[jzyling]

" Derivative input 1 of 'eeee/Integrator13' at time 0.1 is Inf or NaN. Stopping simulation. There may be a singularity in the solution. If not, try reducing the step size (either by reducing the fixed step size or by tightening the error tolerances)." 出现这种情况该如何消除阿？改变步长后还会在其他时间出现这种问题。我选的是定步长ode4 步长为0.001