Question

如何在不输入任何值的情况下直接关闭输入对话框？对于'menu'函数，我们可以使用while选项== 0表示未选择的选项，但输入对话框怎么样？

prompt = {'输入收益：'，'输入范围：'};

dlg_title ='输入值';

num_lines = 1;

def = {'20'，'256'}; ％默认

answer = inputdlg（prompt，dlg_title，num_lines，def）;

%%%获取两个输入值%%%%

％A = getfield（回答，{1}）; ％第一个输入字段

A = str2double（回答{1}）;

％B = getfield（回答，{2}）; ％second输入字段

B = str2double（回答{2}）;

假设我有一个如图所示的输入对话框，我可以用完整的方式对循环进行建模

Answer 1

您无法阻止它被关闭，但您可以使用while循环重新打开它，直到用户输入有用的值。

done = false;
while ~done
    a=inputdlg('enter a number')
    num = str2double(a{1}); %# will turn empty and strings into NaN
    if isnumeric(num)
       done = true;
    else
       %# keep running while loop
       %# you can pop up an errordlg box here to tell the user what was wrong.
       %# It would be nice if you were to set the inputs that passed the test
       %# as defaults for the next call of inputdlg. Nothing sucks as much 
       %# as having to completely re-fill a form because of a small typo
    end
end

如何在matlab中关闭输入对话框？

1 个答案: