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迷宫寻宝?Qt5 下载与加速安装指南!

  • 2026-09-18 12:30:08
迷宫寻宝?Qt5 下载与加速安装指南!

导语:

Qt 商业化团队把开源免费版的入口藏得比俄罗斯套娃还深!今天,我把压箱底的 Qt5 下载与极速安装避坑指南 整理出来。不管你是刚入坑的新手,还是重装系统的老鸟,看这一篇就够了!建议点赞收藏,下次重装电脑绝对用得上!


🛑 痛点一:如何在官网“迷宫”中找到开源免费版?

打开 qt.io 官网,满屏绿色的“Download”“Try Qt”按钮都在疯狂暗示你:快点我,快来填表试用商业版!如果你点了这些按钮,恭喜你,你已经走进了商业授权的死胡同。

🗺️ 正确的寻宝路线图:

打开官网主页,无视首屏的所有绿色大按钮
直接把网页拉到最最最底部(页脚)。
在 Download 分类下,找到一行不起眼的灰色小字:Open Source for Hobbyists(致爱好者的开源版)。
点击进入后,向下滚动,找到Download the Qt Online Installer按钮。
网站会自动识别你的操作系统,点击 Download,你终于拿到了名为 qt-unified-windows-x64-online.exe 的在线安装包!

💡 避坑提示:从 Qt 5.15 开始,官方彻底取消了开源版的离线安装包(Last Version 是 5.14.2)。想用 5.15.x 甚至 5.15.2 LTS,只能通过这个在线安装包,或者我后面教你的“黑客”手段。


🕵️‍♂️ 痛点二:在线安装包里,Qt5 去哪儿了?

拿到在线安装包,注册并登录了 Qt 账号后,很多人在“选择组件”这一步又傻眼了:列表里只有 Qt 6.x,根本没有 Qt 5!
这其实是官方的障眼法,想要召唤出 Qt 5,你需要做这个隐藏操作:
在组件选择界面的右侧,有一个Archive(存档)复选框。
勾选Archive,然后点击旁边的Filter(筛选)按钮。
稍等几秒钟,展开 Qt 树节点,你会发现 Qt 5.15.2 甚至更老的版本像变魔术一样全部弹出来了!
根据你的编译器(如 MSVC 2019 64-bit 或 MinGW)勾选所需组件,就可以点击下一步了。

🚀 痛点三:下载速度 10KB/s?一招切换国内镜像!

通过官方在线安装器下载,如果不挂梯子,速度经常会掉到几十 KB/s,中间还容易断线报错。
别急,我们可以强行给安装包注入国内高校镜像源!
把你下载好的 qt-unified-windows-x64-online.exe 放在 D 盘根目录。
打开 Windows 的 cmd 命令行,输入以下命令(直接复制粘贴):
cmd    D:\qt-unified-windows-x64-online.exe --mirror https://mirrors.tuna.tsinghua.edu.cn/qt
回车运行!此时弹出的 Qt 安装界面,底层下载链路已经全部被劫持到了清华大学镜像站
满宽带下载,享受 10MB/s+ 的极致推背感,几分钟就能装完!
(注:如果清华源不稳定,可以把网址换成中科大的https://mirrors.ustc.edu.cn/qtproject)

💻 终极必杀技:不用账号、不点 UI,程序员的黑客装法!

如果你嫌上面的步骤还是太繁琐(又要注册 Qt 账号,又要在一堆复选框里找半天),那我必须向你隆重介绍一个开源神器:aqtinstall(Another Qt Installer)
这是一个由纯 Python 编写的命令行工具,无需登录 Qt 账号、无需图形界面、直连国内镜像、自动剥离垃圾组件,直接把精简版 Qt 下到你指定的目录!

极速操作三部曲:

第一步:安装工具(前提是你电脑上有 Python 环境):
pip install aqtinstall
第二步:一条命令执行下载:比如我想在 Windows 下安装 Qt 5.15.2 的 MSVC 2019 64位 版本,直接执行:
aqt install-qt windows desktop 5.15.2 win64_msvc2019_64 -m https://mirrors.ustc.edu.cn/qtproject/
第三步:泡杯咖啡,等待完成。它会自动在当前目录下生成一个 5.15.2 文件夹,里面就是纯净、完整、开箱即用的 Qt 环境!把你工程的 CMake 或 VS 指向这个路径,直接起飞!

📚 延伸:寻找古董级离线安装包(Qt 5.14 及以下)

如果你的老工程死活需要 Qt 5.12 LTS 或者 Qt 5.14.2,由于这些版本当年是有官方 .exe 离线完整安装包的,你可以完全抛弃官网,直接去国内镜像站“进货”。
国内良心镜像直达链接(浏览器直接打开):
清华大学开源软件镜像站
https://mirrors.tuna.tsinghua.edu.cn/qt/archive/qt/
中国科学技术大学镜像站
https://mirrors.ustc.edu.cn/qtproject/archive/qt/
点进去找到你需要的版本(如 5.14/5.14.2),直接下载几个 G 的 .exe 安装包即可。

总结

虽然 Qt 官方现在主推 Qt 6,但在工业控制、EDA、医疗软件等领域,极其稳定的 Qt 5.15.2 依然是绝对的中流砥柱
希望这篇文章能帮你节省下宝贵的找链接和下软件的时间,把精力都留在编写优雅的代码上!如果这篇指南帮到了你,或者你还有什么 Qt 相关的环境深坑,欢迎在评论区留言交流!

你的每一次 [点赞]、[在看] 和 [分享],都是我熬夜掉头发输出干货的最大动力!我们下期干货见! 👇👇👇

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  1. CONNECT:[ UseTime:0.000462s ] mysql:host=172.18.0.4;port=3306;dbname=no_yeyulingfeng;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000607s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000386s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000335s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000659s ]
  6. SELECT * FROM `set` [ RunTime:0.000312s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000655s ]
  8. SELECT * FROM `article` WHERE `id` = 490231 LIMIT 1 [ RunTime:0.000422s ]
  9. UPDATE `article` SET `lasttime` = 1789713361 WHERE `id` = 490231 [ RunTime:0.001034s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.000306s ]
  11. SELECT * FROM `article` WHERE `id` < 490231 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000381s ]
  12. SELECT * FROM `article` WHERE `id` > 490231 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000457s ]
  13. SELECT * FROM `article` WHERE `id` < 490231 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000795s ]
  14. SELECT * FROM `article` WHERE `id` < 490231 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000653s ]
  15. SELECT * FROM `article` WHERE `id` < 490231 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000841s ]
0.085293s