About page layout, the left side is need to place the v - for generating components (backend access to obj type of data) on the right is the component of the name
Requirements: left 3 * 4 grid can be achieved with split on the right side of the component can be drag and drop to the left side of the
On the right side of the v - for generating dom can freely drag and the original dom't dragged away can be generated through the button to continue to add