# 安装docker
sudo yum install -y yum-utils device-mapper-persistent-data lvm2
sudo yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
sudo yum install docker-ce docker-ce-cli containerd.io
sudo systemctl start docker
# 设置开机启动
sudo systemctl enable docker
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object "Contract" { | |
code { | |
datacopy(0, dataoffset("runtime"), datasize("runtime")) | |
return(0, datasize("runtime")) | |
} | |
object "runtime" { | |
code { | |
if iszero(calledByOwner()) { revert(0, 0) } | |
switch selector() | |
case 0x00 { |
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pragma solidity ^0.4.11; | |
/** | |
* @title Ownable | |
* @dev The Ownable contract has an owner address, and provides basic authorization control | |
* functions, this simplifies the implementation of "user permissions". | |
*/ | |
contract Ownable { | |
address public owner; |