在对电压做AD采样时，经常会遇到运放电路，而运放倍数的求解经常让人头疼，此程序就可轻松的求解运放倍数。程序中还包括了十六进制转十进制，绘制曲线，和对曲线求斜率的方法。-When we use the ADC to sample voltage,we often face the difficult amplifier and working out the parameter of amplifier is hard.Now the problem is solved by this program.The program include the methods of hex to dec,curveplotting and differential coefficient.