這篇文章主要介紹了Python實現模擬分割大文件及多線程處理的方法,涉及Python文件讀取、分割及多線程相關操作技巧,需要的朋友可以參考下
本文實例講述了Python實現模擬分割大檔案及多執行緒處理的方法。分享給大家參考,具體如下:
#!/usr/bin/env python #--*-- coding:utf-8 --*-- from random import randint from time import ctime from time import sleep import queue import threading class MyTask(object): """具体的任务类""" def __init__(self, name): self.name = name self._work_time = randint(1, 5) def work(self): print("Task %s is start : %s, sleep time= %d" % (self.name, ctime(), self._work_time)) sleep(self._work_time) print("Task %s is end : %s" % (self.name, ctime())) class MyThread(threading.Thread): """多线程的类""" def __init__(self, my_queue): self.my_queue = my_queue super(MyThread, self).__init__() def run(self): while True: if self.my_queue.qsize() > 0: self.my_queue.get().work() else: break def print_split_line(num=30): print("*" * num) if __name__ == "__main__": print_split_line() import my_read_file # 分割文件 sf = my_read_file.SplitFiles(r"F:\multiple_thread_read_file.txt", line_count=300) file_num = sf.split_file() queue_length = file_num my_queue = queue.LifoQueue(queue_length) threads = [] for i in range(queue_length): file_name = sf.get_part_file_name(i) mt = MyTask(file_name) my_queue.put_nowait(mt) for i in range(queue_length): mtd = MyThread(my_queue) threads.append(mtd) for i in range(queue_length): threads[i].start() for i in range(queue_length): threads[i].join() print_split_line()
以上是Python模擬分割大檔案以及多執行緒處理的實作方法的詳細內容。更多資訊請關注PHP中文網其他相關文章!