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:9 r2 f( X, C, F' e3 f# {6 ?
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。: `) m! M' {; a1 I, A
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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。5 k w$ e. }* B
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)。
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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。
- /*( S) @8 P8 ~: n$ J
- This creates a public tradeable fungible token in the Ethereum Blockchain.- g. {- ?2 z9 G3 N" x' G/ q& K q9 }
- 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- z5 n2 |7 {) ]4 j4 ^
- means., v( F+ n" _1 h6 u
- In jurisdictions that recognize copyright laws, the author or authors
- of this software dedicate any and all copyright interest in the& N' n% r( x- O6 Z9 o* a: z
- software to the public domain. We make this dedication for the benefit2 Z8 A- o9 C; Z4 ?4 R+ c5 ~
- of the public at large and to the detriment of our heirs and: a* |; v2 [! U+ ?0 \7 Q% V2 M7 g
- 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.5 ]5 J* {6 Y* d& L" _4 t$ i! ~+ R7 p
- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,4 l& E# `( q% p9 N b
- EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF' Y. C: ], t6 W2 s8 e5 X" i' g
- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.2 j/ H% D4 ~# F+ ^$ {! \7 b" |
- 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.9 A$ y0 _' F" I
- For more information, please refer to
- */
- contract MyToken {; v' s& Q( v& T! w, G
- /* Public variables of the token */
- string public name;: ?9 p: p G6 p2 Y* C' i n
- string public symbol;
- uint8 public decimals;
- /* This creates an array with all balances */3 {+ y- z; W0 {7 i+ f. S0 {, F/ T
- 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) {# y; u( \; `4 g# ~/ \
- /* if supply not given then generate 1 million of the smallest unit of the token */
- if (_supply == 0) _supply = 1000000;% `+ C8 |& @5 C% L9 {. t& e
- /* Unless you add other functions these variables will never change */
- balanceOf[msg.sender] = _supply;
- name = _name;% S8 {: s$ S q+ d0 V! x7 w
- symbol = _symbol;3 H0 b, Q' P' O
- /* If you want a divisible token then add the amount of decimals the base unit has */2 `, M6 H& ]9 e( H+ i ^
- decimals = _decimals;
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- /* Send coins */
- function transfer(address _to, uint256 _value) {
- /* if the sender doenst have enough balance then stop */
- if (balanceOf[msg.sender] 9 o6 m4 K; J( \& e, s
- if (balanceOf[_to] + _value
- /* Add and subtract new balances */6 J& O5 H/ j# p! s9 N
- balanceOf[msg.sender] -= _value;
- balanceOf[_to] += _value;, Y2 ?2 W9 S6 E/ k+ u* b
- /* Notifiy anyone listening that this transfer took place */% j; B! u% V f4 s1 c4 A6 i1 _, P
- Transfer(msg.sender, _to, _value);
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- }
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:
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。
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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)。
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)。) S4 Z" T3 v: l9 y4 D
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。7 p& m. {, Y: g" A2 u7 S3 j) d8 R# ?
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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。 l) S6 {% u$ n. M. `, V
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。8 U" L" p6 ~7 q& J4 Q: }
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再次回到CONTRACTS(合约)页面,点击WATCH TOKEN(查看代币)。9 n- B: Z/ ^9 D
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。 Q. H! n+ o l$ U2 U) g6 x) n. t
完成以后,在合约页面就可以看到新创建的货币了。 m8 Q {' o8 j, L
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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)。) l" Z3 ~7 v# D5 X+ U; y
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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。3 S- A% x; B3 Q$ m3 b