pragma solidity ^0.8.3; contract Mapping{ mapping(address =>uint)pubic myMap; function get(address _addr)pubic view returns(uint){ return myMap
pragma solidity ^0.8.3; contract Mapping{ mapping(address =>uint)pubic myMap; function get(address _addr)pubic view returns(uint){ return myMap[_addr]; } function set(address _addr,uint _i)pubic{ myMap[_addr]=-i; } function remove(address _addr)pubic{ delete myMap[_addr]; } }contract NestedMapping{mapping(address =>mapping(uint =>bool))pubic nested;function get()address )addr1,uint _i}public view returns(bool){return nested[_adddr1][_i];}function set(address _addr1,uint _i,bool _boo)public{nested[_addr1][_i]=_boo;}function remove(address _addr1,uint _i)public{delete nestedp[addr1][i];}}声明：本站所有文章，如无特殊说明或标注，均为本站原创发布。任何个人或组织，在未征得本站同意时，禁止复制、盗用、采集、发布本站内容到任何网站、书籍等各类媒体平台。如若本站内容侵犯了原著者的合法权益，可联系我们进行处理。
