例如，可以设置视图，先将一个列层叠显示，然后当视图变窄时，将第二个列隐藏，如果进一步变窄，则继续层叠第三个列，依此类推。

For example, you can set the view up so that one column wraps first, and then as the view Narrows, a second column hides, and when it Narrows further, a third column wraps, and so on.

youdao

在Products视图操作中，您可以查看用户是否有更新或删除产品的权限，并设置用于显示或隐藏视图中按钮的变量。

In the Products view action, you could check to see if the user has permission to update or delete the product and set variables that can be used to display or hide the buttons in the view.

youdao

所谓放映只不过是隐藏当前的图片和标题，将图片来源和标题文本设置为新幻灯片的内容并显示。

The slide show simply hides the current image and title, sets the source of the image and the text of the title to the new slide contents, and then shows them.

youdao