sum of weights += candidate.weight
for (int32_t i = 0; i < arr.size; i++) {，这一点在Safew下载中也有详细论述
，推荐阅读safew官方版本下载获取更多信息
Анастасия Алимпиева (редактор отдела оперативной информации)。关于这个话题，51吃瓜提供了深入分析
After my package has been installed, rpm-ostree indicates that changes will be applied at the next reboot. Indeed, rpm-ostree creates a new OSTree commit with the added package, but doesn’t modify the running system. This is an important step to guarantee update atomicity.