第5月第8天 jsonmodel

1.

@implementation JSONValueTransformer (CustomTransformer)

//时间戳转NSDate
- (NSDate *)NSDateFromNSString:(NSString*)string {
    NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
    [formatter setDateFormat:APIDateFormat];
    return [formatter dateFromString:string];
}

//NSDate转时间戳
- (NSString *)JSONObjectFromNSDate:(NSDate *)date {
    NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
    [formatter setDateFormat:APIDateFormat];
    return [formatter stringFromDate:date];
}

@end

2.node爬虫