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1. window.location.search

window.location.search ÊôÐÔ·µ»Ø URL ÖÐÎʺŠ(?) Ö®ºóµÄ²¿·Ö£¬¼´ÅÌÎÊ×Ö·û´®¡£

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const url = "https://example.com/search?q=apple";
const queryParams = url.split("?")[1]; // "q=apple"
console.log(queryParams);

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2. URLSearchParams

URLSearchParams ¹¤¾ßÊÇÁíÒ»¸ö»ñÈ¡ URL ²ÎÊýµÄÓÐÓÃÒªÁì¡£ËüÌṩÁËÔ½·¢Àû±ãµÄÒªÁìÀ´´¦ÀíÅÌÎÊ×Ö·û´®¡£

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const url = new URL("https://example.com/search?q=apple");
const queryParams = new URLSearchParams(url.searchParams);
console.log(queryParams.get("q")); // "apple"

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3. ÕýÔò±í´ïʽ

ÕýÔò±í´ïʽҲ¿ÉÒÔÓÃÀ´ÆÊÎö URL ²ÎÊý£¬µ«ÕâÖÖÒªÁìÏà¶ÔÖØ´ó¡£

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const url = "https://example.com/search?q=apple";
const regex = /q=(.*)/;
const queryParams = url.match(regex);
console.log(queryParams[1]); // "apple"

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