Homework 4 3/9 Console I/O

1. Do Project 4 in Chapter 2

計算通勤開銷



2. Do Project 5 in Chapter 2

計算年折舊金額



3. Do Project 6, in Chapter 2

計算代糖的安全攝取量



4. Do Project 7, in Chapter 2

計算販賣機找零程式