feat：完善项目

app/controller/config/instance.go

@@ -0,0 +1,24 @@
+package config
+
+import (
+	"ArmedPolice/app/service"
+	"ArmedPolice/config"
+)
+
+type Instance struct{ *service.Session }
+
+type InstanceHandle func(session *service.Session) *Instance
+
+// Area 区域信息
+func (c *Instance) Area(key string) map[string]string {
+	if key == "" {
+		key = config.DefaultChinaAreaCode
+	}
+	return config.SettingAreaInfo[key]
+}
+
+func NewInstance() InstanceHandle {
+	return func(session *service.Session) *Instance {
+		return &Instance{session}
+	}
+}