Python打开文件的写法

open(file, mode='r', buffering=-1, encoding=None, errors=None, newline=None, closefd=True, opener=None)

# 打开一个名为example.txt的文件，以只读模式
file = open("example.txt", "r")

content = file.read()
print(content)

This is an example text file.
It contains some sample text for demonstration.

line1 = file.readline()
line2 = file.readline()
print(line1)
print(line2)

This is an example text file.

It contains some sample text for demonstration.

lines = file.readlines()
for line in lines:
    print(line.strip())

This is an example text file.
It contains some sample text for demonstration.

file_write = open("example_write.txt", "w")
file_write.write("This is a new text file created for writing.\n")
file_write.close()

file_append = open("example_write.txt", "a")
file_append.write("This line is appended to the existing file.\n")
file_append.close()

file.close()

with open("example.txt", "r") as file:
    content = file.read()
    print(content)