vc运算符重载,能对不同对象进行+，-，*，/等的运算-vc Operator, can be on different subjects such as arithmetic ,-,*,/

本源码为在vc++环境下编写的string类，该类既可 自动调节大小，又可限制数组越界，还重载了一些运算符-The source code in vc++ environment, prepared by the string class that can automatically adjust the size, but also an array of cross-border restrictions, but also a number of operator overloading