ubuntu依赖包管理相关博客

• https://appuals.com/fix-unable-correct-problems-held-broken-packages/
• https://itsfoss.com/held-broken-packages-error/
• https://askubuntu.com/questions/140246/how-do-i-resolve-unmet-dependencies-after-adding-a-ppa?newreg=96e886475cae45008601b33668693322