您可以读取文件，然后写入某些特定行。
line_to_replace = 17 #the line we want to remplace
my_file = 'myfile.txt'
with open(my_file, 'r') as file:
lines = file.readlines()
#Now we have an array of lines. If we want to edit the line 17...
if len(lines) > int(line_to_replace):
lines[line_to_replace] = 'The text you want here'
with open(my_file, 'w') as file:
file.writelines( lines )
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