Python threading current_thread()用法及代碼示例

Python threading.current_thread() 方法

current_thread() 是 Python 中線程模塊的內置方法。它用於返回當前 Thread 對象，該對象對應於調用者的控製線程。

模塊：

    import threading

用法:

    current_thread()

參數：

• None

返回值：

該方法的返回類型是一個Thread類對象，它返回當前處於活動狀態的Thread對象。

例：

# Python program to explain the use of 
# current_thread() method in Threading Module

import time
import threading

def thread_1(i):
    time.sleep(2)
    print("Active current thread right now:", (threading.current_thread()))
    print('Value by Thread 1:', i)

def thread_2(i):
    time.sleep(5)
    print("Active current thread right now:", (threading.current_thread()))
    print('Value by Thread 2:', i)
    
def thread_3(i):
    print("Active current thread right now:", (threading.current_thread()))
    print("Value by Thread 3:", i)
    
# Creating sample threads 
thread1 = threading.Thread(target=thread_1, args=(1,))
thread2 = threading.Thread(target=thread_2, args=(2,))
thread3 = threading.Thread(target=thread_3, args=(3,))

print("Active current thread right now:", (threading.current_thread()))
#3 Initially it is the main thread that is active

# Starting the threads
thread1.start()
thread2.start()
thread3.start()

輸出

Active current thread right now:<_MainThread(MainThread, started 140048551704320)>
Active current thread right now:<Thread(Thread-3, started 140048508823296)>
Value by Thread 3:3
Active current thread right now:<Thread(Thread-1, started 140048525608704)>
Value by Thread 1:1
Active current thread right now:<Thread(Thread-2, started 140048517216000)>
Value by Thread 2:2