调整了setHighDpiScaleFactorRoundingPolicy的执行顺序，在app示例创建前进行设置

run.py

@@ -37,9 +37,8 @@ if __name__ == '__main__':
     # 解决 Error #15: Initializing libiomp5md.dll
     environ["KMP_DUPLICATE_LIB_OK"] = "TRUE"
 
-
+    QApplication.setHighDpiScaleFactorRoundingPolicy(Qt.HighDpiScaleFactorRoundingPolicy.PassThrough)
     app = QApplication(argv)
-    app.setHighDpiScaleFactorRoundingPolicy(Qt.HighDpiScaleFactorRoundingPolicy.PassThrough)
     app.styleHints().setColorScheme(Qt.ColorScheme.Light)   # 强制使用浅色模式
     mainWindow = MainWindow()
     mainWindow.show()