<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[ldahual的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/ldahual</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; ldahual]]></copyright><item><title><![CDATA[C# wpf 工程中如何配置GRPC的调试log]]></title><link>https://blog.youkuaiyun.com/ldahual/article/details/137924433</link><guid>https://blog.youkuaiyun.com/ldahual/article/details/137924433</guid><author>ldahual</author><pubDate>Thu, 18 Apr 2024 15:57:07 +0800</pubDate><description><![CDATA[首先，保证wpf功能安装了grpc相关的package并且grpc接口能正常使用。这里的"GRPC_TRACE"可以配置不同的值“api”、“all”等等，参见。运行程序，就可以在console中看的GRPC相关的调试log了。工程右键属性-》应用程序选项卡-》输出类型选“控制台应用程序”]]></description><category></category></item><item><title><![CDATA[No module named “Crypto” 的大坑]]></title><link>https://blog.youkuaiyun.com/ldahual/article/details/130596471</link><guid>https://blog.youkuaiyun.com/ldahual/article/details/130596471</guid><author>ldahual</author><pubDate>Wed, 10 May 2023 11:07:31 +0800</pubDate><description><![CDATA[至于这个 pycryptdome 是干嘛用的呢？我在 pypi.org 没有找到它。在本地site-packages 目录里也没有安装实际内容。可能是因为pip改了清华源，在清华源仓库里有这么个空package。明明安装了 pycryptodome，为什么还报错 No module named “Crypto” 呢？可能你装的是 pycryptdome，不是 pycrypt。]]></description><category></category></item><item><title><![CDATA[windows平台下的python的multiprocessing、ProcessPoolExecutor操作需要在if __name__ == ‘__main__‘代码块中进行]]></title><link>https://blog.youkuaiyun.com/ldahual/article/details/129322248</link><guid>https://blog.youkuaiyun.com/ldahual/article/details/129322248</guid><author>ldahual</author><pubDate>Fri, 03 Mar 2023 16:14:19 +0800</pubDate><description><![CDATA[python 多进程相关操作在Linux平台可以正常运行，但在windows平台上不能按预想的方式运行]]></description><category></category></item><item><title><![CDATA[python中int、bytes、bytearray之间的转换]]></title><link>https://blog.youkuaiyun.com/ldahual/article/details/129126211</link><guid>https://blog.youkuaiyun.com/ldahual/article/details/129126211</guid><author>ldahual</author><pubDate>Mon, 20 Feb 2023 16:10:10 +0800</pubDate><description><![CDATA[【代码】python中int、bytes、bytearray之间的转换。]]></description><category></category></item><item><title><![CDATA[Python eventlet模块处理超时，捕获超时异常]]></title><link>https://blog.youkuaiyun.com/ldahual/article/details/128818622</link><guid>https://blog.youkuaiyun.com/ldahual/article/details/128818622</guid><author>ldahual</author><pubDate>Tue, 31 Jan 2023 15:51:43 +0800</pubDate><description><![CDATA[eventlet 处理超时]]></description><category></category></item><item><title><![CDATA[python中十六进制字符串（hex string）转byte方法]]></title><link>https://blog.youkuaiyun.com/ldahual/article/details/128640880</link><guid>https://blog.youkuaiyun.com/ldahual/article/details/128640880</guid><author>ldahual</author><pubDate>Wed, 11 Jan 2023 10:45:22 +0800</pubDate><description><![CDATA[python中 16进制字符串（hex string） 转 byte]]></description><category></category></item><item><title><![CDATA[python ThreadPoolExecutor 异常捕获]]></title><link>https://blog.youkuaiyun.com/ldahual/article/details/128134915</link><guid>https://blog.youkuaiyun.com/ldahual/article/details/128134915</guid><author>ldahual</author><pubDate>Thu, 01 Dec 2022 17:06:08 +0800</pubDate><description><![CDATA[python ThreadPoolExecutor 异常捕获]]></description><category></category></item><item><title><![CDATA[pyinstaller打包的exe出现ImportError: DLL load failed while importing _fblas: 找不到指定的模块]]></title><link>https://blog.youkuaiyun.com/ldahual/article/details/127552226</link><guid>https://blog.youkuaiyun.com/ldahual/article/details/127552226</guid><author>ldahual</author><pubDate>Thu, 27 Oct 2022 14:58:58 +0800</pubDate><description><![CDATA[ImportError: DLL load failed while importing _fblas: 找不到指定的模块]]></description><category></category></item><item><title><![CDATA[如何指定Cython打包输出so文件的目录]]></title><link>https://blog.youkuaiyun.com/ldahual/article/details/127362178</link><guid>https://blog.youkuaiyun.com/ldahual/article/details/127362178</guid><author>ldahual</author><pubDate>Mon, 17 Oct 2022 13:57:23 +0800</pubDate><description><![CDATA[指定Cython打包输出目录]]></description><category></category></item><item><title><![CDATA[sqlalchemy中如何映射mysql中的bit(1)类型]]></title><link>https://blog.youkuaiyun.com/ldahual/article/details/127357044</link><guid>https://blog.youkuaiyun.com/ldahual/article/details/127357044</guid><author>ldahual</author><pubDate>Mon, 17 Oct 2022 09:18:09 +0800</pubDate><description><![CDATA[mysql中的bit(1)类型字段不能映射为Boolean]]></description><category></category></item><item><title><![CDATA[python中用zlib解压报错zlib.error: Error -3 while decompressing: incorrect header check的原因和解决方法]]></title><link>https://blog.youkuaiyun.com/ldahual/article/details/120132376</link><guid>https://blog.youkuaiyun.com/ldahual/article/details/120132376</guid><author>ldahual</author><pubDate>Mon, 06 Sep 2021 13:57:37 +0800</pubDate><description><![CDATA[形如下面的一段代码：
b64_encoded_bytes = base64.b64encode(zlib.compress(b'abcde'))
encoded_bytes_representation = str(b64_encoded_bytes)  # this the cause
zlib.decompress(base64.b64decode(encoded_bytes_representation))

