Windows PowerShell配置Qt5编译运行环境

Qt5环境变量依赖

变量	作用	示例
QTDIR	指向 Qt 套件根目录	C:\Qt\Qt5.14.2\5.14.2\mingw73_64
PATH	Qt 运行时路径	%QTDIR%\bin
QT_PLUGIN_PATH	用于确保平台插件（如 qwindows.dll）可被找到	%QTDIR%\plugins
QML2_IMPORT_PATH	QML组件依赖	%QTDIR%\qml
CMAKE_PREFIX_PATH	CMake找Qt的关键模块	find_package(Qt5 ...)

① 添加cmake.exe到PowerShell环境变量

$env:Path = "C:\Program Files\CMake\bin;$env:Path"

② Qt5环境变量导入

$env:QTDIR = "C:\Qt\Qt5.14.2\5.14.2\mingw73_64"
$env:Path = "$env:QTDIR\bin;C:\Qt\Qt5.14.2\Tools\mingw730_64\bin;$env:Path"
$env:QT_PLUGIN_PATH = "$env:QTDIR\plugins"
$env:QML2_IMPORT_PATH = "$env:QTDIR\qml"
$env:CMAKE_PREFIX_PATH = $env:QTDIR

③ 执行cmake

④ 清除工程生成的中间文件

⑤ 编译工程

⑥ 运行应用