js获取url中文参数乱码

function getQueryParams() {
    const params = new URLSearchParams(window.location.search);
    const result = {};
    for (const [key, value] of params.entries()) {
        result[key] = decodeURIComponent(value);
    }
    return result;
}

// 示例URL: http://example.com/?name=张三&age=25
const params = getQueryParams();
console.log(params); // 输出: { name: '张三', age: '25' }

function getQueryParam(name) {
    const urlParams = new URLSearchParams(window.location.search);
    const encodedValue = urlParams.get(name);
    return encodedValue ? decodeURIComponent(encodedValue) : null;
}

// 示例URL: http://example.com/?name=张三&age=25
const name = getQueryParam('name');
const age = getQueryParam('age');
console.log(name); // 输出: 张三
console.log(age);  // 输出: 25

const name = '张三';
const encodedName = encodeURIComponent(name);
const url = `http://example.com/?name=${encodedName}`;

console.log(url); // 输出: http://example.com/?name=%E5%BC%A0%E4%B8%89