我是以太坊开发的新手，我正在编写一个简单的脚本来使用 Pancakeswap 执行交换。在我建立交易并计算交易成本之前，一切似乎都运行良好。我正在使用 UniswapRouterV02 abi 创建我的 Pancakeswap 合约。编码：
const init = async () => {
const [WBNB, BUSD] = await Promise.all(
[addresses.WBNB, addresses.BUSD].map(tokenAddress => (
new Token(
ChainId.MAINNET,
tokenAddress,
18
)
)));
const pair = await Fetcher.fetchPairData(WBNB, BUSD, provider)
const route = await new Route([pair], WBNB)
const trade = await new Trade(route, new TokenAmount(WBNB, tradeAmount), TradeType.EXACT_INPUT)
const executionPrice = trade.executionPrice.toSignificant(12)
// Correct prices; everything seems correct up until here
const slippageTolerance = new Percent('50', '10000')
const amountOutMin = trade.minimumAmountOut(slippageTolerance).raw
const …