微信扫码跳转小程序并传参

location /test{
    alias /usr/local/nginx/html/test/;
  }

onLoad(option) {
        console.log('onload>>>>>>>>>>>>>>index')
        if(option.q){
            //微信扫描扫描二维码进来的
            let url = decodeURIComponent(option.q)
            let obj = this.getUrlParam(url)
            console.log('从微信扫码过来obj')
            console.log(obj.aa)
 }
 getUrlParam(url){
            let params = url.split("?")[1].split("&");
            let obj = {};
            params.map(v => (obj[v.split("=")[0]] = v.split("=")[1]));
            return obj
 },