获取URL参数

    function queryParam(url = location.href) {
        url = url.substring(url.indexOf('?') + 1)
        const params = {}
        url.split('&').forEach(v => {
          const temp = v.split('=')
          if (temp.length === 2) {
            params[temp[0]] = temp[1]
          }
        })
        return params
      }