1 os.path.listdir  #以列表的形式展示文件
 2 os.path.getmtime #最后修改的时间
 3 os.path.join     #路径拼接
 4 
 5 import os
 6 filenames = "D:\\pycharm workspace\\appiumframework\\report"
 7 lists = os.listdir(filenames) 8 print(lists) 9 lists.sort(key=lambda fn:os.path.getmtime(filenames+"\\"+fn)) 10 print(lists[-1]) 11 file = os.path.join(filenames,lists[-1]) 12 print(file)

 1 import threading
 2 import time
 3 
 4 class Mythreading(threading.Thread):
 5     def __init__(self,threadID,name,counter):
 6         threading.Thread.__init__(self)    #固定格式
 7         self.threadID = threadID
 8         self.name = name
 9         self.counter = counter
10         print("初始化完成")
11     def run(self):                         #由cpu来处理决定线程间的执行顺序
12         print("开始"+self.name)
13         print_time(self.name,self.counter,5)
14         print("结束"+self.name)
15 
16 def print_time(threasName,counter,delay):
17     while counter:
18         time.sleep(delay)
19         print("%s:%s"%(threasName,time.ctime(time.time())))
20         counter -= 1
21 
22 #创建线程
23 thread1 = Mythreading(1,"thread1",1)
24 thread2 = Mythreading(2,"thread2",2)
25 
26 #开启线程
27 thread1.start()
28 thread2.start()

 1 import threading
 2 import time
 3 
 4 class Mythreading(threading.Thread):
 5     def __init__(self,threadID,name,counter):
 6         threading.Thread.__init__(self)    #固定格式
 7         self.threadID = threadID
 8         self.name = name
 9         self.counter = counter
10         print("初始化完成")
11     def run(self):                         #由cpu来处理决定线程间的执行顺序
12         threadLock.acquire()               #获得锁，成功获得锁定后返回True，可选的参数timeout不填时将一直阻塞直到获得锁定
13         print_time(self.name,self.counter,3)
14         threadLock.release()               #释放锁，开始下一个线程
15 
16 def print_time(threasName,counter,delay):
17     while counter:
18         time.sleep(delay)
19         print("%s:%s"%(threasName,time.ctime(time.time())))
20         counter -= 1
21 
22 threadLock = threading.Lock()
23 threads = []
24 
25 #创建线程
26 thread1 = Mythreading(1,"thread1",1)
27 thread2 = Mythreading(2,"thread2",2)
28 
29 #开启线程
30 thread1.start()
31 thread2.start()
32 
33 # thread1.join()
34 # thread2.join()
35 threads.append(thread1)
36 threads.append(thread2)
37 for t in threads:
38     t.join()       #后边的代码必须等待，等线程运行完成才会往后运行代码
39 
40 print("我的的花儿也谢了")