first commit

.gitignore

LICENSE

NOTICE

README.md

README.zh_CN.md

command.go

command_test.go

domain.go

engine.go

engine_test.go

event.go

event_test.go

eventbus/mem/eventbus.go

eventbus/mem/eventbus_test.go

eventbus/mysql/eventbus.go

eventbus/mysql/eventbus_test.go

eventbus/mysql/po.go

example/biz/sale/application/command/add_coupon.go

example/biz/sale/application/command/add_saleitem.go

example/biz/sale/application/command/create_order.go