时间格式的字符串更改格式

时间格式的字符串更改格式

    NSDateFormatter *dateFormat=[[NSDateFormatter alloc]init];
    [dateFormat setDateFormat:@"yyyy-MM-dd HH:mm:ss"]; //这个格式字符串对应的格式，一定要对应，不然取不到date
    NSDate *date=[dateFormat dateFromString:self.model.birthday];
    NSDateFormatter *formater=[[NSDateFormatter alloc]init];
    [formater setDateFormat:@"yyyy-MM-dd"];
    NSString *currentDateStr = [formater stringFromDate:date];
    self.receiveData=currentDateStr;