1. Obtenga el año, mes y día
NSDateFormatter *formater = [[ NSDateFormatter alloc] init];
[formater setDateFormat:@"yyyy-MM-dd"];// 时间格式
NSDate *currentDate = [NSDate date];//获取当前日期
NSString *currentDateStr = [formater stringFromDate:currentDate];
2. Obtenga año, mes, día, hora, minuto y segundo
Simplemente cambie el formato de hora [formater setDateFormat: @ "yyyy-MM-dd HH: mm: ss"];
NSDateFormatter *formater = [[ NSDateFormatter alloc] init];
[formater setDateFormat:@"yyyy-MM-dd HH:mm:ss"];// 时间格式
NSDate *currentDate = [NSDate date];//获取当前日期
NSString *currentDateStr = [formater stringFromDate:currentDate];