> 原文:[https://www . geesforgeks . org/pyqt 5-设置-工具-提示-组合框/](https://www.geeksforgeeks.org/pyqt5-setting-tool-tip-to-the-combo-box/) 在本文中 ...

> 原文:[https://www . geeksforgeeks . org/pyqt 5-设置-背景色-查看-部分-组合框/](https://www.geeksforgeeks.org/pyqt5-set-background-color-to-view-part-of ...

Ubuntu is a free computer system, like Windows or macOS, but it’s built by a community. It’s great for programmers because it’s very flexible and has lots of tools already built-in that help you code.