錯誤編碼參數（混音）

我們的契約如下：

pragma solidity 0.4.23; 

   contract RFID {

       struct StateStruct {
           bytes32 description;
           mapping(bytes32 => bytes32) sub_state;
       }

       struct ObjectStruct {
           StateStruct state;
           address owner; 
           bool isObject;
       }

       mapping(bytes32 => ObjectStruct) objectStructs;
       bytes32[] public objectList;
       //uint256 public number_of_sub_states = 3;

       event LogNewObject(address sender, bytes32 id, bytes32 sub_states_types, bytes32 sub_states_values, address owner);
       event LogChangeObjectState(address sender, bytes32 uid, bytes32 newState);
       event LogChangeObjectOwner(address sender, bytes32 uid, address newOwner);

       function isObject(bytes32 _id) public view returns(bool isIndeed) {
           return objectStructs[_id].isObject;
       }

       function getObjectCount() public view returns(uint count) {
           return objectList.length;
       }

       /*function setArraySize(uint256 _number_of_sub_states) public {

           number_of_sub_states = _number_of_sub_states;

       }

       function getArraySize() view public returns (uint256) {
          return number_of_sub_states;
       }*/

       function newObject(bytes32 _id, uint256 number_of_sub_states, bytes32[10] sub_states_types, bytes32[10] sub_states_values, address _owner) public returns(bool success) {
           require(!isObject(_id));

           uint256 counter=0;
           for(counter; counter < number_of_sub_states; counter++) {

               objectStructs[_id].state.sub_state[sub_states_types[counter]] = sub_states_values[counter];

               emit LogNewObject(msg.sender, _id, sub_states_types[counter], bytes32(sub_states_values[counter]), _owner);

           }

           objectStructs[_id].owner = _owner;
           objectStructs[_id].isObject = true;

           objectList.push(_id);

           return true;
       }

       function changeObjectState(bytes32 _id, bytes32 _newState) public returns(bool success) {
           require(isObject(_id));
           //objectStructs[_id].location = _newState;
           objectStructs[_id].state = StateStruct(_newState);
           emit LogChangeObjectState(msg.sender, _id, _newState);
           return true;
       }

       function changeObjectOwner(bytes32 _uid, address _newOwner) public returns(bool success) {
           require(isObject(_uid));
           objectStructs[_uid].owner = _newOwner;
           emit LogChangeObjectOwner(msg.sender, _uid, _newOwner);
           return true;
       }

   }

當我呼叫function newObjectremix 時，我收到以下錯誤：

使用相關文本框在 remix 中呼叫 newObject ：100, 3, [bytes32("location"),bytes32("price"),bytes32("sold")], [bytes32("Paris"),bytes32("50"),bytes32("yes")], address(0xE07b6e5a2026CC916A4E2Beb03767ae0ED6af773)

錯誤 ：error encoding arguments syntax error unexpected token b in JSON at position 12.

這個錯誤的原因是什麼？

重要提示：我編輯了關於使用者 Jesse Busman 回答的問題。

我發現您的函式呼叫存在四個潛在問題：

1. 您應該[]對數組文字使用方括號而不是花括號{}：

newObject(100, 3, ["location","price","sold"], ["Paris","50","yes"], '0xE07b6e5a2026CC916A4E2Beb03767ae0ED6af773');

2. 該newObject函式將動態大小的數組作為參數。來自 Solidity 文件：

請注意，目前，固定大小的記憶體數組不能分配給動態大小的記憶體數組，即以下是不可能的：

// This will not compile.

pragma solidity ^0.4.0;

contract C {
    function f() public {
        // The next line creates a type error because uint[3] memory
        // cannot be converted to uint[] memory.
        uint[] x = [uint(1), 3, 4];
    }
}

一種解決方案是將函式簽名更改為newObject僅接受大小為 3 的數組：

..., uint256 number_of_sub_states, bytes32[3] sub_states_types, bytes32[3] sub_states_values, ...

3. 字元串的數組文字不能隱式轉換為bytes32. 您可以手動轉換函式呼叫中的值：

newObject(100, 3, [bytes32("location"),bytes32("price"),bytes32("sold")], [bytes32("Paris"),bytes32("50"),bytes32("yes")], '0xE07b6e5a2026CC916A4E2Beb03767ae0ED6af773');

4. Solidity 中的地址被寫入為轉換為 address. 所以你應該這樣寫：address(0xE07b6e5a2026CC916A4E2Beb03767ae0ED6af773)

而不是這個：'0xE07b6e5a2026CC916A4E2Beb03767ae0ED6af773'

我必須以以下格式在 remix 中呼叫 newObject 函式：

40,3,["location","price","sold","","","","","","",""],["Paris","50","No","","","","","","",""], 0xE07b6e5a2026CC916A4E2Beb03767ae0ED6af773

現在，結果是真的。

引用自：https://ethereum.stackexchange.com/questions/47538