4.4 DAPP实战- 使用truffle创建项目

truffle 可以帮助我们创建，编译，测试一个solidity项目。他使用npm进行安装

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使用truffle初始化一个工程，可以看到工程下有如下文件

(blockchain_principle-x-Y8P0ch) ~/project/solidity/pet-shop truffle initDownloading...Unpacking...Setting up...Unbox successful. Sweet!Commands:Compile: truffle compileMigrate: truffle migrateTest contracts: truffle test(blockchain_principle-x-Y8P0ch) ~/project/solidity/pet-shop lscontracts migrations test truffle-config.js truffle.js(blockchain_principle-x-Y8P0ch) ~/project/solidity/pet-shop tree.├── contracts│ └── Migrations.sol -- 合约文件├── migrations│ └── 1_initial_migration.js --部署脚本├── test --测试文件存放目录├── truffle-config.js --配置文件└── truffle.js3 directories, 4 files(blockchain_principle-x-Y8P0ch) ~/project/solidity/pet-shop

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(blockchain_principle-x-Y8P0ch) ~/project/solidity/pet-shop_2 ls(blockchain_principle-x-Y8P0ch) ~/project/solidity/pet-shop_2 truffle unbox pet-shopDownloading...Unpacking...Setting up...Unbox successful. Sweet!Commands:Compile: truffle compileMigrate: truffle migrateTest contracts: truffle testRun dev server: npm run dev(blockchain_principle-x-Y8P0ch) ~/project/solidity/pet-shop_2 lsbox-img-lg.png box-img-sm.png bs-config.json contracts migrations node_modules package-lock.json package.json src （前端源文件） test truffle.js

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ganache 可以是运行在我们本地内存环境的一个虚拟的节点（只有一个节点的区块链），然后会为我们创建账号，trauffle利用这个节点来提供环境测试项目