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数据通讯与网络教程是进行网络编程和数据通信人员的一本圣经，共分为十部分，这是第四部分，尤其对准备从事网络编程、数据通信编程的工程人员具有指导意义。-data communication and network Guide is network programming and data communications staff of a Bible, is divided into 10 parts, This is the fourth part, in particular the right to engage in network programming, data communications programming staff is instructive.

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C++程序设计语言 全世界最出名的C++基础教材，从C++基本语法，到C++面向对象，再到C++标准库，都有很详细并且深入浅出的阐述。不论是C++的初学者还是专家，这都是一本不可多得的好书-C programming language of the world"s most famous C based materials, basic syntax from C to the object-oriented C, and then C standard library, there is a detailed and easy manner. Both C beginners or experts, this is a rare books

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设计一个程序实现两个任意长的整数（包括正数和负数）、任意精度实数的算术运算。求两数之商、之积。 -Design a program to achieve two arbitrary length integer (including positive and negative), arbitrary-precision arithmetic of real numbers. Seeking a number of the two operators of the plot.