├── NFT_Source_code.sol
└── README.md


/NFT_Source_code.sol:
--------------------------------------------------------------------------------
  1 | // SPDX-License-Identifier: MIT
  2 | pragma solidity ^0.8.0;
  3 | 
  4 | import "@openzeppelin/contracts/token/ERC721/extensions/ERC721Enumerable.sol";
  5 | import "@openzeppelin/contracts/utils/structs/EnumerableMap.sol";
  6 | import "@openzeppelin/contracts/utils/structs/EnumerableSet.sol";
  7 | import "@openzeppelin/contracts/utils/math/SafeMath.sol";
  8 | import "@openzeppelin/contracts/access/Ownable.sol";
  9 | import "@openzeppelin/contracts/security/ReentrancyGuard.sol";
 10 | 
 11 | /**
 12 |  * @title 哔哩哔哩：二娃玩转区块链
 13 |  * 微信:zxmeng1999
 14 |  */
 15 | contract StudyNft is ERC721Enumerable, Ownable, ReentrancyGuard {
 16 |     using SafeMath for uint256;
 17 | 
 18 |     bool public isSaleActive = false;
 19 |     string public PROVENANCE = "-";
 20 |     uint public constant maxMintBatch = 20;
 21 |     uint256 public constant tokenPrice = 10000000000000000; // 你要出售的价格0.01 ETH
 22 |     uint256 public maxTokensCount = 11111;
 23 |     address[] private distributions;
 24 |     string private baseURI;
 25 |     string public baseTokenURI;
 26 |     string public contractURI;
 27 | 
 28 |     constructor() ERC721("erwaplayblockchain", "BLO") {
 29 |         baseURI = "ipfs://QmUEJzKyAH8mXXsActmiWrjJgYL8kV6ffPAX9qMvBaHpvz/"; // 填写您的baseURI
 30 |         baseTokenURI = "https://angelicrealm.angelsofaether.com/aoagencontif4hw377/AngelsOfAetherGeneral.json";
 31 |         contractURI = "";
 32 |     }
 33 | 
 34 |     function setDistributions(address[] memory _distributions) public onlyOwner {
 35 |         distributions = _distributions;
 36 |     }
 37 | 
 38 |     function getDistributions() public onlyOwner view returns (address[] memory) {
 39 |         return distributions;
 40 |     }
 41 | 
 42 |     function activateSale() public onlyOwner {
 43 |         isSaleActive = true;
 44 |     }
 45 | 
 46 |     function deactivateSale() public onlyOwner {
 47 |         isSaleActive = false;
 48 |     }
 49 | 
 50 |     function setBaseTokenURI(string memory uri) public onlyOwner {
 51 |         baseTokenURI = uri;
 52 |     }
 53 | 
 54 |     function setContractURI(string memory uri) public onlyOwner {
 55 |         contractURI = uri;
 56 |     }
 57 | 
 58 |     function _baseURI() internal view override returns (string memory) {
 59 |         return baseURI;
 60 |     }
 61 | 
 62 |     function setBaseURI(string memory uri) public onlyOwner {
 63 |         baseURI = uri;
 64 |     }
 65 | 
 66 |     function setPROVENANCE(string memory prov) public onlyOwner {
 67 |         PROVENANCE = prov;
 68 |     }
 69 | 
 70 |     function distribute(uint256 requestedSum) public onlyOwner {
 71 |         require(distributions.length > 1, "Distributions cannot be empty");
 72 |         uint balance = address(this).balance;
 73 |         require(balance > requestedSum, "Requesting too much");
 74 | 
 75 |         uint share = requestedSum / distributions.length;
 76 |         for (uint i = 0; i < distributions.length; i++) {
 77 |             payable(distributions[i]).transfer(share);
 78 |         }
 79 |     }
 80 | 
 81 |     function withdraw() public onlyOwner {
 82 |         uint balance = address(this).balance;
 83 |         payable(msg.sender).transfer(balance);
 84 |     }
 85 | 
 86 |     function reserveAngelsOfAether() public onlyOwner {
 87 |         uint supply = totalSupply();
 88 |         uint i;
 89 |         for (i = 0; i < maxMintBatch; i++) {
 90 |             _safeMint(msg.sender, supply + i);
 91 |         }
 92 |     }
 93 | 
 94 |     function mint(uint numberOfTokens) public payable {
 95 |         require(isSaleActive, "Sale must be active to be able to mint");
 96 |         require(numberOfTokens <= maxMintBatch, "Max 20 tokens can be minted in one batch");
 97 |         require(totalSupply().add(numberOfTokens) <= maxTokensCount, "Purchase would exceed max supply of Tokens");
 98 |         require(tokenPrice.mul(numberOfTokens) <= msg.value, "Ether value sent is not correct");
 99 | 
100 |         for(uint i = 0; i < numberOfTokens; i++) {
101 |             uint mintIndex = totalSupply();
102 |             if (totalSupply() < maxTokensCount) {
103 |                 _safeMint(msg.sender, mintIndex);
104 |             }
105 |         }
106 |     }
107 | 
108 |     function burn(uint256 tokenId) public onlyOwner {
109 |         _burn(tokenId);
110 |     }
111 | }
112 | 


--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
 1 | ### NFT源码项目使用指南🧭
 2 | 
 3 | - 复制源码文件 nft_source_code.sol
 4 | - 粘贴到 http://remix.ethereum.org/
 5 | - 编译项目
 6 | - 部署项目（ETH、Polygon）
 7 | - 调用 activateSale() 开始mint
 8 | - 选择 mint 填写 wei的数量
 9 | 
10 | 
11 | ---
12 | 视频教程：https://linktr.ee/erwaplayblockchain
13 | 
14 | 作者更多内容：
15 | ➡️ 进discord 更多优质内容 ： https://discord.com/invite/RHtf7V6Z5G  （快讯推送，每日优质资料爬取，分类聊天。一站式服务）
16 | 
17 | [discord社群展示](https://s4.ax1x.com/2022/01/22/7fpMTA.png)
18 | 开发+答疑 微信：zxmeng1999
19 | 


--------------------------------------------------------------------------------