--reinstall 是重新安裝，首次安裝沒有開--reset參數，所以用了重裝參數。

--install 是安裝。 

（后來重啟電腦后，那個刪不掉的服務自己消失了）

如果看不懂E文，可以復制拿去Google翻譯文檔。 


復制代碼代碼如下:
E:/mongodb246/bin>mongod.exe -help
Allowed options:</p><p>General options:
-h [ --help ] show this usage information
--version show version information
-f [ --config ] arg configuration file specifying additional options
-v [ --verbose ] be more verbose (include multiple times for more
verbosity e.g. -vvvvv)
--quiet quieter output
--port arg specify port number - 27017 by default
--bind_ip arg comma separated list of ip addresses to listen on
- all local ips by default
--maxConns arg max number of simultaneous connections - 20000 by
default
--logpath arg log file to send write to instead of stdout - has
to be a file, not directory
--logappend append to logpath instead of over-writing
--pidfilepath arg full path to pidfile (if not set, no pidfile is
created)
--keyFile arg private key for cluster authentication
--setParameter arg Set a configurable parameter
--auth run with security
--cpu periodically show cpu and iowait utilization
--dbpath arg directory for datafiles - defaults to /data/db/
--diaglog arg 0=off 1=W 2=R 3=both 7=W+some reads
--directoryperdb each database will be stored in a separate
directory
--ipv6 enable IPv6 support (disabled by default)
--journal enable journaling
--journalCommitInterval arg how often to group/batch commit (ms)
--journalOptions arg journal diagnostic options