中国电信计费系统，话费查询WebService的客户端，内部用socket交互，输入用户号码，返回此用户本月话费总额-China Telecom Billing System, calls WebService client inquiries, internal socket interface, enter the user number, return calls this month, the total amount of this user

支持多线程的socket C# ,包括exe文件 先运行server，输入ip端口号，再运行 client，输入server IP 端口号-socket program ,C# ,multi threads