///获取日期
///参数year 1为1年以后的日期 -1为年之前的日期 0为今年
///参数month 1为1个月以后的日期 -1为一个月之前的日期 0为本月
///参数day 1为1天以后的日期 -1为一天之前的日期 0为今天
///返回日期的字符串
+(NSString*)getDate:(NSInteger)year month:(NSInteger)month day:(NSInteger)day
{
NSCalendar *calendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];
NSDateComponents *comps = nil;
comps = [calendar components:NSYearCalendarUnit|NSMonthCalendarUnit|NSDayCalendarUnit fromDate:[NSDate date]];
NSDateComponents *adcomps = [[NSDateComponents alloc] init];
[adcomps setYear:year];
[adcomps setMonth:month];
[adcomps setDay:day];
NSDate *newdate = [calendar dateByAddingComponents:adcomps toDate:[NSDate date] options:0];
NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
[formatter setDateFormat:@"yyyy-MM-dd"];
NSTimeZone* timeZone = [NSTimeZone timeZoneWithName:@"Asia/beijing"];
[formatter setTimeZone:timeZone];
NSString *dateFromData = [formatter stringFromDate:newdate];
// NSLog(@"dateFromData===%@",dateFromData);
return dateFromData;
}
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