Python every day delicious (18)-linecache. Getline () read a specific row in the file

In python, The Getline method in linecache in the standard library can be used to read a specific row from a file. For example: Import Linecache
Print Linecache. Getline ( ' 2.1 _ open. py ' , 4 )

Will return to my previous exampleCodeThe output result is as follows:
F = open ('/home/Evergreen/desktop/test ')

View the implementation in linecache (I am using ulipad, So I directly move the cursor at linecache and press F6)

Linecache. py

 

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Python every day delicious (18)-linecache. Getline () read a specific row in the file

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