能够用来生成加密的excel文档，vb代码-Implementing Password Security on Excel Workbooks Using Visual Studio .NET

使用 VC++ 编写一元四次方程求解的核心代码，生成动态库、静态库、COM组件、.NET组件，然后使用 vb、vc、c#、excel、html 调用。-Use VC++ prepare a quartic equation for solving the core code, build a dynamic library, static libraries, COM components, .NET assembly, and then use vb, vc, c#, excel, html