在python中将给定的较大文件减少到特定的文件大小

with open('large_file.txt', 'rb') as source_file, open('small_file.txt', 'wb') as target_file:
    # 文件处理代码

with open('large_file.txt', 'rb') as source_file, open('small_file.txt', 'wb') as target_file:
    for line in source_file:
        target_file.write(line)

MAX_FILE_SIZE = 1024  # 目标文件的最大大小（字节数）

with open('large_file.txt', 'rb') as source_file, open('small_file.txt', 'wb') as target_file:
    total_size = 0
    for line in source_file:
        if total_size + len(line) > MAX_FILE_SIZE:
            break
        target_file.write(line)
        total_size += len(line)

source_file.close()
target_file.close()