Information processing method, client and server

The invention discloses an information processing method which is applied to a server. The method comprises the following steps: public information is transmitted to a first client, wherein the public information is information transmitted by a public number requiring server to the first client and the public information carries a first information set and a second information set; the second information set comprises N pieces of second information and N is a positive integer; the first information is information which only can be received by the first client, and the second information is information which only can be received by a client with a sharing relation with the first client; a second information receiving request from a second client is received, and whether a sharing relation exists between the second client and the first client or not is identified; after the condition that the sharing relation exists between the second client and the first client is determined, the second client is allowed to receive the second information. The invention further discloses the server and the client.