Step 1: Use a pencil to draw the outer outline of the can.

Step 2: Follow the pencil drawing and use plain blue to draw a single-color drawing of the can.

Step 3: Adjust the color to draw the general tone of the can.

Step 4: Further color, use a pen along the shape of the can to shape the shape, and draw the can's trademark.

Step 5: Draw highlights, then adjust and improve the picture to draw a complete can.