2. Go to the homepage of JD.COM App and search for the product you want to query in the search box. Take the query printer as an example.

3. Search shows that every product in JD.COM has an evaluation number, and the evaluation number in JD.COM is the sales volume of the product.

4. There is no such thing as buying something and not evaluating it. Even if JD.COM doesn't deliberately evaluate, an evaluation will be automatically generated and displayed in the product evaluation, so the evaluation number of JD.COM is the sales volume of the product.

5. You can also click on the product page you want to view, and drop it down to see the quantity of product evaluation and even the quantity of product sales more intuitively.