手机 价格,东港黑社会,李罗 黑道
def block(file,size=65536):
while true:
nb = file.read(size)
if not nb:
break
yield nb
def getlinecount(filename):
with open(filename,"r",encoding="utf-8") as f:
return sum(line.count("\n") for line in block(f))
if __name__ == "__main__":
import sys
import os
if len(sys.argv) != 2:
print("error imput argument")
sys.exit(-1)
if not os.path.isfile(sys.argv[1]) :
print(sys.argv + " is not a file")
sys.exit(-1)
start_time = time.time()
print(getlinecount(sys.argv[1]))
print(time.time() - start_time ,"seconds")
如对本文有疑问,请在下面进行留言讨论,广大热心网友会与你互动!! 点击进行留言回复
Python爬虫:Request Payload和Form Data的简单区别说明
浅谈Python中threading join和setDaemon用法及区别说明
Python3-异步进程回调函数(callback())介绍
python继承threading.Thread实现有返回值的子类实例
Python中使用threading.Event协调线程的运行详解
网友评论