Solidity
如何從 SmartContract 呼叫函式?
我部署了一個具有以下功能的智能合約。
function getTime() public view returns (uint){ return now; }
但是,當我嘗試像這樣呼叫函式時。(“einstance”是契約的實例):
tme=einstance.functions.getTime() tme
我收到:
<Function getTime() bound to ()>
我怎樣才能從中檢索時間?
// Web3 v1.2.6 const Web3 = require('web3'); const web3 = new Web3(new Web3.providers.HttpProvider('http://localhost:8545')); const contractJSON = require('/path/to/build/contracts/Contract.json'); const contractInstance = new web3.eth.Contract(contractJSON.abi, 'CONTRACT_DEPLOYED_ADDRESS'); async function getTimeFromContract() { const time = await contractInstance.methods.getTime().call(); console.log(`Time returned from the contract: ${time}`); }
試試
tme=einstance.call().getTime()
。