量化合约系统开发运营版丨量化合约开发源码版及策略
智能合约dapp开发技术主要由以太坊区块链网络提供支持，该网络提供了一系列的智能合约技术，These smart contracts allow developers to quickly and safely build powerful dapps.The development technology of smart contract dapp mainly includes Ethereum smart contract language Solidity,Ethereum smart contract framework Truffle,Web3.js,Ethereum blockchain browser Mist,etc
Web3.0通过将信息交互从屏幕转移到物理空间，改变了终端用户体验，因而也有称Web3.0为“空间网络（Spatial Web）”。该“空间网络”包括空间交互层（利用智能眼镜或语音等实现实时信息交互）、数字信息层（借助传感和数字映射为每一个对象创建数字孪生）和物理层（通过感观了解和体验的世界）。VR/AR is the main gateway of the space network,AI/ML promotes interaction with machines or devices,5G/6G and other new generation network communication technologies and edge computing are enabling technologies to optimize interactive experience,and blockchain promotes the realization of a truly open and democratic ecosystem.
Web3.0基础设施主要包括节点基础设施、存储、预言机、安全审计、数据分析平台、钱包、开发工具等。开发威：MrsFu123 如钱包服务用户链上资产的存储，是Web3.0的重要入口，如Metamask（加密货币钱包）、WalletConnect（钱包通用协议）等。
//查询某地址是否有某操作的权限
function checkPermission(address addr,uint operation)public constant returns(bool){
if(operation==MODIFY_AUTHORITY_ISSUER){
if(adminRoleBearer[addr]||committeeMemberRoleBearer[addr]){
return true;
}
}
if(operation==MODIFY_COMMITTEE){
if(adminRoleBearer[addr]){
return true;
}
}
if(operation==MODIFY_ADMIN){
if(adminRoleBearer[addr]){
return true;
}
}
if(operation==MODIFY_KEY_CPT){
if(authorityIssuerRoleBearer[addr]){
return true;
}
}
return false;
}
//给某地址添加权限
function addRole(address addr,uint role)public{
案例I35详细7O98系统O7I8
if(role==ROLE_AUTHORITY_ISSUER){
//检查合约调用者是否有相应修改的权限
if(checkPermission(tx.origin,MODIFY_AUTHORITY_ISSUER)){authorityIssuerRoleBearer[addr]=true;}
}
if(role==ROLE_COMMITTEE){
if(checkPermission(tx.origin,MODIFY_COMMITTEE)){committeeMemberRoleBearer[addr]=true;}
}
if(role==ROLE_ADMIN){
if(checkPermission(tx.origin,MODIFY_ADMIN)){
adminRoleBearer[addr]=true;
}
}
}
