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<a class="post-title-link" href="/2018/03/31/erc-721/" itemprop="url">以太坊令牌系列之非同质化令牌ERC721</a></h1>
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0x00 写在前面在2013年7月，一款被称为MasterCoin的项目通过数字货币论坛Bitcointalk募集了超过5000个比特币，至此开启了区块链界的新的一轮资金众筹的方式。后来跃居数字货币市值榜第二的以太坊网络在主网上线后，推出了一个功能，发行代币。而这个功能将区块链界的资金募集推上了高峰。
为了更快速化的发行一款令牌，以太坊社区制定了一个令牌标准规范ERC20，直接将代币的发行时间降低到10分钟以内。
而最近火热的猫猫狗狗游戏，本质上也是一种基于以太坊网络的令牌，每一只猫或者狗都是一
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<a class="post-title-link" href="/2018/03/26/ethereum-erc-20/" itemprop="url">以太坊标准代币系列之同质化代币ERC20</a></h1>
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0x00 写在前面众所周知，以太坊在现阶段最大的应用就是代币发行，而在以太坊中有很多类型的代币，最著名的当属ERC20了，但是对于其他几种代币类型，可能还有一些朋友不知道，所以最近规划了一个系列，就是以太坊标准代币系列。
目前市面上，凡是基于以太坊的代币，在交易所上线交易的均是ERC20代币，那么今天我们就来聊聊ERC20代币的标准方案吧。
0x01 ERC20标准制定动机在基于以太坊发行代币时，如果各个代币发行方都使用自有标准去发行代币，那对于钱包开发者以及交易所对接成本是极其高昂了，因为他们
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0x00 起始大多数人在初学智能合约开发的时候，都是选择使用remix进行合约的开发以及部署。remix是集Solidity的编辑器，编译器，部署于一身的集成开发工具，非常方便，也非常好用。之前一直使用Remix或者truffle，最近使用web3进行智能合约的部署，分享下。
0x01 准备工作在使用web3进行合约的部署，一般需要使用准备以下几个库：
1、 solcsolc 是以太坊官方出的一款Solidity语言开发的智能合约的编译工具，可以通过solc 获得部署合约时所要使用的 bytec
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<a class="post-title-link" href="/2018/03/01/bitcoin-utxo-ethereum-balance-md/" itemprop="url">比特币和以太坊技术原理对比之账户模型</a></h1>
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大多数初学区块链技术的朋友，都是从比特币和以太坊的技术原理来入手的。这两个项目有很多相同之处，但是他们在细节的实现上是有挺多的区别的，今天我们就来说说账户模型的区别。
0x00 如何正确表述两者的余额比特币和以太坊在实现余额的处理上，采用了不同的机制，比特币采用了UTXO未花费交易输出；而以太坊采用了维护账户状态机制。
在比特币中，其实并没有所谓的账户，只有比特币地址。正确的表述一个比特币地址里面的余额，应该是这样的：小明的比特币地址里面拥有价值20个比特币的UTXO(下面讲何为UTXO)。
在
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