ERC-20 代币转移问题：执行恢复：ERC20：从零地址转移

Question

最近我一直在尝试学习有关智能合约的知识，但是当我试图了解代币转移的工作原理时，我遇到了这个问题。|| 执行恢复：ERC20：从零地址转移 || （罗普斯滕网络）编码：import (    "context"    "crypto/ecdsa"    "fmt"    "github.com/ethereum/go-ethereum"    "github.com/ethereum/go-ethereum/common"    "github.com/ethereum/go-ethereum/common/hexutil"    "github.com/ethereum/go-ethereum/core/types"    "github.com/ethereum/go-ethereum/crypto"    "github.com/ethereum/go-ethereum/ethclient"    "golang.org/x/crypto/sha3"    "log"    "math/big")func main() {    client, err := ethclient.Dial("https://ropsten.infura.io/v3")    if err != nil {        panic(err)    }    chainID, _ := client.NetworkID(context.Background())    privateKey, err := crypto.HexToECDSA("280a5fb7d2eef8c7956f4e6754c82a46f30496e43f50be4c8a457ef4e45fb1f4")    if err != nil {        log.Fatal(err)    }    publicKey := privateKey.Public()    publicKeyECDSA, ok :=publicKey.(*ecdsa.PublicKey)    if !ok {        log.Fatal("cannot assert type: publicKey is not of type *ecdsa.PublicKey")    }    fromAddress := crypto.PubkeyToAddress(*publicKeyECDSA)    nonce, err := client.PendingNonceAt(context.Background(), fromAddress)    if err != nil {        log.Fatal(err)    }    value := big.NewInt(0)    toAddress := common.HexToAddress("0x0cFd37C2A1c9d0B8833fFE5a772003a350B5Be3f")    tokenAddress := common.HexToAddress("0x4f1c3F4D89826f27204769Af1617540c219E3A62")    transferFnSignature := []byte("transfer(address,uint256)")    hash := sha3.NewLegacyKeccak256()    hash.Write(transferFnSignature)    methodID := hash.Sum(nil)[:4]    fmt.Println(hexutil.Encode(methodID))}代币地址是我的合约地址，fromAddress 是我持有 10000 个代币的钱包，toAddress 是普通钱包。我在这里想念什么？

Answer 1

显然，问题出在gasLimit. 我将其更改gasLimit为：

gasLimit := uint64(200000)

它奏效了。