秒转日期

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

    NSDate *timeDate = [[NSDate alloc]initWithTimeIntervalSince1970:[time longLongValue]];

    NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];

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

    NSString *timeStr = [dateFormatter stringFromDate:timeDate];

    return timeStr;

}