下载钱包
首先到这里(https://github.com/ethereum/mist/releases)根据自己的操作系统下载相应的钱包。
然后,创建一个以太坊账户。(具体的创建过程请见这个中文帖子:http://ethfans.org/topics/78 )。另外,你还需要一点以太币,大多数合约只需要价值几毛钱的以太币。
创建账户并购买到1个以太币以后,钱包界面如下图:
创建新币合约
我们要创建的第一个合约是一个代币合约。以太坊生态系统中的代币可以代表任何可以交易的东西:币(coin)、积分、黄金证券、欠条(IOU)等。因为所有的代币都以标准化的方式实现一些基本的特性,这样意味着你自己创建的代币将于以太坊钱包、使用相同标准的任何其它客户端或者合约相兼容。
点击红框中的Contract(合约),看到如下界面。
将红框中原有的代码删除,将下面的代码粘贴到里面。
/*
This creates a public tradeable fungible token in the Ethereum Blockchain.
https://github.com/ethereum/wiki/wiki/Standardized_Contract_APIs
Unmodified this will create a cryptoasset with a fixed market cap
wholly owned by the contract creator. You can create any function
to change this contract, like allowing specific rules for the issuance,
destruction and freezing of any assets. This contract is intended for
educational purposes, you are fully responsible for compliance with
present or future regulations of finance, communications and the
universal rights of digital beings.
Anyone is free to copy, modify, publish, use, compile, sell, or
distribute this software, either in source code form or as a compiled
binary, for any purpose, commercial or non-commercial, and by any
means.
In jurisdictions that recognize copyright laws, the author or authors
of this software dedicate any and all copyright interest in the
software to the public domain. We make this dedication for the benefit
of the public at large and to the detriment of our heirs and
successors. We intend this dedication to be an overt act of
relinquishment in perpetuity of all present and future rights to this
software under copyright law.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
OTHER DEALINGS IN THE SOFTWARE.
For more information, please refer to <http://unlicense.org>
*/
contract MyToken {
/* Public variables of the token */
string public name;
string public symbol;
uint8 public decimals;
/* This creates an array with all balances */
mapping (address => uint256) public balanceOf;
/* This generates a public event on the blockchain that will notify clients */
event Transfer(address indexed from, address indexed to, uint256 value);
/* Initializes contract with initial supply tokens to the creator of the contract */
function MyToken(uint256 _supply, string _name, string _symbol, uint8 _decimals) {
/* if supply not given then generate 1 million of the smallest unit of the token */
if (_supply == 0) _supply = 1000000;
/* Unless you add other functions these variables will never change */
balanceOf[msg.sender] = _supply;
name = _name;
symbol = _symbol;
/* If you want a divisible token then add the amount of decimals the base unit has */
decimals = _decimals;
}
/* Send coins */
function transfer(address _to, uint256 _value) {
/* if the sender doenst have enough balance then stop */
if (balanceOf[msg.sender] < _value) throw;
if (balanceOf[_to] + _value < balanceOf[_to]) throw;
/* Add and subtract new balances */
balanceOf[msg.sender] -= _value;
balanceOf[_to] += _value;
/* Notifiy anyone listening that this transfer took place */
Transfer(msg.sender, _to, _value);
}
}
如果代码编译成功,在左边将看到Pick contract,如下图:
然后,选择MyToken选项,如下图:
![](/qrcode.jpg)
然后,在右边更改系数,定制自己的货币。supply: 货币总量,name: 货币名字,symbol:货币符号,decimals:货币单位精确到小数点后几位。
下图定制的Shaopingcoin(少平币),总量10000个,货币符号:WL,货币单位精确到小数点后八位。根据自己的喜好,填写即可。 SELECT FEE(选择费用),左右拖动横轴选择支付多少手续费(这里就需要用到前面购买到的以太币了),越靠近右边,费用越高,完成合约的速度越快。例如,我选择了0.016131个以太币,大约需要30秒完成合约。完成后,点击DEPLOY(部署)。
点击DEPLOY后,自动转到如下界面,输入密码(即创建账户时设置的 密码),点击SEND TRANSACTION(发送交易)。
然后,会跳转到钱包主界面,你会看到下面红色方框中的信息,大约需要3-4分钟的确认时间,完成12个确认就可以了。
显示新创建的货币。
确认完毕,然后再进入CONTRACTS(合约)页面,你将看到刚才创建的货币,例如下图中的ShaopingCoin。
点击创建的货币,转到以下界面,复制红色方框中的合约地址,下面的步骤中要用到。
再次回到CONTRACTS(合约)页面,点击WATCH TOKEN(查看代币)。
弹出如下界面,将刚才复制的地址粘贴到红色方框中,会看到货币的名字、符号等信息。点击OK。
完成以后,在合约页面就可以看到新创建的货币了。
发送新创建的新货币
进入SEND(发送)页面,在右上角的红色方框中输入收款者的账户地址。在AMOUT中填写发送的数量,在右边的红色方框中选择要发送的货币。左右拖动横轴选择费用,越靠近右边费用越高,处理速度越快。下图表示向0xba960dbedc4c2e0774729b2def16764592ced454地址发送10个ShaopingCoin,交易费用是0.00253625个以太币。点击SEND(发送)。
跳转到如下确认界面,输入密码(即创建账户时设置的密码)。点击SEND TRANSACTION(发送交易)。
回到WALLETS(钱包)界面,会看到刚刚发出的记录信息。
收款者需要将新创建的币的添加到WATCH Token中才可以看到收到的币。收款者进入CONTRACT(合约)页面,点击WATCH TOKEN。发送者将创建的新币的合约地址通过聊天工具发给收款者。
将发送者新创建币的合约地址复制到红色方框中,点击OK。
收款者在WALLETS(钱包)页面将看到收到的币。下图显示收到了10个ShaopingCoin。
教程结束。