您需要的是自定义构建步骤.

What you need is a custom build step.

1. 切换到项目模式:按 Ctrl+5.
2. 在构建步骤下的构建设置标签上，点击添加构建步骤.
3. 从菜单中选择制作.
4. 将安装写入制作参数:文本输入框.

1. Switch to Projects Mode: press Ctrl+5.
2. On Build Settings tab under Build Steps click on Add Build Step.
3. Choose Make from the menu.
4. Write install into Make arguments: text input box.

(我检查这些的版本是 Qt Creator 2.4.1.)

(The version where I checked these is Qt Creator 2.4.1.)