"""
Python Notes
File exercise
"""
1. Opening of files
fin = open(" File name ”）
Read mode ：
Read all ： whole_data = fin.read()
# The disadvantages of this approach ： If the file size is too large, there is not enough memory （ Not commonly used ）
According to the line read ： for line in fin:
print(line) ( This is the most commonly used , convenient ）
print(line.strip()) ( Remove the spaces on both sides of the string ）
Close the way ： fin.close()
2. File write
fout = open(" File name ","w")
This needs to create a new file , So if it's the original document , The original contents of the document will disappear
Write a line of data into the file ：
fout.write(" character string "+str()+"\n") # Note here ！ Must be the same string , If other content needs to be converted
File refresh ： fout.flush()
Refresh is because the data is updated , Refresh to disk as soon as possible , To prevent a lot of writing that cannot be seen when viewing
Closing of files ：
fout.close()
