js url encode解码

let str = "Hello World! 你好，世界！";
let encodedStr = encodeURIComponent(str);
console.log(encodedStr); // 输出: Hello%20World!%20%E4%BD%A0%E5%A5%BD%EF%BC%8C%E4%B8%96%E7%95%8C%EF%BC%81

let encodedStr = "Hello%20World!%20%E4%BD%A0%E5%A5%BD%EF%BC%8C%E4%B8%96%E7%95%8C%EF%BC%81";
let decodedStr = decodeURIComponent(encodedStr);
console.log(decodedStr); // 输出: Hello World! 你好，世界！

function safeDecodeURIComponent(str) {
    try {
        return decodeURIComponent(str);
    } catch (e) {
        console.error("解码失败:", e);
        return null;
    }
}

let encodedStr = "Hello%20World!%20%E4%BD%A0%E5%A5%BD%EF%BC%8C%E4%B8%96%E7%95%8C%EF%BC%81";
let decodedStr = safeDecodeURIComponent(encodedStr);
if (decodedStr) {
    console.log(decodedStr); // 输出: Hello World! 你好，世界！
}