private void bindingNavigatorAddNewItem_Click(object sender, EventArgs e)
 {
     using (日常损耗Form form = new 日常损耗Form())
     {
         form.ShowDialog(this);
     }
 }
        private void EditItem()
        {
            ObjectView <日常损耗> view = 日常损耗BindingSource.Current as ObjectView <日常损耗>;

            if (view != null && view.Object != null)
            {
                using (日常损耗Form form = new 日常损耗Form(view.Object))
                {
                    form.ShowDialog(this);
                }
            }
        }