找到约 12 条结果

问题 opensea上不显示metadata中的图片

..."Inspiring, Based, Mythical, Oracle loving creature. Leading the new world and helping teach about superior digital agreements. Also is good with a bow!", "image": "https://ipfs.io/ipfs/QmTgqnhFBMkfT9s8PHKcdXBn1f5bG3Q5hmBaR4U6hoTvb1?filename=Chainlink_Elf.png", "attributes": [ { "trait_type": "S...

问题 发布合约失败 事务已恢复到初始状态

...tial state. Note: The called function should be payable if you send value and the value you send should be less than your current balance. Debug the transaction to get more information ```

问题 bulletproofs的原理

...论文-A Blockchain-Based Sealed-Bid e-Auction Scheme with Smart Contract and Zero-Knowledge Proof。 里面有一个过程  c是投标价格p的pederson承诺 c*是中标人的那个承诺 为什么用...

问题 调用metamask向合约转账，交易失败。

...pected to fail. Trying to execute it is expected to be expensive but fail, and is not recommended. ``` React代码 ``` async function payWithMetamask() { ``` ``` let ethereum = window.ethereum; // Request account access if needed await ethereum.enable(); let provider = new ethers.pro...

问题 请教下：部署 pancakeRouter.sol有警告 提示不能部署在mainnet

...t PancakeRouter is IPancakeRouter02 { ^ (Relevant source part starts here and spans across multiple lines).

问题 如何检测一个transaction是否会失败？

...ackexchange.com/questions/765/what-is-the-difference-between-a-transaction-and-a-call 目前我了解的有2个方法，但是不确定是否是正确的实现 1. estimateGasFee 2. call instead of send transaction 大家有什么想法或者建议吗？

用户 Frankenstein Pei

DeFi investor and creator

问题 php调用智能合约报错

...nvalidArgumentException: Please make sure you have put all function params and callback. in D:\wwwroot\NFTtest\vendor\sc0vu\web3.php\src\Contract.php:561 Stack trace: #0 D:\wwwroot\NFTtest\1.php(28): Web3\Contract->send('transfer', '0x6669867D746ba...', Array, Object(Closure)) #1 {main} thrown in D:...

招聘 全栈工程师

... cryptography + Masters in CS Experience +++ Has worked on well known and successful crypto projects +++ Has experience with Rust + Has worked in complex, technically demanding fields (compilers, AI / machine learning, VR, graphics, hardware, operating systems) + Has developed a crypto node ...

招聘 高级后端开发工程师（golang）

...测试 编写相关的技术文档 What you will do Develop and test the modules according to system design requirements Integration Testing Write related technical documents 岗位技能要求 大学本科及以上学历，计算机相关专业 精通一门主流...

问题 contract里面的内容是有上限的吗？

...多个contract来实现？ Warning: Contract code size is 25855 bytes and exceeds 24576 bytes (a limit introduced in Spurious Dragon). This contract may not be deployable on Mainnet. Consider enabling the optimizer (with a low "runs" value!), turning off revert strings, or using libraries. 同...

文章 Solidity 中 uint 转为 bytes

...数,　如：keccak256　](https://learnblockchain.cn/docs/solidity/units-and-global-variables.html#index-5)　等需要bytes作为一个参数，这个时候有时需要把uint转化为bytes　。 ## uint 如何转为 bytes　类型 Solidity 中 uint 转 bytes 的几种方法，gas 消耗...