摘要： 错误代码：Loaded plugins: fastestmirrorLoading mirror speeds from cached hostfileTraceback (most recent call last):File “/usr/bin/yum”, line 29, in yummain.user_main(sys.argv[1:], exit_code=True)File “/usr/share/yum-cli/yummain.py”, line 309, in user_main errcode = main(args)File “/usr/share/yum-cli/yumm 阅读全文