simulationparameters:在自己新建的model里。工具栏simulation里的configurationparameters里左边solver中,需先选择定步长还是变步长,simulink的simulation->configurationparameters里面设置。默认可变的(variable-step)自动步长的(auto),如果要改变步长,可把variable-step改车fixed-step,stepsize(fundamentalsampletim...