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 Base Learn Newcomer

NFT 1: Own a(n) Basic Contracts Pin NFT

https://sepolia.basescan.org/token/0x075eb9dc52177aa3492e1d26f0fde3d729625d2f


Base Learn Acolyte

NFT 2: Own a(n) Control Structures Pin NFT

https://sepolia.basescan.org/token/0xf4d953a3976f392aa5509612deff395983f22a84


NFT 3： Own a(n) Arrays Pin NFT

https://sepolia.basescan.org/token/0x5b0f80ca6f5bd60cc3b64f0377f336b2b2a56cdf


NFT 4: Own a(n) Storage Pin NFT

https://sepolia.basescan.org/token/0x567452c6638c0d2d9778c20a3d59749fdcaa7ab3



Base Learn Consul

NFT 5: Own a(n) Mappings Pin NFT

https://sepolia.basescan.org/token/0xd32e3ace3272e2037003ca54ca7e5676f9b8d06c


NFT 6: Own a(n) Inheritance NFT

https://sepolia.basescan.org/token/0xf90da05e77a33fe6d64bc2df84e7dd0069a2111c


NFT 7: Own a(n) Structs Pin NFT

https://sepolia.basescan.org/token/0x9eb1fa4cd9bd29ca2c8e72217a642811c1f6176d



Base Learn Perfect

NFT 8: Own a(n) Error Triage Pin NFT

https://sepolia.basescan.org/token/0xc1bd0d9a8863f2318001bc5024c7f5f58a2236f7


NFT 9: Own a(n) New Keyword Pin NFT

https://sepolia.basescan.org/token/0x4f21e69d0cde8c21cf82a6b37dda5444716afa46


NFT 10：Own a(n) Imports Pin NFT

https://sepolia.basescan.org/token/0x8dd188ec36084d59948f90213afcd04429e33c0c



Base Learn Supreme

NFT 11: Own a(n) SCD ERC721 Pin NFT

https://sepolia.basescan.org/token/0x15534ed3d1dba55148695b2ba4164f147e47a10c


NFT 12: Own a(n) Minimal Token Pin NFT

https://sepolia.basescan.org/token/0x10ce928030e136ecc74d4a4416db9b533e3c694d


NFT 13: Own a(n) ERC20 Pin NFT

https://sepolia.basescan.org/token/0x4f333c49b820013e5e6fe86634dc4da88039ce50



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Base Learn Newcomer - 1 含代码Basic Contracts

Basic Contracts——SafeMathContract 部署的时候要点CONTRACT，然后选择SafeMathContract这个部署，否则会出错 复制代码 // SPDX-License-Identifier: UNLICENSED pragma solidity ^0.8.23; interface IBasicContractTest { function adder( uint _a, uint _b ) external returns (uint result, bool success); function subtractor( uint _a, uint _b ) external returns (uint result, bool success); } contract SafeMathContract is IBasicContractTest { function adder( uint _a, uint _b ) external pure override returns (uint result, bool success) { if (type(uint).max - _a _a) { return (0, true); } else { result = _a - _b; return (result, false); } } }
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Base Learn Supreme-5——SCD ERC721 、Minimal Token、ERC20

感谢X用户@isnotberlin提供的代码 以下是，Base Learn Supreme的3个NFT代码，SCD ERC721 、Minimal Token、ERC20 1. Own a(n) SCD ERC721 Pin NFT Solidity 接口 复制代码 // SPDX-License-Identifier: MIT pragma solidity ^0.8.0; // Importing OpenZeppelin ERC721 contract import "https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/token/ERC721/ERC721.sol"; // Interface for interacting with a submission contract interface ISubmission { // Struct representing a haiku struct Haiku { address author; // Address of the haiku author string line1; // First line of the haiku string line2; // Second line of the haiku string line3; // Third line of the haiku } // Function to mint a new haiku function mintHaiku( string memory _line1, string memory _line2, string memory _line3 ) external; // Function to get the total number of haikus function counter() ...
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Base Learn Acolyte -2含代码Storage、Structures、Arrays

感谢X用户@timurwp1提供的代码 以下是，Base Learn Acolyte的3个NFT代码，Storage、Structures、Arrays 1. Own a(n) Storage Pin NFT Solidity 接口 复制代码 // SPDX-License-Identifier: UNLICENSED pragma solidity ^0.8.23; contract EmployeeStorage { string public name; uint public idNumber; uint24 private salary; uint16 private shares; constructor() { name = "Pat"; idNumber = 112358132134; salary = 50000; shares = 1000; } function grantShares(uint16 _newShares) external { require(_newShares 直接复制代码，在Remix IDE部署 2. Own a(n) Control Structures Pin NFT Solidity 接口 复制代码 // SPDX-License-Identifier: UNLICENSED pragma solidity ^0.8.23; contract ControlStructures { error AfterHours(uint256 time); function fizzBuzz(uint256 _number) external pure returns (string memory) { if (_number % 15 == 0) { ...
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