SetDefaultPrinter

题目内容：在以二叉树表示算术表达式的基础上,设计一个十进制的四则运算的计算器()

便于汽车服务行业对汽车零配件进行管理，方便办公( U4FBF u6C6 u6C6 u6C09 u09H0 )

用C++实现了梯度下降求多元函数极值的算法,有可能会陷入局部最优解()

该源代码是我精心为朋友准备的，涵盖了各种调用方式和编译方式，花了半个月的业余时间，很高贵啊(The source code is for a friend I painstakingly prepared, covering a variety of ways and the compiler calls the way of spare time to spend half a month, a high贵啊)

说明：  U盘过滤驱动系统源代码主要是用DDK来实现的(U disk drive system source code filter is mainly used to realize the DDK)

计算高阶矩计算高阶矩计算高阶矩计算高阶矩计算高阶矩计算高阶矩计算高阶矩计算高阶矩计算高阶矩计算高阶矩(Trans For Gao)

本书是一本比较全面的VC的编程手册，帮你快速掌握VC，是开发必不可少工具。( A book of VC preference,it is useful for you.)

一个不错的系统字体预览工具附源码。很实用的系统字体预览工具，附有全部源码，可以很直观的看到系统各种字体的模样，便于你管理系统字体。(A good system font preview tool attached source code. A very practical system font preview tool, with full source code, the system can be very intuitive to see the appearance of a variety of fonts, easy to manage your system fonts.)

说明：  By throwing an exception to indicate the occurrence of an error(By throwing an exception to indicate the occurrence of an erro)

VB 下， 进行文件操作 ，二进制操作。生成Txt，然后读取显示。(VB, file operations, binary operations. Generate Txt, then read the display.)