//微信登录
CCOpenService *wxService = [CCOpenService getOpenServiceWithName:CCOpenServiceNameWeiXin];
[wxService requestOpenAccount:^(CCOpenRespondEntity *respond) {
    if (respond == nil) {
        UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"温馨提示" message:@"^_^亲,您木有安装微信哟~ " delegate:nil cancelButtonTitle:@"知道啦" otherButtonTitles:nil];
        [alert show];
        return;
    }
    NSLog(@"Respond data is %@",respond.data);
}];

// 如果需求里对第三方登录功能有着更为严格的安全要求时,可以只获取到access_token(微信为code),此接口只需要平台的申请到的帐号id(或者key)而不需要密钥(或者secret)即可实现,获取到authcode之后发给服务端,由服务端处理获取用户个人openid和其他信息部分的业务逻辑即可~
CCOpenService *wxService = [CCOpenService getOpenServiceWithName:CCOpenServiceNameWeiXin];
[wxService requestOpenAuthCode:^(CCOpenRespondEntity *respond) {
    if (respond == nil) {
        UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"温馨提示" message:@"^_^亲,您木有安装微信哟~ " delegate:nil cancelButtonTitle:@"知道啦" otherButtonTitles:nil];
        [alert show];
        return;
    }
    NSLog(@"Respond data is %@",respond.data);
}];

CCOpenWXPayRequestEntity *wxEntity = [[CCOpenWXPayRequestEntity alloc] init];
wxEntity.wxAppID   = <#appid#>;
wxEntity.partnerID = <#partnerid#>;
wxEntity.prepayID  = <#prepayid#>;
wxEntity.nonceStr  = <#noncestr#>;
wxEntity.timestamp = <#timestamp#>;
wxEntity.package   = @"Sign=WXPay";
wxEntity.sign      = <#sign#>;

CCOpenService *wxService = [CCOpenService getOpenServiceWithName:CCOpenServiceNameWeiXin];
[wxService requestPay:wxEntity respondHander:^(CCOpenRespondEntity *respond) {
    NSString *payResult = respond.data[@"result"];
    if ([payResult isEqualToString:@"WXSuccess"]) {
            // Query the result of payment from service..
            //Do something
    }else if([payResult isEqualToString:@"WXErrCodeUserCancel"]) {
        //User cancel
    }else {
        //Error~
    }
    NSLog(@"%@",respond.data);
}];