In the Doudian showcase, the method to set different colors of clothing is as follows:

1. On the product editing page, find the "Color" option, click the "Add Color" button, and select the required color. If you need to set multiple colors, repeat the above steps.

2. If multiple colors have been set, you need to select the product whose color needs to be modified on the product list page, click the "Edit" button, and enter the editing page to set the color.

3. On the editing page, find the "Color" option and check the color you want to display. In short, you need to add colors on the product editing page and check the colors you want to display on the product list page.