zlib.decopress时报错
zlib.error: Error -3 while d]]></description><category></category></item><item><title><![CDATA[C++ string 中文乱码问题]]></title><link>https://blog.youkuaiyun.com/ldahual/article/details/119846031</link><guid>https://blog.youkuaiyun.com/ldahual/article/details/119846031</guid><author>ldahual</author><pubDate>Sat, 21 Aug 2021 22:25:32 +0800</pubDate><description><![CDATA[utf-8转为gbk
#include &lt;Windows.h&gt;
#include &lt;string&gt;
using namespace std;

string UtfToGbk(string strValue)
{
　　int len = MultiByteToWideChar(CP_UTF8, 0, strValue.c_str(), -1, NULL, 0);
　　wchar_t* wstr = new wchar_t[len+1];
　　memset(wstr, 0, len+1]]></description><category></category></item><item><title><![CDATA[Qt中通过shape()自定义QGraphicsItem的选择框]]></title><link>https://blog.youkuaiyun.com/ldahual/article/details/118552675</link><guid>https://blog.youkuaiyun.com/ldahual/article/details/118552675</guid><author>ldahual</author><pubDate>Wed, 07 Jul 2021 17:17:26 +0800</pubDate><description><![CDATA[主要针对QGraphicsPath等线形Item的选择框自定义
链接: https://stackoverflow.com/questions/42215622/qt-selection-of-qgraphics-shaped-item.

