with open('123.txt', 'r') as f:
while True:
str = f.read(1024) # 每次读取1024字节
if not str:
break
print(str, end='') # 设置print不自动添加换行符
python 循环读取大文件内容举例
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转载自blog.csdn.net/ljz0929/article/details/119685349
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