D:\360>cd "MySQL Server 5.7"
D:\360\MySQL Server 5.7>cd bin
D:\360\MySQL Server 5.7\bin>mysqld --initialize --console
2019-08-07T02:08:11.300849Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is
deprecated. Please use --explicit_defaults_for_timestamp server option (see doc
umentation for more details).
2019-08-07T02:08:11.724874Z 0 [Warning] InnoDB: New log files created, LSN=45790
2019-08-07T02:08:12.024891Z 0 [Warning] InnoDB: Creating foreign key constraint
system tables.
2019-08-07T02:08:12.056893Z 0 [Warning] No existing UUID has been found, so we a
ssume that this is the first time that this server has been started. Generating
a new UUID: 35611a71-b8b8-11e9-8e24-28d24409926b.
2019-08-07T02:08:12.064893Z 0 [Warning] Gtid table is not ready to be used. Tabl
e 'mysql.gtid_executed' cannot be opened.
2019-08-07T02:08:12.076894Z 1 [Note] A temporary password is generated for root@
localhost: QTpg4Y!sh:dk
D:\360\MySQL Server 5.7\bin>