Introduction - If you have any usage issues, please Google them yourself
Demand for the volume of 3 rectangular column, please write a object-based programs. Data members, including length (length), width (W), height (H). Require member functions to achieve the following functions: 1, 3 are input from the keyboard long rectangular column, width, height 2, calculate the volume of rectangular column 3, the output of three rectangular column volumes write the program, the Machine commissioning and operation.