ethers-rs rust 创建钱包，签名消息，验证签名，恢复签名地址,签名RSV对象

创建钱包

let wallet = LocalWallet::new(&mut rand::thread_rng());
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私钥返回钱包对象

let wallet = "私钥".parse::().unwrap();
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钱包签名消息

let signature = wallet.sign_message("hello world").await?;
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签名验证

 if signature.verify("hello world", wallet.address()).is_ok(){
            println!("ok--");
        }else{
           println!("fail---");
        }

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签名恢复钱包地址

let recovered = signature.recover("hello world")?;
assert_eq!(recovered,wallet.address());
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签名恢复RSV对象

let sign = "签名字符串".parse::()?;
let r = sign.r;
let s = sign.s;
let v = sign.v;
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