上个月的时候，学习了一下内部市场要价(Ask)与出价(Bid)的区别
之后除了偶尔需要换STEEM或者换SBD的时候进一下内部市场，就很少登陆了。
内部市场交易类型都显示为买入
今天尝试了一下在内部市场挂单，竟然发现无论是买入STEEM还是卖出STEEM，挂单成功后显示的交易类型都是Buy, 吓我一身冷汗，我还以为我挂反了呢！如果持续高价买入，低价卖出，估计乐子就大了。那样不叫交易，叫送温暖。
(内部市场当前部分Orders)
(内部市场我的两笔挂单)
通过上边两图可以看出，若我的第二笔挂的是买单，早就应该成交的。
从代码上看程序对买入卖出没有区别
看了一下钱包代码，可以看出程序上是不区分啥买入卖出的
annotated_signed_transaction wallet_api::create_order( string owner, uint32_t order_id, asset amount_to_sell, asset min_to_receive, bool fill_or_kill, uint32_t expiration_sec, bool broadcast )
{
FC_ASSERT( !is_locked() );
limit_order_create_operation op;
op.owner = owner;
op.orderid = order_id;
op.amount_to_sell = amount_to_sell;
op.min_to_receive = min_to_receive;
op.fill_or_kill = fill_or_kill;
op.expiration = expiration_sec ? (fc::time_point::now() + fc::seconds(expiration_sec)) : fc::time_point::maximum();
signed_transaction tx;
tx.operations.push_back( op );
tx.validate();
return my->sign_transaction( tx, broadcast );
}
也就是说，实际上有几种情况：
- 买入STEEM, 付出SBD
- 卖出STEEM, 换取SBD
- 买入SBD, 付出STEEM
- 卖出SBD, 换取STEEM
其中1和4，2和3本质上是相同的，只是不同的视角
无论哪种情况，都是填充以下结构体并广播出去
struct limit_order_create_operation : public base_operation
(代码大家去github自己搜索，不贴出来凑数了。)
然后在这里被处理：
void limit_order_create_evaluator::do_apply( const limit_order_create_operation& o )
(代码大家去github自己搜索，不贴出来凑数了。)
可以通过指定标准来区别何为买入何为卖出
我测试时挂的卖出STEEM订单
我测试时挂的买入STEEM订单
尽管填充的是相同的结构体，但是买和卖的资产类型是对调的。
所以原则上，内部市场可以定出一个参考标准：
- min_to_receive处，资产类型是STEEM的定义成买单。
- min_to_receive处，资产类型是SBD的定义成卖单。
如此一来，在Open Orders显示成这样， 多直观啊
另外，顺便说一下，STEEM内部市场交易0手续费哦
你们各种交易牛，不来研究一下吗？
我有提过那错误显示 sell 为 buy . 这情况有好几星期了。
😄哦，这么说以前正确过呀，我还真没注意这事
以为一直都这样呢
是最近一两星期才砸了。
I really like your post, I will wait for the next posting
Very useful and quality ,can add my insight in everyday life,and hopefully the next post will be better again ,wish you all the best 👍
0手續費，要多去玩玩了，
可惜沒錢。土豪哭穷
土豪，在哪？我去抱大腿。
You also need to translate in English so other user can see.😉
i'm really like this post ,and i hope you can be make a post like this anymore
虽然看不懂O哥写的什么，但是隐约感觉很厉害的样子，难道这就是传说中的不明觉厉？
😢
我是相当搞不懂为什么这些exchange总是说ask/bid，不说sell/buy，每次都要脑子里转下弯
我也是搞了好久才略微明白一点
这有点太专业了
这一点也不专业啊 😄
O哥 你这贴一发，内部市场又得开始挤兑了 哈哈
😄
i wanna sign up there,, that blue button link you've sent ,but i can't ,, why?
You mentioned that the error appears selling to buy. This situation has been for several weeks.
upvoted & followed you. kindly spread my post as much you can
or resteem it. because i really need support. https://steemit.com/story/@kumar.malhotra/dear-all-stemians-help-me-i-really-need-it-seriously
upvoted & followed you. kindly spread my post as much you can
or resteem it. because i really need support. https://steemit.com/story/@kumar.malhotra/dear-all-stemians-help-me-i-really-need-it-seriously
零手續費,速度又快才吸引人啊!!!
只可惜我剛剛大概念了那四種情況不下10次,好像在繞口令一般~ 冏
真棒!!! ，好帖子好友，保持@oflyhigh
如果您喜欢加密的货币，请访问我的帖子，请帮助您升级并重新安排。
https://steemit.com/cryptocurrency/@wahyue/review-of-the-scam-webdengi
0手续费相對其他平台吸引
I think a good pos, but i think, you pos forward in leanguage english
内部市场？在哪？咱也筹热闹去，谢谢
No way! I really like your post! You should write more posts like that so I will spend more time as being new I have still so much to learn from whom has more experience than me! Thanks a lot :)
Цены поднимаются все выше
Amazing friend!You are amazing.I do not mean it but looks great articulation and presentation is also to be appreciative. Your this work will be highly appreciative in the prospct of steemit world and will also deserves exceptional metion.
content that is very useful, to increase knowledge, thank you for sharing knowledge
市场看起来还不错，就是感觉交易量比较少，挂单很久交易不了。。
有一个秘诀加速成交
就是高价买，低价卖：）
这个秘诀一般人可不能告诉他
This is not my first time commenting on the language that i cannot understand at all. I am a person who has
High curiosity and it makes me wants to know more even though am looked crazy. Lol. But this is me ....a high curiosity guy
高手请问你会写程式自动进行交易吗？
有哪些平台有开放API给程式连过去？
Bookmarked
这所谓的内部市场是指哪里呢，能贴上链接？谢谢
剛看第一眼看錯了以為你說很少登陸steemit了 😱
我很少用內部市場交易，sell誤顯示為buy也太搞笑了吧呵呵
https://steemit.com/art/@channeljoy/stunning-example-of-fractal-art
不明觉厉
Congratulations @oflyhigh!
Your post was mentioned in the hit parade in the following category:
same other channal
from https://steemit.com/@cheetah
https://busy.org/@cheetah
Okay, I have banned your channal in 5 dyas
Warning! This user is on my black list, likely as a known plagiarist, spammer or ID thief. Please be cautious with this post!
To get off this list, please chat with us in the #steemitabuse-appeals channel in steemit.chat.
Get fucked !cheetah ban
Okay, I have banned @cheeth.