启动mongodb数据库：
我本地是window10环境，我的mongodb服务安装在F盘的mongodb文件夹。我的数据目录在F的data文件夹。
启动doc命令,输入一下命令:
F:>mongodb/bin F:mongodbbin>mongod --path=/data/db
启动成功输出以下信息:
2016-10-20T17:11:01.839+0800 I CONTROL [initandlisten] MongoDB starting : pid=1504 port=27017 dbpath=/data/db 64-bit host=Haier-PC
2016-10-20T17:11:01.842+0800 I CONTROL [initandlisten] targetMinOS: Windows 7/Windows Server 2008 R2
2016-10-20T17:11:01.844+0800 I CONTROL [initandlisten] db version v3.0.12-47-gd57ef6a
2016-10-20T17:11:01.844+0800 I CONTROL [initandlisten] git version: d57ef6a0c5a41729977f8d535a4c8de6d0cff8ba
2016-10-20T17:11:01.844+0800 I CONTROL [initandlisten] build info: windows sys.getwindowsversion(major=6, minor=1, build=7601, platform=2, service_pack='Service Pack 1') BOOST_LIB_VERSION=1_49
2016-10-20T17:11:01.844+0800 I CONTROL [initandlisten] allocator: tcmalloc
2016-10-20T17:11:01.844+0800 I CONTROL [initandlisten] options: { storage: { dbPath: "/data/db" } }
2016-10-20T17:11:01.860+0800 I JOURNAL [initandlisten] journal dir=/data/dbjournal
2016-10-20T17:11:01.862+0800 I JOURNAL [initandlisten] recover : no journal files present, no recovery needed
2016-10-20T17:11:01.971+0800 I JOURNAL [durability] Durability thread started
2016-10-20T17:11:01.972+0800 I JOURNAL [journal writer] Journal writer thread started
2016-10-20T17:11:02.186+0800 I INDEX [initandlisten] allocating new ns file /data/dblocal.ns, filling with zeroes...
2016-10-20T17:11:02.553+0800 I STORAGE [FileAllocator] allocating new datafile /data/dblocal.0, filling with zeroes...
2016-10-20T17:11:02.554+0800 I STORAGE [FileAllocator] creating directory /data/db_tmp
2016-10-20T17:11:02.600+0800 I STORAGE [FileAllocator] done allocating datafile /data/dblocal.0, size: 64MB, took 0.012 secs
2016-10-20T17:11:02.654+0800 I NETWORK [initandlisten] waiting for connections on port 27017
最后一行显示"waiting for connections on port 27017"，表明mongodb服务器已经启动，正在27017窗口等待连接。
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