BBD指标源码(同花顺BBD指标)

2023-07-13 13:59分类：ROC 阅读：

续······

（四）BBD 指标

计算过程

就在那时，我偶然发现了 Carsten Dominik 在 Google Talk 上关于 org 模式的讲话。Carsten 是 org 模式的作者，即便是这个讲话已经有 10 年了，但它仍然很具有参考价值。

从强势板块中如何选择股票?

/var：所有的可变数据，如新闻组文章、电子邮件、网站、数据库、软件包系统的缓存等等，将被放入这个目录。这个目录的大小取决于您计算机的用途，但是对大多数人来说，将主要用于软件包系统的管理工具。如果做服务器的话空间应尽量大。我的服务器的实际分法及实际使用的大小,还没有实际投入使用。所以/var目录没有用那么多。一般WEB存放网页的目录是/var/www,postfix邮件的存放邮件的目录是：/var/mail,var/log，是系统日志记录分区， /var/spool：存放一些邮件、新闻、打印队列等。

shell:PublicLibraries

例如，在经过长期的下跌之后，成交量出现极度萎缩，价格也处于低位。2009年1月6日起，该股的成交量逐渐增加，但是并没有出现巨量，后市出现了较大的上涨幅度

在 UUID= 后面填入分区相应的 UUID 值，就可以正确挂载分区了。

shell:CD Burning

shell:Desktop

shell:::{863aa9fd-42df-457b-8e4d-0de1b8015c60} //Remote Printers

首先是拿到访问的url，一般先使用chrome浏览器自带的F12中的网络部分进行测试。好巧不巧的，点击XHR后直接拿到数据了，那就不搞什么乱七八糟的别的了。

巴菲特曾多次提到，如果一项投资他在五分钟之内不能决定，那么给他五个月时间，依然无法做出决定。这个话的逻辑，很多人初一看，其实非常疑惑。为什么给你更多时间，你也不能做出决定呢?

许多 TODO 管理工具与电子邮件集成的很差。当你想做“提醒我在一周内回复这个邮件”之类的事时，很多时候是不可能的，因为这个工具不能以一种能够轻松回复的方式存储邮件。而这个问题在 Slack 上更为严重。

这种手法往往出现在基金等机构高度控盘的品种上,特别是在持续阴跌过程中,基金机构战略性撤退,每天缩量隐性抛售,让不少看多投资者屡接屡套深受其害。因此,对某只股票的股价从涨不动的高位下跌行为一定要多注意,尤其是一个时间周期的龙头股票如果连续三天未收复5日均线,稳妥的做法是,在尚未严重“损手断脚”的情况下,早退出来要紧。判断个股趋势的好坏,衡量个股行情的优劣,“看涨不涨,必须出;看跌不跌的,应该坚决吃进。” 如下图：

shell:ThisDeviceFolder

shell:::{1D2680C9-0E2A-469d-B787-065558BC7D43} //Fusion Cache

如果通过Bert进行预训练，相当于给矩阵加入了先验知识（之前训练逻辑没有给机器任何提示，规则后者基础知识），提高了正式训练时初始矩阵的准确度，极大地提升了之后transformer的计算效率和对数据量的要求。在现实中，举例来说，如果我想训练国家图书馆图书，之前需要每本书的信息和对这本书的解释，或者中文书对应的英文书。但现在我们可以大量只是训练内容，不需要打标签，之后只需要通过transformer对样本数据进行微调。这就给ChatGPT很大的进步空间，而且可以预见，更多这类大模型会雨后春笋一般快速出现。

写一篇文章不易，如果对你有启示，给个点赞吧。

那么 Windows 到底有多少这样的目录呢？！我用 aardio 写了一个小程序从注册表查找并列出这些目录，源代码在「 aardio 范例 > 文件操作 > 特殊路径 > 打开隐藏目录」可以找到：

/dev/sda6 /disk1 ext3 defaults 1 2

今日两市大幅高开，之后在券商板块集体大涨的推动下震荡走高，11时后小幅回落至中午收盘；午后股指小幅惯性走高，13:30时后逐步缓慢回落；盘面热点：基因概念、智能医疗、信息安全、券商、医疗保健、钢铁、煤炭、广告包装、工程机械、电脑设备、云计算等板块表现强势；总体来说：今日市场呈现为普涨的行情。

