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我如何测试是否为前。84.47.86.34:8080 是活动代理,正在接受请求。像简单的代理检查这样的东西,它会告诉我代理是否有效。谢谢
唯一的方法是实际连接到代理,向它发送一些数据,然后查看它是否回复。