my.ini

# For advice on how to change settings please see
# http://dev.mysql.com/doc/refman/5.7/en/server-configuration-


defaults.html
# *** DO NOT EDIT THIS FILE. It's a template which will be copied to the
# *** default location during install, and will be replaced if you
# *** upgrade to a newer version of MySQL.


[mysqld]


# Remove leading # and set to the amount of RAM for the most important 


data
# cache in MySQL. Start at 70% of total RAM for dedicated server, else 


10%.
# innodb_buffer_pool_size = 128M


# Remove leading # to turn on a very important data integrity option: 


logging
# changes to the binary log between backups.
# log_bin


# These are commonly set, remove the # and set as required.
#mysql根目錄
basedir =C:\Program Files\mysql-5.7.16-winx64
#mysql資料檔案存放目錄
datadir =C:\Program Files\mysql-5.7.16-winx64\data
# port = .....埠，預設3306
# server_id = .....服務例項的唯一標識




# Remove leading # to set options mainly useful for reporting servers.
# The server defaults are faster for transactions and fast SELECTs.
# Adjust sizes as needed, experiment to find the optimal values.
# join_buffer_size = 128M
# sort_buffer_size = 2M
# read_rnd_buffer_size = 2M 


sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES 

修改完畢後，在命令視窗執行以下命令：

　　開始——執行——cmd，然後cd到mysql安裝目錄的bin下面，我的目錄是“C:\Program Files\mysql-5.7.16-winx64\bin”，然後執行mysqld -install,提示服務安裝成功！執行services.msc一看，確實有一個名為MySQL的服務了。

而後執行命令：mysqld --initialize-insecure --user=mysql

net start mysq   可以看到服務啟動了