+(NSInteger)timeSwitchTimestamp:(NSString *)formatTime andFormatter:(NSString *)format{
    
    format = @"yyyy-MM-dd HH:mm:ss";

//    formatTime = @"2023-05-04 18:40:22";
    

    NSDateFormatter *dateformatter = [[NSDateFormatter alloc]init];
    
    //设置本地区就可以得到24小时制时间，不论手机是12不时制还是24小时制
       NSLocale *zh_CNLocale = [[NSLocale alloc] initWithLocaleIdentifier:@"en_US_POSIX"];
    
    dateformatter.locale = zh_CNLocale;

    [dateformatter setDateFormat: format];

    NSDate *date = [dateformatter dateFromString:formatTime];

    long timeStamp = [date timeIntervalSince1970];

    return timeStamp;
    
    
    
    
    


}