本程序使用了改进欧拉法求解微分方程dy=x+exp(y),[0,1]。过程中使用了牛顿迭代法进行了简单的求根，避免了应用函数的繁琐处理，可以作为欧拉法与牛顿法的示例程序。-This procedure uses the Euler method to improve the differential equation dy = x+ exp (y), [0,1]. The course of using the Newton iterative method for the simple roots, to avoid the red tape to deal with the application of function can be used as Euler-Newton method with an example of the procedure.