提交工程，小程序源码已完成，单片机待完成

wex_small/miniprogram_npm/@vant/weapp/common/relation.d.ts

@@ -0,0 +1,15 @@
+/// <reference types="miniprogram-api-typings" />
+type TrivialInstance = WechatMiniprogram.Component.TrivialInstance;
+export declare function useParent(name: string, onEffect?: (this: TrivialInstance) => void): {
+    relations: {
+        [x: string]: WechatMiniprogram.Component.RelationOption;
+    };
+    mixin: string;
+};
+export declare function useChildren(name: string, onEffect?: (this: TrivialInstance, target: TrivialInstance) => void): {
+    relations: {
+        [x: string]: WechatMiniprogram.Component.RelationOption;
+    };
+    mixin: string;
+};
+export {};