invitation

Imports

• github.com/coscms/webcore/library/backend
• github.com/coscms/webcore/library/common
• github.com/coscms/webcore/registry/route
• github.com/coscms/webfront/model/official/customer
• github.com/webx-top/com
• github.com/webx-top/db
• github.com/webx-top/echo
• github.com/webx-top/echo/formfilter
• github.com/webx-top/echo/param

Standard library imports

• strings
• time