智能合约（Smart Contract），是一段部署在区块链上的代码，(刘森-180-2857-8624)一旦某个事件触发合约中的条款，代码就会自动执行。用人话来讲就是：智能合约是一份基于密码学这种高科技上面的数字化合同，与传统的纸质合同的差异就是：自动售货机相当于智能合约，售货员相当于纸质合同。

 def install

 #ENV.deparallelize#if your formula fails when building in parallel

 #Remove unrecognized options if warned by configure

 system"./configure","--disable-debug",

 "--disable-dependency-tracking",

 "--disable-silent-rules",

 "--prefix=#{prefix}"

 #system"cmake",".",*std_cmake_args

 system"make","install"#if this fails,try separate make/make install steps

 end

 system后面是需要执行的安装命令，这个根据实际软件编译过程进行修改。

 因为bytom是已经编译好的二进制软件包，所以实际的文件进行修改如下：

 class Bytom<Formula

 desc"Official Go implementation of the Bytom protocol"

 homepage"https://bytom.io/"

 url"https://github.com/Bytom/bytom/releases/download/v1.0.7/bytom-1.0.7-darwin_amd64.tgz"

 version"1.0.7"

 sha256"25dd62343157fe6eb7a983edb1455f457cfca07552f02e1f9142227bd961a4a5"

 def install

 system'mv bytomd-darwin_amd64 bytomd'

 system'mv bytomcli-darwin_amd64 bytomcli'

 bin.install"bytomd"

 bin.install"bytomcli"

 end

 test do

 #`test do`will create,run in and delete a temporary directory.

 #

 #This test will fail and we won't accept that!For Homebrew/homebrew-core

 #this will need to be a test that verifies the functionality of the

 #software.Run the test with`brew test bytom`.Options passed

 #to`brew install`such as`--HEAD`also need to be provided to`brew test`.

 #

 #The installed folder is not in the path,so use the entire path to any

 #executables being tested:`system"#{bin}/program","do","something"`.

 system"false"

 end

 end