Python：创建多线程（推荐）

import threading, time

def thread_go(s):
    print(s)
    time.sleep(2)

start_time = time.time()
ths = []
for i in range(3):
    t = threading.Thread(target = thread_go, args = ("线程%s" % i, ))
    t.start()
    ths.append(t)

for t in ths:
    t.join() #阻塞直到线程t执行完成
    
print("所有线程执行完成,共耗时：%s" % str(time.time() - start_time))

输出：

线程0
线程1
线程2
所有线程执行完成,共耗时：2.018460273742676