Screen, choose a good color, copy and paste, hide the first layer on the right, and right-click the desktop subtitle point.
Click Switch to Path, and then right-click Animation to set the status parameter to the required number of animation frames in the pop-up interface.
Set it to 7, set the movement parameter to 0, and confirm that the right layer is hidden, and the first layer is hidden.
Open a layer and select the rectangle tool to draw a rectangle with a width less than and a height of length on the desktop. The color is white.
Add a blurred mirror to feather around it, and then click the zoom tool to adjust it to your desired width and height.
Adjust the inclination again, place it on the left side of the text, and then copy the rectangle with the text.
Click the next frame on the play button, paste it in, and move the rectangle to the right of the subtitle, which has a lot of text.
Fold, right-click to cut the rectangle, right-click to paste the selected text into it, press play to return to the first frame, and play the time.
Copy and paste shapes and text into the third frame. Just move the rectangle to the right as above, for example
And so on, until the rectangle in the seventh frame almost exceeds the text range. Go back to the first frame and delete the rectangle.
This animation has been completed. Select GIF animation in the file preview to export.