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andOneBasketball
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| Original file line number | Diff line number | Diff line change |
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@@ -4,3 +4,4 @@ | |
| # OpenZeppelin contracts | ||
| /contracts/@openzeppelin | ||
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| /keystore | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,42 +1,44 @@ | ||
| package main | ||
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| // 钱包账户转账交易 | ||
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| import ( | ||
| "context" | ||
| "fmt" | ||
| "log" | ||
| "math" | ||
| "math/big" | ||
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| "github.com/ethereum/go-ethereum/common" | ||
| "github.com/ethereum/go-ethereum/ethclient" | ||
| "context" | ||
| "fmt" | ||
| "log" | ||
| "math" | ||
| "math/big" | ||
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| "github.com/ethereum/go-ethereum/common" | ||
| "github.com/ethereum/go-ethereum/ethclient" | ||
| ) | ||
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| func main() { | ||
| client, err := ethclient.Dial("http://127.0.0.1:8545/") | ||
| if err != nil { | ||
| log.Fatal(err) | ||
| } | ||
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| account := common.HexToAddress("0xf39Fd6e51aad88F6F4ce6aB8827279cffFb92266") | ||
| balance, err := client.BalanceAt(context.Background(), account, nil) | ||
| if err != nil { | ||
| log.Fatal(err) | ||
| } | ||
| fmt.Println(balance) // 25893180161173005034 | ||
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| blockNumber := big.NewInt(37) | ||
| balanceAt, err := client.BalanceAt(context.Background(), account, blockNumber) | ||
| if err != nil { | ||
| log.Fatal(err) | ||
| } | ||
| fmt.Println(balanceAt) // 25729324269165216042 | ||
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| fbalance := new(big.Float) | ||
| fbalance.SetString(balanceAt.String()) | ||
| ethValue := new(big.Float).Quo(fbalance, big.NewFloat(math.Pow10(18))) | ||
| fmt.Println(ethValue) // 25.729324269165216041 | ||
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| // PendingBalanceAt 获取的是挂起的余额 | ||
| pendingBalance, err := client.PendingBalanceAt(context.Background(), account) | ||
| fmt.Println(pendingBalance) // 25729324269165216042 | ||
| } | ||
| client, err := ethclient.Dial("http://127.0.0.1:8545/") | ||
| if err != nil { | ||
| log.Fatal(err) | ||
| } | ||
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| account := common.HexToAddress("0xf39Fd6e51aad88F6F4ce6aB8827279cffFb92266") | ||
| balance, err := client.BalanceAt(context.Background(), account, nil) | ||
| if err != nil { | ||
| log.Fatal(err) | ||
| } | ||
| fmt.Println(balance) // 25893180161173005034 | ||
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| blockNumber := big.NewInt(37) | ||
| balanceAt, err := client.BalanceAt(context.Background(), account, blockNumber) | ||
| if err != nil { | ||
| log.Fatal(err) | ||
| } | ||
| fmt.Println(balanceAt) // 25729324269165216042 | ||
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| fbalance := new(big.Float) | ||
| fbalance.SetString(balanceAt.String()) | ||
| ethValue := new(big.Float).Quo(fbalance, big.NewFloat(math.Pow10(18))) | ||
| fmt.Println(ethValue) // 25.729324269165216041 | ||
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| // PendingBalanceAt 获取的是挂起的余额 | ||
| pendingBalance, err := client.PendingBalanceAt(context.Background(), account) | ||
| fmt.Println(pendingBalance) // 25729324269165216042 | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,46 @@ | ||
| package main | ||
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| // 订阅最新的区块数据 | ||
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| import ( | ||
| "context" | ||
| "fmt" | ||
| "log" | ||
| "time" | ||
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| "github.com/ethereum/go-ethereum/core/types" | ||
| "github.com/ethereum/go-ethereum/ethclient" | ||
| ) | ||
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| func main() { | ||
