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- 作者：zhaozj
- 发表时间：2020-12-23 10:58
- 来源：未知
Problem Description:
A manufactured item can have one of the solid shapes cone, cylinder or rectangle and can be made from one of a number of materials, such as plastic or metal. Write a program to input the density of the material and the shape and dimensions of the item and to display the weight of the item.(Hint: Different shapes will require different dimensions to be input and different calculations to be performed to calculate the volume. Firstly, ask the user to specify the shape, and then use a switch statement to allow the program to perform input and calculations specific to that shape.)
My Opinoin:
Shall I use a structure to store the item information? For example, store the length, width and height of a rectangle, even the equation to calculating the weight. That will have a good extention. However, the problem is that the elements of the structure is changable. For example, a cyclinder has only two element: radius and height to calculate its cubage while a rectangle needs three: length, width, height. How can I solve this problem? If the problem is solved, there is no need to modify the code when a new item is added. Otherwise, we have no choice but to rewrite the code. Which way should I follow?
TimWang - China
August 18,2004
