centos7上的docker启动失败,报错如下: Job for docker.service failed because start of the service was attempted too often. See "systemctl status docker.service" and "journalctl -xe" for details.To force a start
linux下可以直接执行sed命令,mac下总是报错:command a expects \ followed by text 通过搜索发现,mac下不能直接使用sed,需要使用gsed命令,但是需要先下载gnu-sed brew install gnu-sed 安装成功后,再次执行命令成功 (base) ➜ ~ gsed '2 a newline' test.txtrootr
Element type “bean” must be followed by either attribute specifications or 出错原因) 如下图所示: 情况有两种,一个是id和class之间没有空格造成,还有另外一种可能是复制过来后字符集出现问题,也能导致这种情况的产生。 (初来乍到,请大佬们多指教)