大势猜想：市场维持强势格

shell:::{38A98528-6CBF-4CA9-8DC0-B1E1D10F7B1B}

1.断点调试，源码分析

可以从源码了解到，不仅仅支持flv，ts，还有mp3，AAC等格式。SrsLiveEntry表示是一一对应关系，url与source的映射关系。对应源码如下：

srs_error_t SrsLiveStream::do_serve_http(ISrsHttpResponseWriter* w, ISrsHttpMessage* r) { srs_error_t err = srs_success; string enc_desc; ISrsBufferEncoder* enc = NULL; srs_assert(entry); if (srs_string_ends_with(entry->pattern, ".flv")) { w->header()->set_content_type("video/x-flv"); enc_desc = "FLV"; enc = new SrsFlvStreamEncoder(); } else if (srs_string_ends_with(entry->pattern, ".aac")) { w->header()->set_content_type("audio/x-aac"); enc_desc = "AAC"; enc = new SrsAacStreamEncoder(); } else if (srs_string_ends_with(entry->pattern, ".mp3")) { w->header()->set_content_type("audio/mpeg"); enc_desc = "MP3"; enc = new SrsMp3StreamEncoder(); } else if (srs_string_ends_with(entry->pattern, ".ts")) { w->header()->set_content_type("video/MP2T"); enc_desc = "TS"; enc = new SrsTsStreamEncoder(); } else { return srs_error_new(ERROR_HTTP_LIVE_STREAM_EXT, "invalid pattern=%s", entry->pattern.c_str()); } SrsAutoFree(ISrsBufferEncoder, enc); // Enter chunked mode, because we didn't set the content-length. w->write_header(SRS_CONSTS_HTTP_OK); // create consumer of souce, ignore gop cache, use the audio gop cache. SrsConsumer* consumer = NULL; if ((err = source->create_consumer(NULL, consumer, true, true, !enc->has_cache())) != srs_success) { return srs_error_wrap(err, "create consumer"); } SrsAutoFree(SrsConsumer, consumer); srs_verbose("http: consumer created success."); SrsPithyPrint* pprint = SrsPithyPrint::create_http_stream(); SrsAutoFree(SrsPithyPrint, pprint); SrsMessageArray msgs(SRS_PERF_MW_MSGS); // Use receive thread to accept the close event to avoid FD leak. // @see https://github.com/ossrs/srs/issues/636#issuecomment-298208427 SrsHttpMessage* hr = dynamic_cast<SrsHttpMessage*>(r); SrsResponseOnlyHttpConn* hc = dynamic_cast<SrsResponseOnlyHttpConn*>(hr->connection()); // update the statistic when source disconveried. SrsStatistic* stat = SrsStatistic::instance(); if ((err = stat->on_client(_srs_context->get_id(), req, hc, SrsRtmpConnPlay)) != srs_success) { return srs_error_wrap(err, "stat on client"); } // the memory writer. SrsBufferWriter writer(w); if ((err = enc->initialize(&writer, cache)) != srs_success) { return srs_error_wrap(err, "init encoder"); } // if gop cache enabled for encoder, dump to consumer. if (enc->has_cache()) { if ((err = enc->dump_cache(consumer, source->jitter())) != srs_success) { return srs_error_wrap(err, "encoder dump cache"); } } SrsFlvStreamEncoder* ffe = dynamic_cast<SrsFlvStreamEncoder*>(enc); // Set the socket options for transport. bool tcp_nodelay = _srs_config->get_tcp_nodelay(req->vhost); if (tcp_nodelay) { if ((err = hc->set_tcp_nodelay(tcp_nodelay)) != srs_success) { return srs_error_wrap(err, "set tcp nodelay"); } } srs_utime_t mw_sleep = _srs_config->get_mw_sleep(req->vhost); if ((err = hc->set_socket_buffer(mw_sleep)) != srs_success) { return srs_error_wrap(err, "set mw_sleep %" PRId64, mw_sleep); } SrsHttpRecvThread* trd = new SrsHttpRecvThread(hc); SrsAutoFree(SrsHttpRecvThread, trd); if ((err = trd->start()) != srs_success) { return srs_error_wrap(err, "start recv thread"); } srs_trace("FLV %s, encoder=%s, nodelay=%d, mw_sleep=%dms, cache=%d, msgs=%d", entry->pattern.c_str(), enc_desc.c_str(), tcp_nodelay, srsu2msi(mw_sleep), enc->has_cache(), msgs.max); // TODO: free and erase the disabled entry after all related connections is closed. // TODO: FXIME: Support timeout for player, quit infinite-loop. while (entry->enabled) { // Whether client closed the FD. if ((err = trd->pull()) != srs_success) { return srs_error_wrap(err, "recv thread"); } pprint->elapse(); // get messages from consumer. // each msg in msgs.msgs must be free, for the SrsMessageArray never free them. int count = 0; if ((err = consumer->dump_packets(&msgs, count)) != srs_success) { return srs_error_wrap(err, "consumer dump packets"); } if (count <= 0) { // Directly use sleep, donot use consumer wait, because we couldn't awake consumer. srs_usleep(mw_sleep); // ignore when nothing got. continue; } if (pprint->can_print()) { srs_trace("-> " SRS_CONSTS_LOG_HTTP_STREAM " http: got %d msgs, age=%d, min=%d, mw=%d", count, pprint->age(), SRS_PERF_MW_MIN_MSGS, srsu2msi(mw_sleep)); } // sendout all messages. if (ffe) { err = ffe->write_tags(msgs.msgs, count); } else { err = streaming_send_messages(enc, msgs.msgs, count); } // free the messages. for (int i = 0; i < count; i++) { SrsSharedPtrMessage* msg = msgs.msgs[i]; srs_freep(msg); } // check send error code. if (err != srs_success) { return srs_error_wrap(err, "send messages"); } } // Here, the entry is disabled by encoder un-publishing or reloading, // so we must return a io.EOF error to disconnect the client, or the client will never quit. return srs_error_new(ERROR_HTTP_STREAM_EOF, "Stream EOF"); }

