我設(shè)計(jì)了一個(gè)Pushbutton，剛開始顯示“開始”，點(diǎn)擊之后顯示“暫停”，再點(diǎn)擊之后顯示“開始”，machine1start=uicontrol(machine1,...'Style','Pushbutton',...'Position',[50,180,80,30],...'String','開始',...'CallBack',...['k=get(machine1start,''String'');'...'if （k==''開始''）; '...'set(machine1start,''String'',''暫停'');'...'else ;',...'set(machine1start,''String'',''開始'');'...]);運(yùn)行錯(cuò)誤：??? Error using ==> k=get(machine1start,'String');if （k=='開始'）; set(machine1start,'String','暫停');else;set(machine1start,'String','開始');Error: The input character is not valid in MATLAB statements or expressions.??? Error while evaluating uicontrol Callback