1 、概述

1.1 前言

本文档主要通过实例指导如何在HPB主网上发布智能合约教程。

文档阅读人员：社区开发人员、测试人员、运维人员。

1.2 学习准备

1.2.1 Solidity语言

Solidity是一种开源的智能合约高级语言，可以运行支持开源的Ethereum虚拟机(EVM)之上。具体的语言介绍和学习入门，在以下的网址中有详细介绍： https://solidity.readthedocs.io/en/v0.5.2/。

1.2.2 Remix

支持智能合约开发IDE，可以在浏览器中快速部署测试智能合约，支持Solidity语言。访问和使用地址：http://remix.ethereum.org或者http://remix.hpb.io/。

1.2.3 HPB主链接入指导

详情请前往HPB官网的接入详情界面，会指导你如何通过RPC,SDK等方式和主链交互。 https://www.hpb.io/client。

1.2.4 智能合约Demo地址

https://github.com/loglos/web3-hpb-test.git

2 、开发智能合约

2.1 环境准备

2.1.1 通过在线Remix在线编译器进行智能合约开发

请访问链接进行智能合约开发http://remix.ethereum.org具体智能合约的开发请见第3章节。

2.1.2 通过下载Remix开源代码搭建本地开发环境

下载地址：https://github.com/ethereum/remix-ide

• 安装步骤

nstall npm and node.js (see https://docs.npmjs.com/getting-started/installing-node), then do:

Remix-ide has been published as an npm module:

npm install remix-ide -gremix-ide

Or if you want to clone the github repository (wget need to be installed first) :

git clone https://github.com/ethereum/remix-ide.gitgit clone https://github.com/ethereum/remix.git # only if you plan to link remix and remix-ide repositories and develop on it.cd remix-idenpm installnpm run setupremix # only if you plan to link remix and remix-ide repositories and develop on it.npm start

• DEVELOPING:

Run npm start and open http://127.0.0.1:8080 in your browser.

Then open your text editor and start developing. The browser will automatically refresh when files are saved.

Most of the the time working with other modules (like debugger etc.) hosted in the Remix repository is not needed.

Troubleshooting building Some things to consider if you have trouble building the package:

Make sure that you have the correct version of node, npm and nvm. You can find the version that is tested on Travis CI by looking at the log in the build results. Run:

node --versionnpm --versionnvm --version

In Debian based OS such as Ubuntu 14.04LTS you may need to run apt-get install build-essential. After installing build-essential run npm rebuild.

• Unit Testing Register new unit test files in test/index.js. The tests are written using tape.