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In this article Xiaobian for you to introduce in detail "python how to output the first two lines of the file", the content is detailed, the steps are clear, the details are handled properly, I hope this "python how to output the first two lines of the file" article can help you solve your doubts, the following follow the editor's ideas slowly in-depth, together to learn new knowledge.

Specific steps for use:

1. First open the python editor and create a new python project.

2. Use the open function to open a file in the python project.

3. Use the for loop to realize the output twice.

4. Finally, use print function and read function to achieve printout to read the contents of the file.

Complete sample code:

F = open ("yisu.txt", "r", encoding= "gbk")

For i in 2:

Print (f.read ())

Expand knowledge:

Syntax of the print () function

Print (* objects, sep='', end='\ nkeeper, file=sys.stdout, flush=False)

Parameter description

Objects: plural, you can output multiple objects at a time. When outputting multiple objects, you need to separate them with ",".

Sep: can be used to interval multiple objects. The default value is a space.

End: can be used to set what to end with. The default value is the newline character\ n, or it can be converted to another string.

File: refers to the file object to be written to.

Flush: whether the output is cached or not is usually determined by file, but if the flush keyword parameter is True, the stream will be forced to refresh.

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