开源软件
您可以找到相关的5个网页,并输出它们的URL.
1.https://en.wikipedia.org/wiki/开源_软件 2.https://opensource.org 3.https://opensource.com/resources/what-open-source 4.https://www.gnu.org/philosophy/free-sw.en.html 5.https://www.redhat.com/en/topics/open-source/what-is-open-source-software