1 0x00000000004fde19 in SrsBufferWriter::write (this=0x7ffff7eb5860, buf=0x7ffff7eb5470, count=9, pnwrite=0x0) at src/app/srs_app_http_stream.cpp:506 2 0x000000000040e9e1 in SrsFlvTransmuxer::write_header (this=0xa71b10, flv_header=0x7ffff7eb5470 "FLV\001\005") at src/kernel/srs_kernel_flv.cpp:411 3 0x000000000040e90d in SrsFlvTransmuxer::write_header (this=0xa71b10, has_video=true, has_audio=true) at src/kernel/srs_kernel_flv.cpp:399 4 0x00000000004fd11a in SrsFlvStreamEncoder::write_header (this=0xa68b10, has_video=true, has_audio=true) at src/app/srs_app_http_stream.cpp:355 5 0x00000000004fd04f in SrsFlvStreamEncoder::write_tags (this=0xa68b10, msgs=0xa6da30, count=10) at src/app/srs_app_http_stream.cpp:340 6 0x00000000004ff0dc in SrsLiveStream::do_serve_http (this=0xa3d9d0, w=0x7ffff7eb5bd0, r=0xa91c00) at src/app/srs_app_http_stream.cpp:677 7 0x00000000004fe108 in SrsLiveStream::serve_http (this=0xa3d9d0, w=0x7ffff7eb5bd0, r=0xa91c00) at src/app/srs_app_http_stream.cpp:544 8 0x000000000049c86f in SrsHttpServeMux::serve_http (this=0xa11fe0, w=0x7ffff7eb5bd0, r=0xa91c00) at src/protocol/srs_http_stack.cpp:711 9 0x0000000000562080 in SrsHttpServer::serve_http (this=0xa11e00, w=0x7ffff7eb5bd0, r=0xa91c00) at src/app/srs_app_http_conn.cpp:300 10 0x000000000049d6be in SrsHttpCorsMux::serve_http (this=0xa3aa60, w=0x7ffff7eb5bd0, r=0xa91c00) at src/protocol/srs_http_stack.cpp:859 11 0x0000000000561086 in SrsHttpConn::process_request (this=0xa626e0, w=0x7ffff7eb5bd0, r=0xa91c00) at src/app/srs_app_http_conn.cpp:161 12 0x0000000000560ce8 in SrsHttpConn::do_cycle (this=0xa626e0) at src/app/srs_app_http_conn.cpp:133 13 0x00000000004d10fb in SrsConnection::cycle (this=0xa626e0) at src/app/srs_app_conn.cpp:171 14 0x0000000000509c88 in SrsSTCoroutine::cycle (this=0xa62a70) at src/app/srs_app_st.cpp:198 15 0x0000000000509cfd in SrsSTCoroutine::pfn (arg=0xa62a70) at src/app/srs_app_st.cpp:213 16 0x00000000005bdd9d in _st_thread_main () at sched.c:337 17 0x00000000005be515 in st_thread_create (start=0x5bd719 <_st_vp_schedule+170>, arg=0x900000001, joinable=1,stk_size=1) at sched.c:616

