matlabDigitalSigalProcess内有文件若干

				function delete(obj)
				
				%   Author: T. Krauss
				%   Copyright (c) 1988-98 by The MathWorks, Inc.
				%   $Revision: 1.2 $
				
				obj = struct(obj);
				for i = 1:length(obj)
				    fig = get(obj(i).h,'parent');
				    ud = get(fig,'userdata');
				    
				    ind = find(obj(i).h == [ud.Objects.fdax.h]);
				    if isempty(ind)
				        error('Not a valid object')
				    end
				        
				    objud = get(obj(i).h,'userdata');
				    
				    % need to delete any lines which are children of this axes
				    lines = ud.Objects.fdline.h;
				    if length(lines)>1
				        lines = [lines{:}];
				    end
				    for j = 1:length(lines)
				        if get(lines(j),'parent') == obj(i).h
				            delete(ud.Objects.fdline(j))
				        end
				    end
				    ud = get(fig,'userdata');
				    
				    delete(obj(i).h)
				    
				    ud.Objects.fdax(ind) = [];
				    
				    set(fig,'userdata',ud)
				end
				if ~isempty(obj)
				    setpos(ud.Objects.fdax,fig)
				end