Copy for file contents

os Import 
"" " 
Requirements: implementation file copy the contents of 
ideas: 
source file: read out 
the target file: Write to 
" "" 
DEF the FileCopy (by srcPath, desPath): 
    IF not os.path.exists (by srcPath): # determine whether there 
        print ( "Dude, {} file does not exist, do not copy the" .format (by srcPath)) 
        return 
    iF not os.path.isfile (by srcPath): # whether the folder 
        print ( "{} is not a file, you can not copy." the format (by srcPath)) 
        return 
        # punch source and destination files 
    srcFile = open (srcPath, "rb ") # punch content file read 
    desFile = open (desPath, "wb ") # open file writes to 

    size = os.path .getsize (srcPath) # acquisition source file size, in bytes 


    the while size> 0: 

        Content = srcFile.read (1024) # of bytes read 1024 

        desFile.write(content)  #写入
        size -= 1024

    srcFile.close () # close the file 
    desFile.close () 
IF __name__ == "__main__": # execution program storage, put it plainly, run the program from here

    fileCopy("a.txt","c.txt")