-(NSString *)returnIntegralStringData:(NSArray *)activityArr{
        //開(kāi)始時(shí)間
        NSTimeInterval time1= [activityArr[index][@"apr_stime"] doubleValue];
        NSDate *startDate=[NSDate dateWithTimeIntervalSince1970:time1];
       //結(jié)束時(shí)間
        NSTimeInterval time2= [activityArr[index][@"apr_etime"] doubleValue];
        NSDate *endDate=[NSDate dateWithTimeIntervalSince1970:time2];
        
        //比較時(shí)間
        if ([startDate timeIntervalSinceNow]>0.0f) {
            return @"即將開(kāi)搶";
        }else if ([endDate timeIntervalSinceNow]>0.0f){
            return @"搶購(gòu)中";
        }else{
            return @"已過(guò)搶購(gòu)時(shí)間";
        }
    
    return nil;
}