透过eth_call 不断模拟买入 直到模拟成功 才去买入，
为什么gasPrice多高还是会慢1个区块。

然后我又改了geth源码,让他模拟的时候把txpool的交易也算进去了。他就直接比开盘的函数快2个区块。如何让我的交易紧跟着开盘的交易走。是要比开盘的交易的gasprice低一点点吗

bsc的geth
修改过的DoCall的源码在这里

func DoCall(ctx context.Context, b Backend, args TransactionArgs, blockNrOrHash rpc.BlockNumberOrHash, overrides *StateOverride, blockOverrides *BlockOverrides, timeout time.Duration, globalGasCap uint64) (*core.ExecutionResult, error) {
	defer func(start time.Time) { log.Debug("Executing EVM call finished", "runtime", time.Since(start)) }(time.Now())

	state, header, err := b.StateAndHeaderByNumberOrHash(ctx, blockNrOrHash)
	if state == nil || err != nil {
		return nil, err
	}

	pendingTxs, err := b.GetPoolTransactions()
	if err != nil {
		return nil, err
	}

	tmpStatedb := state.Copy()
	for _, tx := range pendingTxs {
		if tx.To() == args.To {
			msg, err := core.TransactionToMessage(tx, types.LatestSigner(b.ChainConfig()), header.BaseFee)
			if err != nil {
				return nil, err
			}

			txCtx := core.NewEVMTxContext(msg)
			context := core.NewEVMBlockContext(header, NewChainContext(ctx, b), nil)
			evm := vm.NewEVM(context, txCtx, tmpStatedb, b.ChainConfig(), vm.Config{NoBaseFee: true})

			_, err = core.ApplyMessage(evm, msg, new(core.GasPool))
			if err != nil {
				return nil, err
			}
		} else {
			continue
		}

	}
	return doCall(ctx, b, args, tmpStatedb, header, overrides, blockOverrides, timeout, globalGasCap)
}

python中大概的实现就是:

def simulate():
    eth_call(xxxx)
  
def main():
    while 1:
        if simulate == True:
            买入