/// <summary> /// 删除指定位置的文字,从(0,0)开始 /// </summary> /// <param name="startLine"></param> /// <param name="startCol"></param> /// <param name="endLine"></param> /// <param name="endCol"></param> public void DeleteText(int startLine, int startCol, int endLine, int endCol) { EditPoint editPoint = GetEditPoint(startLine, startCol); if (editPoint != null) { object tp; TextLines.CreateTextPoint(endLine, endCol, out tp); editPoint.Delete(tp as TextPoint); } }