秒转日期

- (NSString *)getShowDateWithTime:(NSString *)time{

    NSDate *timeDate = [[NSDatealloc]initWithTimeIntervalSince1970:[timelongLongValue]];

    NSDateFormatter *dateFormatter = [[NSDateFormatteralloc] init];

    dateFormatter.dateFormat =@"yyyy/MM/dd HH:mm";

    NSString *timeStr = [dateFormatterstringFromDate:timeDate];

    return timeStr;

}