9. The method as claimed in claim 1 , further comprising: searching for product information in product information database using a search keyword carried in the search query request; returning the product information based on the searching; determining a click rate of a piece of the returned product information during a given period of time; and determining the product information corresponding to the graphic code based on the click rate of the piece of the returned product information.
9. The method as claimed in claim 1 , further comprising: searching for product information in product information database using a search keyword carried in the search query request; returning the product information based on the searching; determining a click rate of a piece of the returned product information during a given period of time; and determining the product information corresponding to the graphic code based on the click rate of the piece of the returned product information. 10. The method as claimed in claim 9 , wherein the determining the product information corresponding to the graphic code based on the click rate of the piece of returned product information comprises: identifying, from the returned product information, pieces of product information having a click rate higher than a predetermined value; determining that product attribute of identified pieces of product information has a consistent attribute value; and assigning the attribute value as an attribute value of the product information corresponding to the graphic code.