Visual basic 2005 introduces new language features , including loop continuation , guaranteed resource disposal , mixed access properties , unsigned and nullable data types , operator overloading , partial and generic types , custom events , and Visual basic 2005引入了一些新的语言功能，其中包括循环延续、有保证的资源处置、混合访问属性、无符号数据类型和可空数据类型、运算符重载、分部类型和泛型类型、自定义事件以及
Matrix and vector template classes are defined based upon object - oriented technology ( oot ) . the conventional computation among matrix , vector and number is realized by overriding operators . according to the property of matrix , the scanty reserve way of object data is used , and the computation between matrixes with different reserve way is realized . the template classes is versatile , the program codes can be effectively reused , maintained and extended 基于面向对象技术定义了矩阵和矢量两种模板类，利用运算符重载实现了矩阵、矢量和数之间的常规运算，对于具有不同特性的矩阵，采用了节省的贮存方式，并实现了不同贮存方式下矩阵相互之间的计算，表明所建立的模板类具有通用性，所开发的代码可重复利用率高，而且易于维护和扩充。
