Three ways Python reads the contents of a file and compares

The file for this experiment is a 60M file totaling 392660 lines of content.

Program One:

defOne (): Start=time.clock () fo= Open (file,'R') FC=fo.readlines () Num=0 forLinchFc:tup= L.rstrip ('\ n'). Rstrip (). Split ('\ t') Num= Num+1fo.close () End=Time.clock ()Printend-StartPrintNum

Running Result: 0.812143868027s

Program Two:

defBoth (): Start=time.clock () Num=0 with open (file,'R') as F: forLinchF:tup= L.rstrip ('\ n'). Rstrip (). Split ('\ t') Num= Num+1End=time.clock () times= (end-start)Print TimesPrintNum

Running time: 0.74222778078

Program Three:

defthree (): Start=time.clock () fo= Open (file,'R') L=fo.readline () Num=0 whileL:tup= L.rstrip ('\ n'). Rstrip (). Split ('\ t') L=fo.readline () Num= Num+1End=Time.clock ()Printend-StartPrintNum

Running time: 1.02316120797

The result can be drawn, program two speed is the fastest.

Three ways Python reads the contents of a file and compares