终于发下是这里写错了。

Unhandled rejection SequelizeDatabaseError: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'class Sequelize {

  /**

   * Instantiate sequelize with name of database, userna' at line 1

    at Query.formatError (F:\lin-cms\lin-cms-koa\node_modules\sequelize\lib\dialects\mysql\query.js:244:16)

    at Query.handler [as onResult] (F:\lin-cms\lin-cms-koa\node_modules\sequelize\lib\dialects\mysql\query.js:51:23)

    at Query.execute (F:\lin-cms\lin-cms-koa\node_modules\mysql2\lib\commands\command.js:30:14)

    at Connection.handlePacket (F:\lin-cms\lin-cms-koa\node_modules\mysql2\lib\connection.js:425:32)

    at PacketParser.onPacket (F:\lin-cms\lin-cms-koa\node_modules\mysql2\lib\connection.js:75:12)

    at PacketParser.executeStart (F:\lin-cms\lin-cms-koa\node_modules\mysql2\lib\packet_parser.js:75:16)

    at Socket.<anonymous> (F:\lin-cms\lin-cms-koa\node_modules\mysql2\lib\connection.js:82:25)

    at Socket.emit (events.js:200:13)

    at addChunk (_stream_readable.js:294:12)

    at readableAddChunk (_stream_readable.js:275:11)

    at Socket.Readable.push (_stream_readable.js:210:10)

    at TCP.onStreamRead (internal/stream_base_commons.js:166:17)

老师，哪一句呢