def proxies_switch(url):
    print("正在进行ip的切换...")
    global ip_num
    stutas = False
    while stutas ==False: #找到合适的ip——post地址
        print("正在验证第%s个ip地址"%(ip_num))
        with open('./IP.txt','r',encoding="utf-8") as text:
            rows = text.readlines()
        print(len(rows))
        if ip_num*5+4 > len(rows):
            print("没有合适的IP地址")
            break
        ip = rows[ip_num*5][:-1]
        post = rows[ip_num*5+1][:-1]
        type = rows[ip_num * 5 + 3][:-1].lower()
        ip_post = ip+":"+post
        response = requests.get(url, headers=header1 if random.random()>0.5 else header2, proxies={type:ip_post})
        stutas = response.ok
        ip_num = ip_num+1
    proxies['https'] = ip_post
    print("第%d个ip地址测试成功"%(ip_num))
    time.sleep(0.5) #切换成功之后sleep一秒 防止新的ip_post被封