程序功能：创建一个带有文本区及“对话框”按钮的父窗口，单击“对话框”按钮可打开一 个自定义对话框，从中可以定义行和列的数值，关闭对话框其设置的设置会显示在父窗口的文本区中。-Program features: with text area and create a "dialog" button on the parent window, click the "dialog" button to open a custom dialog box, we can define rows and columns of values, to close the dialog Settings will display its configuration in the text area of the parent window.