实例方法

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const getQueryString = name => {
    var result = window.location.search.match(new RegExp("[\?\&]" + name + "=([^\&]+)", "i"));
    if (result == null || result.length < 1) {
        return "";
    }
    return result[1];
}

JSON.stringify({
    asd: '123',
    qwe: '789',
    zxc: '356'
 }).replace(/:/g, "=").replace(/"/g, "").replace(/,/g, "&").match(/\{([^)]*)\}/)[1]
 // 'asd=123&qwe=789&zxc=356'