~~~ function createRequest(maxConcurrent) { let activeRequests = 0; const requestQueue = []; function processQueue() { if (activeRequests < maxConcurrent && requestQueue.length > 0) { const { url, params, resolve } = requestQueue.shift(); activeRequests++; // 發起請求的邏輯，這里使用 setTimeout 模擬異步請求 setTimeout(() => { makeRequest(url, params) .then((result) => { resolve(result); }) .finally(() => { activeRequests--; processQueue(); }); }, 0); } } function myRequest(url, params) { return new Promise((resolve) => { requestQueue.push({ url, params, resolve }); processQueue(); }); } return myRequest; } // 模擬請求函數 function makeRequest(url, params) { return new Promise((resolve) => { // 這里可以根據實際情況發起請求 // 這里使用 setTimeout 模擬異步請求 setTimeout(() => { resolve(`Result for ${url} with params ${params}`); }, 1000); // 延遲1秒模擬異步請求的響應時間 }); } // 示例使用： const urlList = ['https://example.com/api/1', 'https://example.com/api/2', 'https://example.com/api/3']; const myRequest = createRequest(2); // 最大并發量為2 Promise.all( urlList.map((url) => { const params = { /* 根據需要傳遞的參數 */ }; return myRequest(url, params); }) ) .then((results) => { console.log(results); // 打印所有請求的結果 }) .catch((error) => { console.error(error); // 處理錯誤 }); ~~~