L-Super

Qt 镜像资源问题

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### 先决条件 (Prerequisites) - [X] 我已确认这个问题没有在[其他 issues](https://github.com/tuna/issues/issues)中提出过。 I am sure that this problem has NEVER been discussed in [other issues](https://github.com/tuna/issues/issues). ### 发生了什么（What happened） 当我在镜像站试图下载Qt的安装包镜像文件时，发现版本并不全，而且并无可用安装包资源可供下载。路径为`https://mirrors.tuna.tsinghua.edu.cn/qt/archive/qt/` 相对于官网或其他镜像站，缺少很多资源。 ### 期望的现象（What you expected to...

类似于 https://time.geekbang.org/opencourse/intro/100057601 目前好像不支持公开课，希望能增加支持

可以判断原文件是UTF-8时，就跳过它吗？

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源文件是utf 然后转换后，中文就乱码了。应该是没做判断？

Update bubble_sort.md

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C++使用`std::swap()`交换数组，同时添加C语言代码，作为原始C++代码的补充 If this PR is related to coding or code translation, please fill out the checklist. - [x] I've tested the code and ensured the outputs are the same as...

add c merge sort content

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If this PR is related to coding or code translation, please fill out the checklist. - [x] I've tested the code and ensured the outputs are the same as the...

修复一些不通顺的语句，错误翻译

Program received signal SIGBUS, Bus error.

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I compiled it from source code and it executed successfully. However, when I remove the Qt environment variable, the program fails to start. GDB result: ```sh $ gdb ./changxie GNU...

fix waline placeholder parameter

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1. fix placeholder location 2. update url reference: https://waline.js.org/en/cookbook/customize/locale.html

undefined reference to `DwmExtendFrameIntoClientArea'

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当我在QtCreator尝试编译Windows example时，先提示`GdiPlusColor.h`无法找到（原因：改为`#include `），然后就遇到了这个错误 ```` D:\GithubRepo\Qt-Nice-Frameless-Window\framelesswindow\framelesswindow.cpp:62: error: undefined reference to `DwmExtendFrameIntoClientArea' D:\GithubRepo\Qt-Nice-Frameless-Window\build-Qt-Nice-Frameless-Window-Desktop_Qt_5_15_2_MinGW_64_bit-Debug\framelesswindow\debug/libframelesswindow.a(framelesswindow.o): In function `CFramelessWindow::setResizeable(bool)': D:\GithubRepo\Qt-Nice-Frameless-Window\build-Qt-Nice-Frameless-Window-Desktop_Qt_5_15_2_MinGW_64_bit-Debug\framelesswindow/../../framelesswindow/framelesswindow.cpp:62: undefined reference to `DwmExtendFrameIntoClientArea' ```` 请问应该如何解决？ 环境： Win 10 21H2 Qt 5.15.2 VS2022(SDK 10)

《Effective C++》中Singleton写法是reference-returning，非pointer-returning