solidity中函數(shù)的參數(shù)為bytes32的函數(shù)調(diào)用

function constructor(bytes32[] candidateNames) public {
    candidateList = candidateNames;
}

在部署合約如果想傳遞['Rama', 'Nick', 'Jose']需要將這些字符串轉(zhuǎn)換為Ascii潮罪。如果通過js中部署合約則在傳遞函數(shù)是通過web3.fromAscii('Rama')將字符串轉(zhuǎn)換為對應(yīng)的Ascii赁豆。

let VotingContract = web3.eth.contract(abiDefinition);
let byteCode = compiledCode.contracts[':Voting'].bytecode;

//調(diào)用VotingContract對象的new()方法來將投票合約部署到區(qū)塊鏈。new()方法參數(shù)列表應(yīng)當(dāng)與合約的 構(gòu)造函數(shù)要求相一致损拢。對于投票合約而言，new()方法的第一個參數(shù)是候選人名單婚肆。
VotingContract.new([web3.fromAscii('Rama'),web3.fromAscii('Nick'),web3.fromAscii('Jose')],{data: byteCode, from: web3.eth.accounts[0], gas: 4700000}, function(e, contract){
    if(!e){
        if(!contract.address){
            console.log("Contract transaction send: Transaction Hash: "+contract.transactionHash+" waiting to be mined...");
        }else{
            console.log("Contract mined! Address: "+contract.address);
            console.log(contract);
            let contractInstance = VotingContract.at(contract.address);
            contractInstance.voteForCandidate(web3.fromAscii('Rama'), {from: web3.eth.accounts[0]});
            contractInstance.voteForCandidate(web3.fromAscii('Rama'), {from: web3.eth.accounts[0]});
            contractInstance.voteForCandidate(web3.fromAscii('Rama'), {from: web3.eth.accounts[0]});
            contractInstance.voteForCandidate(web3.fromAscii('Nick'), {from: web3.eth.accounts[0]});
            contractInstance.voteForCandidate(web3.fromAscii('Jose'), {from: web3.eth.accounts[0]});
            contractInstance.voteForCandidate(web3.fromAscii('Jose'), {from: web3.eth.accounts[0]});
            console.log("--------------finish----------------");
            let RamaVote=contractInstance.totalVotesFor.call(web3.fromAscii('Rama'));
            let NickVote=contractInstance.totalVotesFor.call(web3.fromAscii('Nick'));
            let JoseVote=contractInstance.totalVotesFor.call(web3.fromAscii('Jose'));
            console.log("Rama's vote is "+RamaVote);
            console.log("Nick's vote is "+NickVote);
            console.log("Jose's vote is "+JoseVote);
        }
    }else{
        console.log(e)
    }
});