求助！！1初次使用simulink中遇到的一个问题。

sanzi10206

运行之后提示：

Warning: The model 'untitled' does not have continuous states, hence Simulink is
using the solver 'VariableStepDiscrete' instead of solver 'ode45'. You can disable
this diagnostic by explicitly specifying a discrete solver in the solver tab of
the Configuration Parameters dialog, or by setting the 'Automatic solver parameter
selection' diagnostic to 'none' in the Diagnostics tab of the Configuration
Parameters dialog

请问是怎么回事，多谢了！

mystrip

是因你的模型是分离采样的，而Simulink的Solver是采用连续积分的。'VariableStepDiscrete'会加快模拟时间。