python多线程并发测试过程

def work():
    print("1")
def work2():
    print("2")
if __name__ == '__main__':
    work()
    work2()

thread.start_new_thread ( function, args[, kwargs] )

import time
import threading as td

#为线程定义一个函数

def asr_test1(url):
    print("start")
    print(time.ctime(time.time()))


def asr_test2(url):
    print("end")
    print(time.ctime(time.time()))

if __name__ == '__main__':
#target为函数名，args为元组，函数一定要输入形参
    t1=td.Thread(target=asr_test1,args=("",))
    t2 = td.Thread(target=asr_test1, args=("",))
    t1.start()
    t2.start()
结果：
start
Fri Aug  5 16:03:05 2022
start
Fri Aug  5 16:03:05 2022
示例2、主线程等待子线程执行完毕
import threading as th
def work():
    print("1")
def work2():
    print("2")


#原理：启动时会调用python进程，进程调用主线程。
if __name__ == '__main__':
    '''子线程启动'''
    start_time = time.time()
    t1=th.Thread(target=work)
    t2 = th.Thread(target=work2)
    t1.start()
    t2.start()
    #主线程不会等待
    # t1.join(5)#设置主线程等待子线程的执行时间
    end = time.time() - start_time
    print(end)

import time
from threading import Thread
'''
Thread其他初始化参数：
target:指定任务函数
name:指定线程分组
'''
class MyThread(Thread):
    
    def run(self):
        for i in range(100):
            time.sleep(0.1)
            print("请求第{}次".format(self.name,i))


if __name__ == '__main__':
    for i in range(5):
        t=MyThread(name=f"线程{i+1}")
        t.start()

def work(name,age):
    for i in range(5):
        # time.sleep(1)
        print("{}work1----{}---{}".format(name,i,age))


if __name__ == '__main__':
    #给任务函数传递参数，方式一：args参数，里面是元组
    # t=Thread(target=work,args=("",))
    # t.start()
    #方式2：kargs
    t2 = Thread(target=work, kwargs={"name":"wupig","age":18})
    t2.start()

'''需求：并发读取txt中的URL地址'''
list_test=[]
filename="../../url.txt"
file=open(filename,"r")
#列表推导式
list_test=[i.strip("\n") for i in file]
def audio_test():
    while list_test:
        url=list_test.pop()
        print(url)

def atest_thread(THREAD_MAX, Test_Script):
    #创建空列表
    thread_list = []
    for i in range(int(THREAD_MAX)):
        # print("**************",i)
        thread_name = 'thread-' + str(i)
        print("thread_name",thread_name)
        new_thread = threading.Thread(target=Test_Script, args="", name=thread_name)
        thread_list.append(new_thread)
        new_thread.start()
    for thread_obj in thread_list:
        #thread_obj.join：等待至线程中止
        thread_obj.join()

if __name__ == '__main__':
    starttime=time.time()
    count = 10
    # THREAD_MAX=10
    atest_thread(count, audio_test)
    endtime=time.time()-starttime
    print(endtime)