连入互联网的费用会多一些，但是与纸质的程序设计手册、工程参考指南或者大学教科书相比，这些费用可被不到四本书抵消。
Access to the Internet costs more, but compare these fees with just one paper programming manual, engineering reference guide, or college textbook; the cost is absorbed in fewer than four books.
包括几种12864的使用手册，12864的使用说明，源代码及与at89s51相连接的电路图，点阵式LCD 12864接口与程序设计分析等等。
Including the use of some 12,864 manual, 12,864 instructions, source code and the circuit connected AT89S51, dot-matrix interface LCD12864 analysis and program design and so on.
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