| client, err := ethclient.Dial("wss://sepolia.infura.io/ws/v3/2609a5dca17044dcafeb303333027af1") | ||
| if err != nil { | ||
| log.Fatal(err) | ||
| } | ||
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| headers := make(chan *types.Header) | ||
| sub, err := client.SubscribeNewHead(context.Background(), headers) | ||
| if err != nil { | ||
| log.Fatal(err) | ||
| } | ||
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| for { | ||
| select { | ||
| case err := <-sub.Err(): | ||
| log.Fatal(err) | ||
| case header := <-headers: | ||
| fmt.Println(header.Hash().Hex()) // 0xbc10defa8dda384c96a17640d84de5578804945d347072e091b4e5f390ddea7f | ||
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| block, err := client.BlockByHash(context.Background(), header.Hash()) | ||
| if err != nil { | ||
| log.Fatal(err) | ||
| } | ||
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| fmt.Println(block.Hash().Hex()) // 0xbc10defa8dda384c96a17640d84de5578804945d347072e091b4e5f390ddea7f | ||
| fmt.Println(block.Number().Uint64()) // 3477413 | ||
| fmt.Println(block.Time(), time.Unix(int64(block.Time()), 0).Format(time.DateTime)) // 1529525947 | ||
| fmt.Println(block.Nonce()) // 130524141876765836 | ||
| fmt.Println(len(block.Transactions())) // 7 | ||
| } | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,69 @@ | ||
| package main | ||
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| // 通过助记词生成私钥和账户地址，以及生成对应的keystore文件并保存到本地 | ||
| // 分层确定性（HD）钱包，主私钥可以派生无限个子私钥，子私钥可以派生无限个子地址。恢复钱包后依次创建账户即可恢复所有账户 | ||
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| import ( | ||
| "crypto/ecdsa" | ||
| "encoding/hex" | ||
| "fmt" | ||
| "log" | ||
| "path/filepath" | ||
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| "github.com/ethereum/go-ethereum/accounts/keystore" | ||
| "github.com/ethereum/go-ethereum/crypto" | ||
| "github.com/tyler-smith/go-bip32" | ||
| "github.com/tyler-smith/go-bip39" | ||
| ) | ||
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| func main() { | ||
| // 助记词存在12（128位熵、主流）、15（160）、18（192）、21（224）、24（256位熵、安全性最强）个单词 | ||
| // 生成 BIP-39 助记词 | ||
| entropy, err := bip39.NewEntropy(128) // 128位熵，生成12个单词的助记词 | ||
| if err != nil { | ||
| log.Fatal(err) | ||
| } | ||
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| mnemonic, err := bip39.NewMnemonic(entropy) | ||
| if err != nil { | ||
| log.Fatal(err) | ||
| } | ||
| fmt.Println("助记词:", mnemonic) | ||
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| // 使用助记词生成种子 | ||
| seed := bip39.NewSeed(mnemonic, "") | ||
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| // 从种子生成主私钥 | ||
| masterKey, err := bip32.NewMasterKey(seed) | ||
| if err != nil { | ||
| log.Fatal(err) | ||
| } | ||
| fmt.Println("主私钥:", masterKey.String()) | ||
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| // 从主私钥派生账户的私钥（根据BIP-44路径） | ||
| // 以太坊 BIP-44 路径: m/44'/60'/0'/0/0 | ||
| purpose, _ := masterKey.NewChildKey(bip32.FirstHardenedChild + 44) | ||
| coinType, _ := purpose.NewChildKey(bip32.FirstHardenedChild + 60) | ||
| account, _ := coinType.NewChildKey(bip32.FirstHardenedChild + 0) | ||
| change, _ := account.NewChildKey(0) | ||
| addressIndex, _ := change.NewChildKey(0) | ||
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| privateKey, err := crypto.ToECDSA(addressIndex.Key) | ||
| if err != nil { | ||
| log.Fatal(err) | ||
| } | ||
| fmt.Println("私钥:", hex.EncodeToString(crypto.FromECDSA(privateKey))) | ||
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| // 生成公钥并获取地址 | ||
| publicKey := privateKey.Public().(*ecdsa.PublicKey) | ||
| address := crypto.PubkeyToAddress(*publicKey).Hex() | ||
| fmt.Println("地址:", address) | ||
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| store := keystore.NewKeyStore("./keystore", keystore.StandardScryptN, keystore.StandardScryptP) | ||
| key, err := store.ImportECDSA(privateKey, "your-password") | ||
| if err != nil { | ||
| log.Fatal(err) | ||
| } | ||
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| fmt.Println("keystore 文件已保存:", filepath.Join("./keystore", key.Address.Hex())) | ||
| } |