Solidity error: Unexpected token h in JSON at position

Question

嘿，我正在开发一个简单的 solidity 智能合约，但我遇到了一个问题。每次我尝试运行 setWord 函数时，我都会收到错误 "transact to HelloWorldContract.setWord errored: Error encoding arguments: SyntaxError: Unexpected token h in JSON at position 2" 可能是什么问题？

pragma solidity ^0.4.0;
contract HelloWorldContract{
string word = "Hello World";
address issuer;
function HelloWorldContract(){
    issuer = msg.sender;    
}
function getWord() constant returns(string) {
    return word;
}
function setWord(string newWord) returns(string) {
    if(issuer != msg.sender){
        return "this is not the creator!";
    }
    else{
     word = newWord;
     return "this is the creator!";
    }
}
}

Answer 1

您需要在双引号中传递参数字符串 - "helloWorld" 而不仅仅是 helloWorld.

Answer 2

我猜你正在使用 Remix IDE.

不要忘记在您传递的参数周围添加双引号：

Solidity error: Unexpected token h in JSON at position

Solidity error: Unexpected token h in JSON at position

javascript

json

ethereum

solidity