feat：完善信息

app/api/admin/controller/bill/instance.go

@@ -0,0 +1,19 @@
+package bill
+
+import "SciencesServer/app/session"
+
+type Instance struct {
+	*session.Admin
+}
+
+type InstanceHandle func(session *session.Admin) *Instance
+
+func (c *Instance) Index() {
+
+}
+
+func NewInstance() InstanceHandle {
+	return func(session *session.Admin) *Instance {
+		return &Instance{session}
+	}
+}