watchon.m

信号实验常用的simulink模型和mfile,可直接在matlan下运行。

function figNumber=watchon;
%WATCHON Sets the current figure pointer to the watch.
%	figNumber=WATCHON will set the current figure's pointer
%	to a watch.
%
%	See also WATCHOFF.

%	Ned Gulley, 6-21-93
%	Copyright (c) 1984-94 by The MathWorks, Inc.

% If there are no windows open, just set figNumber to a flag value.
if isempty(get(0,'Children')),
    figNumber=NaN;
else
    figNumber=gcf;
    set(figNumber,'Pointer','watch');
end