找到约 15 条结果

文章 HOH_Move共学_task2

...ion; use coins::coin_a; use sui::coin; use sui::coin::{mint_and_transfer,TreasuryCap}; use sui::transfer::{public_share_object,public_freeze_object}; use sui::tx_context::TxContext; public struct COIN_B has drop{} fun init (witness:COIN_B,ctx:&mut TxContext){ ...

文章 Memory 典例分析&内存安全

...: ```diff /// @dev Fallback function forwards all transactions and returns all received return data. fallback() external payable { // solhint-disable-next-line no-inline-assembly assembly { @> let _singleton := sload(0) // 0xa619486e ...

问题 在truffle的宠物商店的教程中出现这样的问题,帮忙解答一下啊:Error: The network id specified in the truffle config (4447) does not match the one returned by the network (5777) . Ensure that both the network and the provider are properly configured.

问题 熊哥你好,调用uniswap路由合约addLiquidityETH方法,The called function should be payable if you send value and the value you send should be less than your current balance

我是使用的remix的内置账户,并且在上面部署了,工厂,路由,weth,和一个token的合约。 内置账户地址:0x5B38Da6a701c568545dCfcB03FcB875f56beddC4 ETH余额:99.9999 ![image.png](https://img.learnblockchain.cn/attachments/2023/04/KIL93VPf6445eace584f9.png) token...

文章 如何使用 NFTScan NFT API 在 PlatON 网络上开发 Web3 应用

.../own" account_address = "lat1cghxn3j8j4h7sxw0rey9jzc9388tp7aede4870" # Construct API request URL url = f"{api_endpoint}/{account_address}" # Make an HTTP GET request response = requests.get(url) # Check if the request was successful if response.status_code == 200: # Get the returne...

文章 Zengo 的安全多方计算 ECDSA GG18 和 GG20 代码详解

...1.2.4 第二阶段:共享密钥生成 ``` pub fn phase2_verify_vss_construct_keypair_phase3_pok_dlog( &self, params: &Parameters, y_vec: &[Point], secret_shares_vec: &[Scalar], vss_scheme_vec: &[VerifiableSS], index: u16, ) -> Result { let correct_ss_verif...

文章 如何在比特币上使用序数和符文API进行构建

...pi?utm_source=internal&utm_campaign=guides&utm_content=build-with-ordinals-and-runes-api) 提供了一种简化的解决方案。 本指南向开发者介绍了 Ordinals 和 Runes 在 Bitcoin 上的功能,并演示了如何利用这些概念来使用 QuickNode 的 [Ordinals 和 Runes API](https:/...

问题 hardhat solidity不同版本,不能正常编译

... see reasons below. These files import other files that use a different and incompatible version of Solidity: * @soliditylabs/erc20-permit/contracts/ERC20Permit.sol (^0.7.0) imports @openzeppelin/contracts/token/ERC20/ERC20.sol (^0.8.0) and @openzeppelin/contracts/utils/Counters.sol (^0.8.0) ...

文章 sui move动态字段

...结构体 ```rust /// Internal object used for storing the field and value struct Field has key { /// Determined by the hash of the object ID, the field name value and it's type, /// i.e. hash(parent.id || name || Name) id: UID, /// The value for the ...

文章 ERC721/ERC1155合约开发与合约安全

... import "../IERC721.sol"; /** * @title ERC-721 Non-Fungible Token Standard, optional metadata extension * @dev See https://eips.ethereum.org/EIPS/eip-721 */ interface IERC721Metadata is IERC721 { /** * @dev Returns the token collection name. */ function name() exter...

文章 安全审计中Try_Catch问题

...d in case // revert was called inside getData // and a reason string was provided. errorCount++; return (0, false); } catch Panic(uint /*errorCode*/) { // This is executed in case of a panic, // i.e. a serious err...

文章 同化博格:DAO相邻实体的新型密码法律框架

...索赔都被 “ [经济损失原则](https://www.americanbar.org/groups/construction_industry/publications/under_construction/2021/spring2021/economic_loss_doctrine/)” 排除或严重阻碍,该原则(在冒着一些简化的风险的情况下)指出,在被告与原告之间不存在 “...

文章 Taproot Assets:协议、闪电网络兼容性

...含的都是空的叶子,可以用 nil 哈希值来代表。 ![constructing-a-sparse-merkle-tree](https://img.learnblockchain.cn/attachments/2024/08/gKXNNyHE66bddcfdb02bf.png) > - 构造一棵稀疏默克尔树 - 举个例子,我们可以使用一种虚构的哈希函数 sha002 ...

文章 使用 Yul 优化 Gas 成本

...ly { sstore(0, number()) sstore(2, _player1) let glAndGip := or(0x0000000000000000000001000000000000000000000000000000000000000000, sload(3)) sstore(3, or(glAndGip, _player2)) } } ``` `require()` 相同,但之后我们深入一些 Yul。首先,我们将区块...

问题 智能合约一段代码看不懂,请求大佬指点一下

...; uint _transferTax=0; //The taxes are split into different uses and need to add up to "TAX_DENOMINATOR" uint _marketingTax=5000; uint _reflectionTax=4000; uint _liquidityTax=1000; uint _contractTax=TAX_DENOMINATOR-_reflectionTax; //percentage of pancakePair that s...