How to use get and set to remove the last value of a string in a text uicontrol?

Question

theblueeyeswhitedragon 2018-4-11

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/394029-how-to-use-get-and-set-to-remove-the-last-value-of-a-string-in-a-text-uicontrol

回答： Walter Roberson 2018-4-11

 function script4()
fig = figure('units', 'pix', 'position', [300, 300, 300, 300], 'menubar','none','resize', 'off');
pushbuttonh = uicontrol('style', 'pushbutton', 'unit', 'normalized', 'position', [0.3, 0.075, 0.4, 0.1], 'string', 'Clear one character', 'Callback', @pushbuttonh_Callback);
edittexth = uicontrol('style', 'text', 'unit', 'normalized', 'position', [0.1, 0.3, 0.8, 0.5], 'string', 'This is the string');
function pushbuttonh_Callback(source, event)
  currentChar = get(edittexth, 'String');
  if ~isempty(currentChar)
     set(edittexth, 'String', edittexth(1:end-1));
  else 
    set(editexth, 'String', 'There is nothing to delete');
end
end
end