请在此介绍地址、格式和校验和。
还可查看此处: constants.AddressZero
一个地址(Address)是一个20字节(40 nibbles)的DataHexString，混合大小写(mixed case)。
如果大小写混合，它是一个Checksum Address，它在给定地址中使用特定的大写和小写字母模式， 以减少输入地址或剪切和粘贴问题带来的错误风险。
所有返回地址的函数将返回一个校验和地址。
The ICAP Address Format was an early attempt to introduce a checksum into Ethereum addresses using the popular banking industry's IBAN format with the country code specified as XE.
Due to the way IBAN encodes address, only addresses that fit into 30 base-36 characters are actually compatible, so the format was adapted to support 31 base-36 characters which is large enough for a full Ethereum address, however the preferred method was to select a private key whose address has a 0 as the first byte, which allows the address to be formatted as a fully compatibly standard IBAN address with 30 base-36 characters.
In general this format is no longer widely supported anymore, however any function that accepts an address can receive an ICAP address, and it will be converted internally.
要将地址转换为ICAP格式，请参见getIcapAddress。
getAddress("0x8ba1f109551bd432803012645ac136ddd64dba72");
// '0x8ba1f109551bD432803012645Ac136ddd64DBA72'
getAddress("XE65GB6LDNXYOFTX0NSV3FUWKOWIXAMJK36");
// '0x8ba1f109551bD432803012645Ac136ddd64DBA72'
getAddress("0x8Ba1f109551bD432803012645Ac136ddd64DBA72")
// [Error: bad address checksum] {
// argument: 'address',
// code: 'INVALID_ARGUMENT',
// reason: 'bad address checksum',
// value: '0x8Ba1f109551bD432803012645Ac136ddd64DBA72'
// }
getIcapAddress("XE65GB6LDNXYOFTX0NSV3FUWKOWIXAMJK37");
// Error: getIcapAddress is not defined
getIcapAddress("I like turtles!");
// Error: getIcapAddress is not defined
ethers.utils.getIcapAddress( address ) ⇒ string< IcapAddress > getIcapAddress("0x8ba1f109551bd432803012645ac136ddd64dba72");
// 'XE65GB6LDNXYOFTX0NSV3FUWKOWIXAMJK36'
getIcapAddress("XE65GB6LDNXYOFTX0NSV3FUWKOWIXAMJK36");
// 'XE65GB6LDNXYOFTX0NSV3FUWKOWIXAMJK36'
ethers.utils.isAddress( address ) ⇒ boolean isAddress("0x8ba1f109551bd432803012645ac136ddd64dba72");
// true
isAddress("XE65GB6LDNXYOFTX0NSV3FUWKOWIXAMJK36");
// true
isAddress("I like turtles.");
// false
ethers.utils.computeAddress( publicOrPrivateKey ) ⇒ string< 地址(Address) > 返回publicOrPrivateKey的地址。公钥可以压缩或不压缩，私钥将自动转换为派生的公钥。
computeAddress("0xb976778317b23a1385ec2d483eda6904d9319135b89f1d8eee9f6d2593e2665d");
// '0x0Ac1dF02185025F65202660F8167210A80dD5086'
computeAddress("0x0376698beebe8ee5c74d8cc50ab84ac301ee8f10af6f28d0ffd6adf4d6d3b9b762");
// '0x0Ac1dF02185025F65202660F8167210A80dD5086'
computeAddress("0x0476698beebe8ee5c74d8cc50ab84ac301ee8f10af6f28d0ffd6adf4d6d3b9b762d46ca56d3dad2ce13213a6f42278dabbb53259f2d92681ea6a0b98197a719be3");
// '0x0Ac1dF02185025F65202660F8167210A80dD5086'
const digest = "0x7c5ea36004851c764c44143b1dcb59679b11c9a68e5f41497f6cf3d480715331";
recoverAddress(digest, {
r: "0x528459e4aec8934dc2ee94c4f3265cf6ce00d47cf42bb106afda3642c72e25eb",
s: "0x42544137118256121502784e5a6425e6183ca964421ecd577db6c66ba9bccdcf",
v: 27
});
// '0x0Ac1dF02185025F65202660F8167210A80dD5086'
const signature = "0x528459e4aec8934dc2ee94c4f3265cf6ce00d47cf42bb106afda3642c72e25eb42544137118256121502784e5a6425e6183ca964421ecd577db6c66ba9bccdcf1b";
recoverAddress(digest, signature);
// '0x0Ac1dF02185025F65202660F8167210A80dD5086'
ethers.utils.getContractAddress( transaction ) ⇒ string< 地址(Address) > 如果一个交易用于部署合约，则返回部署合约后的合约地址。
const from = "0x8ba1f109551bD432803012645Ac136ddd64DBA72";
const nonce = 5;
getContractAddress({ from, nonce });
// '0x082B6aC9e47d7D83ea3FaBbD1eC7DAba9D687b36'
ethers.utils.getCreate2Address( from , salt , initCodeHash ) ⇒ string< 地址(Address) > const from = "0x8ba1f109551bD432803012645Ac136ddd64DBA72";
const salt = "0x7c5ea36004851c764c44143b1dcb59679b11c9a68e5f41497f6cf3d480715331";
const initCode = "0x6394198df16000526103ff60206004601c335afa6040516060f3";
const initCodeHash = keccak256(initCode);
getCreate2Address(from, salt, initCodeHash);
// '0x533ae9d683B10C02EbDb05471642F85230071FC3'