成功解决pip安装库报错 Could not build wheels for multidict, which is required to install pyproject.toml-based_error: could not build wheels for multidict, which

这几天用Python开发个项目，需要用到异步http请求，aiohttp，安装的时候却一直未成功，报错内容

Microsoft Visual C++ 14.0 or greater is required. Get it with "Microsoft C++ Build Tools": https://vi
sualstudio.microsoft.com/visual-cpp-build-tools/
...
 Could not build wheels for multidict, which is required to install pyproject.toml-based projects
...
 No matching distribution found for aiohttp 
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开始以为是 multidict 库的问题，便从网站下载文件到本地后再安装（https://pypi.org/project/multidict/#files），问题依旧，

经过反复尝试，最后把问题确定在“Microsoft Visual C++ 14.0”上，按装提示“https://vi
sualstudio.microsoft.com/visual-cpp-build-tools/”下载【vs_BuildTools】进行安装
下载Microsoft C++ Build Tools
打开网址： https://visualstudio.microsoft.com/visual-cpp-build-tools/
点击下载【下载生成工具】，并打开。

进行安装，点击继续

需要等待几分钟

重要的地方来了

正常安装后，重启电脑，再次安装，顺利完成。