btnCall.Tag = txtNotes; 当您返回表格时，请检查对于您已设置的标签属性&重新关注该控件。When you are back to the form,check for tag property which you have set & bring back the focus on that control. 这篇关于如何获得目前专注的控制？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！