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"""

文件按照字节数量来一步步读取

"""

# 写入一个文件

file = open("Test.txt", "w")

file.write("Hello World, My Name is Hao.")

file.close()

# 读取文件到新的文件中

old_file = open("Test.txt", "r")

new_file = open("Test(备份).txt", "w")

while True:

temp = old_file.read(5)

if len(temp) > 0: # 读取字节大于0就写入

new_file.write(temp)

else: # 等于0或者小于0就表示无字节可以读取

break

old_file.close()

new_file.close()