matlab - 错误 : 'You must call TIC without an output argument before calling TOC without an input argument.'

Question

我在运行我的 gui 时遇到这个错误，我不明白它的含义以及如何修复它...有什么想法吗？

Error using toc
You must call TIC without an output argument before calling TOC without an
input argument.

 Error in hand_rotation2/youPress (line 126)
         c = toc;

 Error while evaluating figure KeyPressFcn

Answer 1

您可以通过以下方式使用tic/toc:

% tic without output argument
tic;
rand(10);
% toc without input argument
te=toc;

或

% tic with output argument
ts=tic;
rand(10);
% toc with input argument
te=toc(ts);

以上场景不能混用，例如

ts=tic;
rand(10);
te=toc;   % wrong! toc must be called as toc(ts)

Error using toc
You must call TIC without an output argument before calling TOC without an input
argument.