]]></description><category></category></item><item><title><![CDATA[protobuf的GZIP压缩]]></title><link>https://blog.youkuaiyun.com/ldahual/article/details/115397784</link><guid>https://blog.youkuaiyun.com/ldahual/article/details/115397784</guid><author>ldahual</author><pubDate>Fri, 02 Apr 2021 14:53:15 +0800</pubDate><description><![CDATA[protobuf的GZIP压缩
protobuf自带压缩功能，可选的压缩算法有 GZIP 和 ZLIB
序列化至iostream
序列化示例：
std::ofstream output("scene.art", std::ofstream::out | std::ofstream::trunc | std::ofstream::binary);
OstreamOutputStream outputFileStream(&amp;output);
GzipOutputStream::Options optio]]></description><category></category></item><item><title><![CDATA[如何在QGraphicsView的边框上制作标尺]]></title><link>https://blog.youkuaiyun.com/ldahual/article/details/114831422</link><guid>https://blog.youkuaiyun.com/ldahual/article/details/114831422</guid><author>ldahual</author><pubDate>Mon, 15 Mar 2021 14:16:15 +0800</pubDate><description><![CDATA[转自链接: https://stackoverflow.com/questions/56588152/how-to-make-a-ruler-on-the-border-of-a-qgraphicsview

]]></description><category></category></item><item><title><![CDATA[Windows10 + Visual Studio 2015 C++ 配置gRPC开发环境和helloworld运行的注意事项]]></title><link>https://blog.youkuaiyun.com/ldahual/article/details/112896606</link><guid>https://blog.youkuaiyun.com/ldahual/article/details/112896606</guid><author>ldahual</author><pubDate>Wed, 20 Jan 2021 17:38:00 +0800</pubDate><description><![CDATA[文章目录前言一、从github获取gRPC工程二、用VS编译gRPC2.1.注意配置（Debug/Release）和平台(x64/x86)选项2.2.注意运行库的配置（/MT、/MD等）三、使用gRPC静态库3.1.配置项与编译gRPC静态库时一致3.2.附加依赖项结束

前言
本文只记录一些注意事项，gRPC详细编译过程可参见以下文章
https://blog.youkuaiyun.com/weixin_28927079/article/details/97262243
https://blog.youkuaiyun.com..]]></description><category></category></item><item><title><![CDATA[cv2.VideoCapture不能捕获rtsp视频流的问题]]></title><link>https://blog.youkuaiyun.com/ldahual/article/details/100704035</link><guid>https://blog.youkuaiyun.com/ldahual/article/details/100704035</guid><author>ldahual</author><pubDate>Tue, 10 Sep 2019 16:51:32 +0800</pubDate><description><![CDATA[转自以下链接，详见以下链接：
https://stackoverflow.com/questions/49668941/nonmatching-transport-in-server-reply-when-cv2-videocapture-rtsp-onvif-camera
OpenCV 3.4默认使用TCP进行RTP传输，而你的设备似乎不支持该功能（如FFmpeg所示）。OpenCV stie实...]]></description><category></category></item><item><title><![CDATA[PyQt中QMainWindow设置QSS无效的问题]]></title><link>https://blog.youkuaiyun.com/ldahual/article/details/98754058</link><guid>https://blog.youkuaiyun.com/ldahual/article/details/98754058</guid><author>ldahual</author><pubDate>Wed, 07 Aug 2019 15:58:07 +0800</pubDate><description><![CDATA[实际使用测试效果来看，直接调用QMainWindow的setStyleSheet设置QSS是无效的。需要在QMainWindow下创建一个空QWidget调用setStyleSheet设置QSS。

例如（参见上图），QtDesigner创建的QMainWindow自带一个centralwidget，可以在centralwidget设置QSS，再使用

setWindowFlag(QtCore.Q...]]></description><category></category></item><item><title><![CDATA[style2paints V3 本地服务部署]]></title><link>https://blog.youkuaiyun.com/ldahual/article/details/90297776</link><guid>https://blog.youkuaiyun.com/ldahual/article/details/90297776</guid><author>ldahual</author><pubDate>Fri, 17 May 2019 17:49:20 +0800</pubDate><description><![CDATA[style2paints V3 本地服务部署style2paints 是啥style2paints V3 本地服务部署
style2paints 是啥
style2paints是一个开源的给线稿上色的项目。
目前项目组租不起服务器，所以V4 线上版本失效，V3版可以在本地部署。希望大家去GitHub上募捐。
style2paints V3 本地服务部署

安装Anaconda  安装完了最好修改下...]]></description><category></category></item></channel></rss>