如何找到我正在使用的solidity编译器版本？
如何找到我正在使用的solidity编译器版本？
提问于 2016-04-22 02:18:21
特别是在使用迷雾的时候。当我通过Mist GUI创建一个契约时，我希望能够在Etherscan上验证源代码。但是，以太扫描要求您提供编译器版本，以及是否启用了优化。
- 如何找到我所拥有的Mist版本的编译器版本？
- 优化总是启用的还是总是禁用的？
- 测试网和主网之间有区别吗？
注意:我正在寻找如何找到编译器版本的答案，而不是当前的Mist编译器版本(这将使答案仅是暂时的)。
回答 2
Ethereum用户
回答已采纳
发布于 2016-04-22 02:29:51
迷雾/ Ethereum现在有一个内置编译器，除了教程中的屏幕截图之外，这个编译器没有很好的文档来创建、编译和部署契约。但是，Mist的编译器的版本和它是否是优化的is...hard来找出。
- 转到Mist发布页面。
- 单击正在使用的发行版。ie: 0.5.2
- 点击顶部的“代码”。示例链接
- 单击“Package.json”。示例链接
- 去找
"solc": "^0.X.X-X",。这就是版本。所以对于Mist 0.5.2，solc版本是0.2.1-1.
但是，这并不一定解决在EtherScan上进行验证的问题。无论我尝试了什么(我尝试了很多次)，我也无法获得匹配的令牌代码。如果你想和我一起跳下去，请看下面的评论。
如果在EtherScan上进行验证对您很重要，那么可以在任何地方编写您的可靠代码，但是在这里使用浏览器的可靠性来编译它：http://chriseth.github.io/browser-solidity/。
然后使用字节码进行部署。我还没有对它进行测试，但是它为样例令牌契约所输出的代码与EtherScan输出的代码相匹配。我假设EtherScan使用相同的基于浏览器的编译器来检查和验证契约。
如果您使用的是Mix / Solidity，您可以通过(在Mix中)转到File/Mix/Help -> About来查看Solidity版本。
如果您正在使用solc / Solidity (命令行接口)，您可以使用命令web3.eth.compile，然后该命令将显示如下内容：
contract = eth.compile.solidity(source).test
{
code: '605280600c6000396000f3006000357c010000000000000000000000000000000000000000000000000000000090048063c6888fa114602e57005b60376004356041565b8060005260206000f35b6000600782029050604d565b91905056',
info: {
language: 'Solidity',
languageVersion: '0',
compilerVersion: '0.9.13',
abiDefinition: [{
constant: false,
inputs: [{
name: 'a',
type: 'uint256'
} ],
name: 'multiply',
outputs: [{
name: 'd',
type: 'uint256'
} ],
type: 'function'
} ],
userDoc: {
methods: {
}
},
developerDoc: {
methods: {
}
},
source: 'contract test { function multiply(uint a) returns(uint d) { return a * 7; } }'
}
}这将编译您的代码，并提供诸如编译器版本等信息。
优化是您可以做出的选择。通过solc，您可以使用--optimize标志。您可以在这里更多地了解这个神奇的优化属性：稳健优化器是如何工作的？。我认为Mist是基于这样一个事实进行优化的:我在EtherScan上选择“非优化”时有73%的相似性，在选择优化时有93%的相似性。
合同测试：
我使用Mistv0.5.2创建了精确的契约https://www.ethereum.org/token#the-code，对代码没有任何更改。
Etherscan.io收到的/ Mist发送的合同代码是：
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您可以在EtherScan上看到这一点，也可以通过打开控制台并运行TokenContract.eth.getCode('YOUR_ADDRESS_HERE_NO_0x_AT_BEGINNING'); -- Mist和EtherScan --输出相同的代码，从而在EtherScan中获得它。
我试着用浏览器坚固性来验证可能有20个不同的版本，不管有没有优化，而且从来没有像Etherscan.io那样短的代码，也没有从0x开始.
下面是一个使用0.2.1-3ad5e821 w/ EtherScan的浏览器可靠性的示例：
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....it仍然不符合Mist据称发送和EtherScan收到的内容。
在进行研究时，我发现EtherChain在验证方面可能更幸运。然而，我仍然不能得到任何超过93%的相似性(使用2.1.1，优化)。
希望这能帮上忙。
Ethereum用户
发布于 2016-04-22 19:24:11
现在没有真正简单的方法。我正在自己想办法;-)
当您以电子方式运行开发人员版本时，您可以始终转到运行迷雾代码的文件夹，并键入：
node
然后将您带到节点终端，在那里您可以检查您的可靠版本：
var solc = require('solc')
solc.version()
> '0.2.1-91a6b35f/.-Emscripten/clang/int linked to libethereum-'理想情况下，我们的目标是让迷雾在网络上广播源代码和编译器版本，以便像etherchain和以太扫描这样的服务可以对其进行验证。
上一次我试着验证ethereum (我自己部署的)上的合同时，我只能得到97%的相似度。我还没有机会对其进行测试，但我相信区别在于发送给构造函数的参数，因为更改只发生在文件的末尾。
页面原文内容由Ethereum提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://ethereum.stackexchange.com/questions/3256
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