在python中读取大txt文件的有效方法

with open('file.txt', 'r') as file:
    line = file.readline()
    while line:
        # 处理每一行的内容
        print(line)
        line = file.readline()

chunk_size = 1024  # 每次读取的字节数
with open('file.txt', 'r') as file:
    chunk = file.read(chunk_size)
    while chunk:
        # 处理每一块的内容
        print(chunk)
        chunk = file.read(chunk_size)

def read_file(file_path):
    with open(file_path, 'r') as file:
        for line in file:
            yield line

# 使用生成器逐行处理文件内容
for line in read_file('file.txt'):
    # 处理每一行的内容
    print(line)