另外,你还需要一点以太币,大多数合约只需要价值不要1毛钱的以太币。如果你没有以太币,又不想到国外交易所折腾,可以选择用微信扫描下面的二维码直接在微信中购买:
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创建账户并购买到1个以太币以后,钱包界面如下,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)。# G5 ~3 W+ M/ g. c' I L
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将红框中原有的代码删除,将下面的代码粘贴到里面。
- /*. y" F- N7 e7 w9 ^/ |! n; }- o
- This creates a public tradeable fungible token in the Ethereum Blockchain.
- https://github.com/ethereum/wiki/wiki/Standardized_Contract_APIs. l8 i, t: o W; v: r' U
- Unmodified this will create a cryptoasset with a fixed market cap
- wholly owned by the contract creator. You can create any function) d9 i9 |2 f! G9 M
- 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+ q' I* N3 P3 I, D1 n+ ?- Q5 U
- 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 the8 a4 A1 q* G0 ~, T- I7 h# a: ~% H
- software to the public domain. We make this dedication for the benefit3 O4 _- Y1 `& a
- of the public at large and to the detriment of our heirs and n6 j% `* `+ E; R4 W
- 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.9 n; |4 x% V$ h
- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF8 @0 Z* @, {5 O# J7 u% V3 j' H
- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.' Z3 }; u7 t8 U2 h0 E- M
- IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR1 I. ]# q0 q) ~' m5 @
- 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.# M; j3 p/ H/ N; f- z
- For more information, please refer to . f: E3 N) B" ~) J; h
- */
- contract MyToken {
- /* Public variables of the token */7 ]* M( `! c: d, Z
- string public name;
- string public symbol;
- uint8 public decimals;
- /* This creates an array with all balances */ _# v+ [# F" f c" w: L% ?: r
- mapping (address => uint256) public balanceOf;4 [6 S9 S" R$ |; g& t
- /* 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 */7 P I" z2 c0 L4 {+ i* Q. m
- function MyToken(uint256 _supply, string _name, string _symbol, uint8 _decimals) {7 w, k, [/ \4 K3 m; p
- /* if supply not given then generate 1 million of the smallest unit of the token */
- if (_supply == 0) _supply = 1000000;% @' \: X6 F1 N) x0 v' p
- /* Unless you add other functions these variables will never change */
- balanceOf[msg.sender] = _supply;
- name = _name;
- symbol = _symbol; W; `0 Q) k m* U- k
- /* If you want a divisible token then add the amount of decimals the base unit has */
- decimals = _decimals;" c/ U/ l; ?( r3 o9 ?- V0 Z
- }
- /* Send coins */
- function transfer(address _to, uint256 _value) {
- /* if the sender doenst have enough balance then stop */# X' ?% X# }$ h! ^2 e
- if (balanceOf[msg.sender] ! Q- f N) _2 k1 d4 i' `
- if (balanceOf[_to] + _value ; ~2 Q$ |: z, R) I6 b/ b. c' }
- /* Add and subtract new balances */
- balanceOf[msg.sender] -= _value;
- balanceOf[_to] += _value;+ K ]5 x3 |" H2 F# u: x7 d$ `; Y
- /* Notifiy anyone listening that this transfer took place */
- Transfer(msg.sender, _to, _value);# I5 o# h3 n9 q$ [. H7 a7 l/ X
- }! P& K1 w. Z9 `
- }
如果代码编译成功,在左边将看到Pick contract,如下图:
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然后,选择MyToken选项,如下图:
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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。9 U% w7 g+ L0 o( F6 N. q
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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)。 V% Y" t! q- j& `$ E* d! ^: e
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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)。
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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。; C+ K/ Z1 @: m1 ~7 |, e
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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。) w) K) n# J( a ~
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。( O4 N2 G3 l7 }/ B' F* @
完成以后,在合约页面就可以看到新创建的货币了。& r) W- q: `: n: R" `) E' y
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)。
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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。! s9 }, D' {- h4 h( w
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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。
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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。9 J, F( h- X; u