我有两个合同地址,我想在一次电话中检查这两个事件。我的意思是,我们能不能像下面一样,在一个选项中传递两个合同地址?
let web3 = new Web3();
web3.setProvider(web3Provider);
let options = {
fromBlock:'latest',
toBlock: 'latest',
address: ADDRESS1,Address2
};
let filter = web3.eth.filter(options);
filter.watch(function(error, result){
c
我正在阅读来自solidity的几个示例:文档。我遇到过这样的功能:
function claimPayment(uint256 amount, uint256 nonce, bytes memory signature) external {
require(!usedNonces[nonce]);
usedNonces[nonce] = true;
// this recreates the message that was signed on the client
bytes32 message = prefixed(ke
我想知道在继承的情况下,谁仍然能够调用原始的覆盖函数。
让我们假设我有以下设置:
contract A{
address public owner;
function A(){
owner = msg.sender;
}
function doSomething(){
// does something
}
}
contract B is A{
function doSomething(){
require(msg.sender == owner);
// do something like A
我的印象是,使用帐户抽象,我将能够直接启动智能契约调用而不需要EOA。然而,在阅读了zkSync的帐户抽象示例之后,情况并非如此。
// The two owners of the multisig
const owner1 = Wallet.createRandom();
const owner2 = Wallet.createRandom();
您需要上述两个EOA的签名才能使用multisig发送任何事务。
const signature = ethers.utils.concat([
// Note, that `signMessage` wouldn't wo
来自文档:
// The Contract interface
let abi = [ ... ];
// Connect to the network
let provider = ethers.getDefaultProvider();
// The address from the above deployment example
let contractAddress = "...";
// We connect to the Contract using a Provider, so we will only
// have read-only access t