<p>我正在嘗試使用一個<code>Record<TableId, TableState></code>對象，其中<code>type TableId = string;</code>。然而，當我在透過<code>setTableStateMap(map)</code>設定鍵/值對之後列印記錄物件的內容時...我得到的是物件<code>{id: {…}} </code>，而不是我傳遞給'id'變數的值。 </p> <pre class="brush:php;toolbar:false;">// App.tsx---------------------------- ----------- React.useEffect(() => { setCallback((id: TableId, tableState: TableState) => { const map: Record<TableId, TableState> = { id: tableState }; setTableStateMap(map); }); // Table Component------------------------------- type TableId = string; type Callback = (id: TableId, state: TableState) => void; let callback: Callback; export function setCallback(callbackInput: Callback) { callback = callbackInput; } let stateMap: Record<TableId, TableState> = {}; export function setTableStateMap(map: Record<TableId, TableState>) { stateMap = map; } interface TableProps { id?: TableId; } export const Table: React.FC<TableProps> = ({ id, }) => { let tableState: TableState | undefined; if (id) { tableState = stateMap[id]; // stateMap的鍵設定為'id'，而不是變數id的值 // {id: {…}} } else { tableState = undefined; } };</pre> <p><br /></p>

// App.tsx---------------------------------------
React.useEffect(() => {
    setCallback((id: TableId, tableState: TableState) => {
        const map: Record<TableId, TableState> = { [id]: tableState }; // 在这里使用计算属性名
        setTableStateMap(map);
    });

// Table Component-------------------------------
// ... your other imports and code

export const Table: React.FC<TableProps> = ({
    id,
}) => {
    let tableState: TableState | undefined;
    if (id) {
        tableState = stateMap[id]; // 现在这将正确地使用动态 id 访问值
    } else {
        tableState = undefined;
    }
// ... rest of your component code
};