您可以通过以下函数实现：

function getParameter(parameterName){
        let paramsIndex = document.URL.indexOf("?");
        let params="";
        if(paramsIndex>0)
            params=document.URL.substring(paramsIndex+1, document.URL.length).split("&");
        let result = [];
        for(let i=0;i<params.length;i++)
        {
            console.warn(params[i].split("=")[0].toString()+ "," + params[i].split("=")[1].toString());
            var obj = {"key":params[i].split("=")[0].toString(),"value":params[i].split("=")[1].toString()};
            result.push(obj);
        }
        return passedValue = result.find(x=>x.key==parameterName).value;
    }

现在您可以使用getParameter（“parameterName”）获取参数值

简化版，已测试

function get(name){
    var r = /[?&]([^=#]+)=([^&#]*)/g,p={},match;
    while(match = r.exec(window.location)) p[match[1]] = match[2];
    return p[name];
}

用法：

var parameter=获取['parameter']

我很早以前就发现了这一点，非常简单：

function getUrlVars() {
    var vars = {};
    var parts = window.location.href.replace(/[?&]+([^=&]+)=([^&]*)/gi,    
    function(m,key,value) {
      vars[key] = value;
    });
    return vars;
  }

然后这样称呼：

var fType = getUrlVars()["type"];

您可以运行此函数

    function getUrlVars()
    {
        var vars = [], hash;
        var hashes = window.location.href.slice(window.location.href.indexOf('?') + 1).split('&');
        for(var i = 0; i < hashes.length; i++)
        {
            hash = hashes[i].split('=');
            vars.push(hash[0]);
            vars[hash[0]] = hash[1];
        }
        return vars;
    }

    var source = getUrlVars()["lm_supplier"];
    var el = source.toString();
    var result= decodeURI(el);

console.log(result)

该函数从url获取所需内容，var source=getUrlVars（）[“从url中输入您想要的内容”]；

您可以通过以下函数实现：

function getParameter(parameterName){
        let paramsIndex = document.URL.indexOf("?");
        let params="";
        if(paramsIndex>0)
            params=document.URL.substring(paramsIndex+1, document.URL.length).split("&");
        let result = [];
        for(let i=0;i<params.length;i++)
        {
            console.warn(params[i].split("=")[0].toString()+ "," + params[i].split("=")[1].toString());
            var obj = {"key":params[i].split("=")[0].toString(),"value":params[i].split("=")[1].toString()};
            result.push(obj);
        }
        return passedValue = result.find(x=>x.key==parameterName).value;
    }

现在您可以使用getParameter（“parameterName”）获取参数值

您可以添加一个输入框，然后要求用户将值复制到其中……这非常简单：

<h1>Hey User! Can you please copy the value out of the location bar where it says like, &m=2? Thanks! And then, if you could...paste it in the box below and click the Done button?</h1>
<input type='text' id='the-url-value' />
<input type='button' value='This is the Done button. Click here after you do all that other stuff I wrote.' />

<script>
//...read the value on click

好吧，但说真的。。。我发现了这段代码，它似乎很有用：

http://www.developerdrive.com/2013/08/turning-the-querystring-into-a-json-object-using-javascript/

function queryToJSON() {
    var pairs = location.search.slice(1).split('&');

    var result = {};
    pairs.forEach(function(pair) {
        pair = pair.split('=');
        result[pair[0]] = decodeURIComponent(pair[1] || '');
    });

    return JSON.parse(JSON.stringify(result));
}

var query = queryToJSON();