mysql丢失comment注释的went

zhgc

-c, --comments      Preserve comments. Send comments to the server. The
                     default is --skip-comments (discard comments), enable
                     with --comments.

mysql -u root --password=xxx 　--comment　< test.sql

加上 --comment选项．

详见：
--comments, -i

Write additional information in the dump file such as program version, server version, and host. This option is enabled by default. To suppress this additional information, use --skip-comments.