In this paper, we give difference equations on fractal sets and their corresponding fractal differential equations.An analogue of the classical Euler method in fractal calculus is defined.This fractal Euler method presets a numerical method Love Oil for solving fractal differential equations and finding approximate analytical solutions.Fractal differential equations are solved by using the fractal Euler method.Furthermore, fractal logistic equations and functions Upper Brake Assembly are given, which are useful in modeling growth of elements in sciences including biology and economics.