3.关于vhost配置

0 SrsLiveEntry::SrsLiveEntry 1 0x0000000000500ffa in SrsHttpStreamServer::http_mount (this=0xa11dc0, s=0xa3bf80, r=0xa3ae90) at src/app/srs_app_http_stream.cpp:907 2 0x00000000005620f5 in SrsHttpServer::http_mount (this=0xa118f0, s=0xa3bf80, r=0xa3ae90) at src/app/srs_app_http_conn.cpp:308 3 0x00000000004cd3cc in SrsServer::on_publish (this=0xa103a0, s=0xa3bf80, r=0xa3ae90) at src/app/srs_app_server.cpp:1608 4 0x00000000004e6a9b in SrsSource::on_publish (this=0xa3bf80) at src/app/srs_app_source.cpp:2466 5 0x00000000004d89f2 in SrsRtmpConn::acquire_publish (this=0xa30ce0, source=0xa3bf80) at src/app/srs_app_rtmp_conn.cpp:940 6 0x00000000004d7a74 in SrsRtmpConn::publishing (this=0xa30ce0, source=0xa3bf80) at src/app/srs_app_rtmp_conn.cpp:822 7 0x00000000004d5229 in SrsRtmpConn::stream_service_cycle (this=0xa30ce0) at src/app/srs_app_rtmp_conn.cpp:534 8 0x00000000004d4141 in SrsRtmpConn::service_cycle (this=0xa30ce0) at src/app/srs_app_rtmp_conn.cpp:388 9 0x00000000004d2f09 in SrsRtmpConn::do_cycle (this=0xa30ce0) at src/app/srs_app_rtmp_conn.cpp:209 10 0x00000000004d10fb in SrsConnection::cycle (this=0xa30d58) at src/app/srs_app_conn.cpp:171 ---Type <return> to continue, or q <return> to quit--- 11 0x0000000000509c88 in SrsSTCoroutine::cycle (this=0xa30f70) at src/app/srs_app_st.cpp:198 12 0x0000000000509cfd in SrsSTCoroutine::pfn (arg=0xa30f70) at src/app/srs_app_st.cpp:213 13 0x00000000005bdd9d in _st_thread_main () at sched.c:337 14 0x00000000005be515 in st_thread_create (start=0x5bd719 <_st_vp_schedule+170>, arg=0x700000001, joinable=1, stk_size=1) at sched.c:616

0 SrsLiveStream::SrsLiveStream (this=0xa3da40, s=0xa3bbd0, r=0xa3ad40, c=0xa3d520) at src/app/srs_app_http_stream.cpp:514 1 0x00000000005010bb in SrsHttpStreamServer::http_mount (this=0xa11fd0, s=0xa3bbd0, r=0xa3ad40) at src/app/srs_app_http_stream.cpp:912 2 0x00000000005620f5 in SrsHttpServer::http_mount (this=0xa11e00, s=0xa3bbd0, r=0xa3ad40) at src/app/srs_app_http_conn.cpp:308 3 0x00000000004cd3cc in SrsServer::on_publish (this=0xa11ea0, s=0xa3bbd0, r=0xa3ad40) at src/app/srs_app_server.cpp:1608 4 0x00000000004e6a9b in SrsSource::on_publish (this=0xa3bbd0) at src/app/srs_app_source.cpp:2466 5 0x00000000004d89f2 in SrsRtmpConn::acquire_publish (this=0xa30d00, source=0xa3bbd0) at src/app/srs_app_rtmp_conn.cpp:940 6 0x00000000004d7a74 in SrsRtmpConn::publishing (this=0xa30d00, source=0xa3bbd0) at src/app/srs_app_rtmp_conn.cpp:822 7 0x00000000004d5229 in SrsRtmpConn::stream_service_cycle (this=0xa30d00) at src/app/srs_app_rtmp_conn.cpp:534 8 0x00000000004d4141 in SrsRtmpConn::service_cycle (this=0xa30d00) at src/app/srs_app_rtmp_conn.cpp:388 9 0x00000000004d2f09 in SrsRtmpConn::do_cycle (this=0xa30d00) at src/app/srs_app_rtmp_conn.cpp:209 10 0x00000000004d10fb in SrsConnection::cycle (this=0xa30d78) at src/app/srs_app_conn.cpp:171 11 0x0000000000509c88 in SrsSTCoroutine::cycle (this=0xa30f90) at src/app/srs_app_st.cpp:198 12 0x0000000000509cfd in SrsSTCoroutine::pfn (arg=0xa30f90) at src/app/srs_app_st.cpp:213 13 0x00000000005bdd9d in _st_thread_main () at sched.c:337 14 0x00000000005be515 in st_thread_create (start=0x5bd719 <_st_vp_schedule+170>, arg=0x700000001, joinable=1, stk_size=1) at sched.c:616