2018-11-15

数据库里面的对象：

image.png

..........

手动copy 后的

image.png

@implementation Goods_BoughtModel
- (BOOL)isInvalid{
    NSInteger temp1 = _status;
    DDLogDebug(@"temp1 =%ld",temp1);
    NSInteger temp2 = self.status;
    DDLogDebug(@"temp2 =%ld",temp2);
    if (self.status == 0) {
        return YES;
    }
    return NO;
}

***输出**
temp1 = 0, 其实_status =nil
temp2 = 3