基于以太坊区块链开发的投票应用
License: MIT License
基于以太坊区块链开发的投票应用
此Demo是采用truffle开发框架进行开发的，使用之前必须先安装truffle。
npm install -g truffle推荐先在私有区块链网络上进行测试，测试通过之后再部署到正式网络上。可以使用Ganache或truffle develop工具快速搭建以太坊测试网络，对于习惯使用图形界面的用户，推荐使用Ganache。如果对命令行操作比较熟悉的话，也可以使用ganache-cli或truffle develop。
首先打开Ethereum客户端，以truffle develop作为客户端进行说明，truffle develop默认使用的rest API地址为http://127.0.0.1:9545，打开truffle.js，配置好网络。
编译
truffle compile迁移
truffle migrate使用浏览器进行访问，要注意的是，访问以太坊Dapp必须使用专用的浏览器。Firefox、Chrome以及Opera等浏览器可以使用metamask插件进行访问。
1.代码中sol用的是^0.4.17，但是语法却不符合该版本的语法规范，需要0.4.22以后的solc才可以。
2.我看到作者commit记录，最开始$.ajaxJSON用的是..build/contracts路径，后面改成了contrats/路径，似乎还是应该用..build/contracts？要么人工去copy到src目录下
3.代码中何处调用了钱包？发起投票会报如下错误：
Error: invalid address
at v (web3.min.js:2:4288)
at l (web3.min.js:2:2260)
at web3.min.js:2:14456
at Array.map (<anonymous>)
at i.formatInput (web3.min.js:2:14429)
at i.toPayload (web3.min.js:2:14658)
at r.e [as sendTransaction] (web3.min.js:2:14964)
at c.sendTransaction (web3.min.js:2:6896)
at c.execute (web3.min.js:2:7725)
at truffle-contract.js:190:16猜测原因是没有调用钱包签名直接发起的交易？（迷惑）难道不需要签名吗？？
最后一个疑问，这个项目star有几十个，也有很多fork，大家都没有遇到相关问题吗？（可能是我太菜
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