s函数动画时,遇到错误提示:“Error in block 'gundongyuanpan/S-Function' while executing M-File S-function block 's_anm81s', flag = 2 (update), at time 0. MATLAB error message:<BR>Index exceeds matrix dimensions”<BR>这里面的“index”和“ matrix dimensions”分别指的什么啊?<BR>知道的指点一下啊<BR>