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原博客地址： https://blog.csdn.net/chunzhilianxue/article/details/80974202 一、创建Instant实例 Instant now = Instant.now(); System.out.println("now:"+now); 控制台输出： 阅读全文
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> use admin switched to db admin > db.createUser({user:"root",pwd:"root",roles:[{role:"readWrite",db:"admin"},{role:"userAdminAnyDatabase",db:"admin"} 阅读全文
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Welcome to Alibaba Cloud Elastic Compute Service ! [root@liruilong ~]# mdadm -bash: mdadm: command not found [root@liruilong ~]# [root@liruilong ~]# y 阅读全文