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<!doctype html><html lang="zh-CN"><head><meta charset="utf-8" /><meta name="viewport" content="width=device-width,initial-scale=1" /><meta name="generator" content="VuePress 2.0.0-rc.24" /><meta name="theme" content="VuePress Theme Plume 1.0.0-rc.164" /><script id="check-mac-os">document.documentElement.classList.toggle('mac', /Mac|iPhone|iPod|iPad/i.test(navigator.platform))</script><script id="check-dark-mode">;(function () {const um= localStorage.getItem('vuepress-theme-appearance') || 'auto';const sm = window.matchMedia && window.matchMedia('(prefers-color-scheme: dark)').matches;const isDark = um === 'dark' || (um !== 'light' && sm);document.documentElement.dataset.theme = isDark ? 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name="description" content="题目一 原题： 1.食品信息（FoodInfoItem）的接口编码 （1）编写食品信息实体的接口，完成可溯源食品信息初始化，实现可追溯的原始生产商食品信息上链功能 （2）编写分销商食品上链信息接口，根据食品溯源智能合约地址获取分销商上链食品的信息 （3）编写超市进行食品上链信息的接口，根据食品溯源智能合约地址获取超市上链食品信息。 2.食品溯源(Tra..."><link rel="preload" href="/assets/style-PWY98LJg.css" as="style"><link rel="stylesheet" href="/assets/style-PWY98LJg.css"><link rel="modulepreload" href="/assets/app-COnnofor.js"><link rel="modulepreload" href="/assets/index.html-CrxPbgg2.js"></head><body><div id="app"><!--[--><!--[--><div class="theme-plume vp-layout" vp-container data-v-f73ca3da><!--[--><!--[--><!--]--><!--[--><span tabindex="-1" data-v-17e3d305></span><a href="#VPContent" class="vp-skip-link visually-hidden" data-v-17e3d305> Skip to content </a><!--]--><!----><header class="vp-nav" data-v-f73ca3da data-v-e98a6132><div class="vp-navbar" vp-navbar data-v-e98a6132 data-v-2c31ea5e><div class="wrapper" data-v-2c31ea5e><div class="container" data-v-2c31ea5e><div class="title" data-v-2c31ea5e><div 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