Rendering:
1. Create a 400*400 image under PS and set the background to white.
2. Create a new layer, use the Ellipse Selection Tool, hold down SHIFT and pull out a perfect circle, and fill it with white.
3. Load the graphic style for the "circle" layer. Realizing the effect of the button depends entirely on this step. There are endless treasures in layer styles, please explore more! Here I used 4 layer style effects.
4. To achieve this step, add the button. Create a new layer, select the "Custom Shape Tool" and select the triangle you need.
