The traditional way is to call 2 methods to perform 1 task, and the methods are executed in sequence
# - *- coding:utf-8-*-import threading
import time
def run(n):print('task',n)
time.sleep(3)if __name__ =='__main__':run('t1')run('t2')
Multi-threaded example
2 Threads execute 1 task concurrently
# - *- coding:utf-8-*-import threading
import time
def run(n):print('task',n)
time.sleep(3)if __name__ =='__main__':
t1=threading.Thread(target=run,args=('t1',))
t2=threading.Thread(target=run,args=('t2',))
t1.start()
t2.start()
Write your own class to inherit threading.Thread
# - *- coding:utf-8-*-import threading
import time
classMyThread(threading.Thread):
def __init__(self,n):super(MyThread,self).__init__()
self.n=n
# There is a run method by default
def run(self):print('runing task',self.n)if __name__ =='__main__':
# In the main method through the object call thread
t1=MyThread('t1')
t2=MyThread('t2')
t1.run()
t2.run()
Use a for loop to start multiple threads
# - *- coding:utf-8-*-import threading
import time
def run(n):print('task',n)
time.sleep(3)if __name__ =='__main__':for i inrange(10):
t=threading.Thread(target=run,args=('t-%s'%i,))
t.start()
Wait for the execution of multiple threads at the same time, and then execute other codes, because threads are running with other codes
# - *- coding:utf-8-*-import threading
import time
def run(n):print('task',n)
time.sleep(3)if __name__ =='__main__':
time_start=time.time()
# Define an empty list to load the thread t instance
t_objects=[]for i inrange(10):
t=threading.Thread(target=run,args=('t-%s'%i,))
t.start()
t_objects.append(t)
# After all threads are executed, execute the following code
# Because the thread and the following code are running at the same time
# If you want to wait for the thread to finish executing before executing other code
# Use join()Method for blocking
# End all t threads uniformly here
for i in t_objects:
t.join()
time_end=time.time()
sun=time_end-time_start
print(sun)
to sum up
The above is an example analysis of python processes and threads introduced by the editor. I hope it will be helpful to you. If you have any questions, please leave a message to me. The editor will reply to you in time!
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