print(line.strip()) In the example, we read the contents of the file with readlines. We print the list of the lines and then loop over the list with a...
不需要手动关闭文件file_path="data.txt"withopen(file_path,"r")asfile:content=file.read()#...
with open("data.txt","r") as myfile:forlineinmyfile: listOfLines.append(line.strip())print(listOfLines)print("***Read file line by line using with open() and while loop ***")#Open filewith open("data.txt","r") as fileHandler:#Read next lineline =fileHandler.readline()#check...
read() file.close() 复制代码 使用with语句自动关闭文件,并使用read()方法读取文件内容: with open('filename.txt', 'r') as file: content = file.read() 复制代码 使用readlines()方法逐行读取文件内容并存储为列表: with open('filename.txt', 'r') as file: lines = file.readlines() 复制...
Filenameis'zen_of_python.txt'.Fileisclosed. 1. 2. 但是此时是不可能从文件中读取内容或写入文件的,关闭文件时,任何访问其内容的尝试都会导致以下错误: 复制 f.read() 1. Output: 复制 ---ValueErrorTraceback(mostrecentcalllast)~\AppData\Local\Temp/ipykernel_9828/3059900045.pyin<module>--->1f....
使用read方法读取整个文件内容: file = open('file.txt', 'r', encoding='utf-8')content = file.read() # 将整个文件内容作为一个字符串返回print(content)file.close() 使用readlines方法按行读取文件内容并存储到列表中: file = open('file.txt', 'r', encoding='utf-8')lines = file.readlines()...