mongodb中的db.getreplicationinfo（）与rs.printreplicationinfo（）之间的用例和区别是什么

1-db.getreplicationinfo（）之间的用例和区别是什么 与mongodb中的rs.printreplicationinfo（）相比。当我运行这两个 RepliSet中的命令如下所示。谁能给我解释一下原因吗 这两个命令和用例之间的区别

(mongod-3.4.9)[PRIMARY:s0] local> db.getReplicationInfo()`
`

{
  "logSizeMB": 6714.337890625,
  "usedMB": 208.66,
  "timeDiff": 2152896,
  "timeDiffHours": 598.03,
  "tFirst": "Sat Sep 23 2017 17:48:27 GMT+0530 (IST)",
  "tLast": "Wed Oct 18 2017 15:50:03 GMT+0530 (IST)",
  "now": "Wed Oct 18 2017 15:50:09 GMT+0530 (IST)"
}


(mongod-3.4.9)[PRIMARY:s0] local> db.getReplicationInfo()

{
  "logSizeMB": 6714.337890625,
  "usedMB": 208.66,
  "timeDiff": 2152896,
  "timeDiffHours": 598.03,
  "tFirst": "Sat Sep 23 2017 17:48:27 GMT+0530 (IST)",
  "tLast": "Wed Oct 18 2017:50:03 GMT+0530 (IST)",
  "now": "Wed Oct 18 2017 15:50:09 GMT+0530 (IST)"
}

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根据文件： 格式化并打印db.getReplicationInfo（）返回的数据：

db.getReplicationInfo（）发回可在脚本中使用的对象/文档