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我正在尝试使用 uniswap 合约方法来简单地将 eth 交换为令牌，使用来自 metamask 钱包的 eth。Uniswap 合约方式为：

function swapExactETHForTokens(uint amountOutMin, address[] calldata path, address to, uint deadline)
  external
  payable
  returns (uint[] memory amounts);

我天真的印象是它应该看起来像这样，但我确信我遗漏了几个关键部分（例如签署交易，使用适当的回调方法），而且我找不到完整的综合示例。一个完整的工作示例应该是什么样的？

const ETHaddress = "0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2"
const DAIaddress = "0x6b175474e89094c44da98b954eedeac495271d0f"

const routerContract = new web3.eth.Contract(
                  UniswapRouterABI,
                  "0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D"
                );

routerContract.methods.swapExactETHForTokens(500,[ETHaddress,DAIaddress],myWalletAddress,someDeadline)
.send(from: myWalletAddress, value: "1000000000000")

我收到错误：

C:\rust\hello_world\src>where link.exe
C:\Program Files (x86)\Microsoft Visual Studio\2019\BuildTools\VC\Tools\MSVC\14.24.28314\bin\Hostx64\x86\link.exe
C:\rust\hello_world\src>rustc main.rs

error: linking with `link.exe` failed: exit code: 1181
  |
  = note: "C:\\Program Files (x86)\\Microsoft Visual Studio\\2019\\BuildTools\\VC\\Tools\\MSVC\\14.24.28314\\bin\\HostX64\\x86\\link.exe" "/NOLOGO" "/NXCOMPAT" "/LARGEADDRESSAWARE" "/SAFESEH" "/LIBPATH:C:\\Users\\user\\.rustup\\toolchains\\stable-i686-pc-windows-msvc\\lib\\rustlib\\i686-pc-windows-msvc\\lib" "main.main.7rcbfp3g-cgu.0.rcgu.o" "main.main.7rcbfp3g-cgu.1.rcgu.o" "main.main.7rcbfp3g-cgu.2.rcgu.o" "main.main.7rcbfp3g-cgu.3.rcgu.o" "main.main.7rcbfp3g-cgu.4.rcgu.o" "main.main.7rcbfp3g-cgu.5.rcgu.o" "/OUT:main.exe" "main.4s37gsrti678ik8u.rcgu.o" "/OPT:REF,NOICF" "/DEBUG" "/NATVIS:C:\\Users\\user\\.rustup\\toolchains\\stable-i686-pc-windows-msvc\\lib\\rustlib\\etc\\intrinsic.natvis" "/NATVIS:C:\\Users\\user\\.rustup\\toolchains\\stable-i686-pc-windows-msvc\\lib\\rustlib\\etc\\liballoc.natvis" "/NATVIS:C:\\Users\\user\\.rustup\\toolchains\\stable-i686-pc-windows-msvc\\lib\\rustlib\\etc\\libcore.natvis" "/LIBPATH:C:\\Users\\user\\.rustup\\toolchains\\stable-i686-pc-windows-msvc\\lib\\rustlib\\i686-pc-windows-msvc\\lib" "C:\\Users\\user\\.rustup\\toolchains\\stable-i686-pc-windows-msvc\\lib\\rustlib\\i686-pc-windows-msvc\\lib\\libstd-a2af7cbca70405c4.rlib" "C:\\Users\\user\\.rustup\\toolchains\\stable-i686-pc-windows-msvc\\lib\\rustlib\\i686-pc-windows-msvc\\lib\\libpanic_unwind-8f8ad41ed0b34354.rlib" "C:\\Users\\user\\.rustup\\toolchains\\stable-i686-pc-windows-msvc\\lib\\rustlib\\i686-pc-windows-msvc\\lib\\libhashbrown-3442ca764a847dfc.rlib" "C:\\Users\\user\\.rustup\\toolchains\\stable-i686-pc-windows-msvc\\lib\\rustlib\\i686-pc-windows-msvc\\lib\\librustc_std_workspace_alloc-726244614f5a8f3a.rlib" "C:\\Users\\user\\.rustup\\toolchains\\stable-i686-pc-windows-msvc\\lib\\rustlib\\i686-pc-windows-msvc\\lib\\libbacktrace-29b7599014a92286.rlib" "C:\\Users\\user\\.rustup\\toolchains\\stable-i686-pc-windows-msvc\\lib\\rustlib\\i686-pc-windows-msvc\\lib\\librustc_demangle-519f7f7caa7ec7f2.rlib" "C:\\Users\\user\\.rustup\\toolchains\\stable-i686-pc-windows-msvc\\lib\\rustlib\\i686-pc-windows-msvc\\lib\\libunwind-feba7334127a8724.rlib" "C:\\Users\\user\\.rustup\\toolchains\\stable-i686-pc-windows-msvc\\lib\\rustlib\\i686-pc-windows-msvc\\lib\\libcfg_if-6d75d87de5ddb74c.rlib" "C:\\Users\\user\\.rustup\\toolchains\\stable-i686-pc-windows-msvc\\lib\\rustlib\\i686-pc-windows-msvc\\lib\\liblibc-7dc5efd24952e919.rlib" "C:\\Users\\user\\.rustup\\toolchains\\stable-i686-pc-windows-msvc\\lib\\rustlib\\i686-pc-windows-msvc\\lib\\liballoc-b95120d391119ce4.rlib" "C:\\Users\\user\\.rustup\\toolchains\\stable-i686-pc-windows-msvc\\lib\\rustlib\\i686-pc-windows-msvc\\lib\\librustc_std_workspace_core-0e624f0b43962fb3.rlib" "C:\\Users\\user\\.rustup\\toolchains\\stable-i686-pc-windows-msvc\\lib\\rustlib\\i686-pc-windows-msvc\\lib\\libcore-58985b8c03f907a8.rlib" "C:\\Users\\user\\.rustup\\toolchains\\stable-i686-pc-windows-msvc\\lib\\rustlib\\i686-pc-windows-msvc\\lib\\libcompiler_builtins-27c1b248396c205c.rlib" "advapi32.lib" "ws2_32.lib" "userenv.lib" "msvcrt.lib"
  = note: LINK : fatal error LNK1181: cannot open input file 'C:\\Program.obj'

我查看了 Stack Overflow 建议的其他帖子以及有关此问题的一些 Google 结果。我尝试使用 …