Please refer to the following:

1. Open the link of the internal test page, with the sample code in the upper left corner and the demonstration effect in the lower right corner, as shown in the figure below.

2. Click "this page", as shown in the figure below.

3. The effect is that in a normal webpage, the webpage will be directly replaced. The page is shown below.

4. If you click "New Page", a new tab will open, because in a.

Goal = "equality"

This property is shown below.