1、获取地址栏url参数方法

function getQueryString(field) {
  let searchStr = window.location.search
  if (!field || !searchStr) return null
  let reg = new RegExp('(^|&)' + field + '=([^&]*)(&|$)')
  let res = searchStr.substring(1).match(reg)
  return res !== null ? decodeURIComponent(res[2]) : null
}

栗子：https://jiangdesheng.com/aa/bc?token=123456&pid=85

使用getQueryString("token")就能得到123456

2、解析url参数为Object

/**
 * 解析url参数
 * @example ?id=12345&a=b
 * @return Object {id:12345,a:b}
 */
function urlParse(url) {
  let obj = {}
  let reg = /[?&][^?&]+=[^?&]+/g
  let arr = url.match(reg)
  if (arr) {
    arr.forEach((item) => {
      let tempArr = item.substring(1).split('=')
      let key = decodeURIComponent(tempArr[0])
      let val = decodeURIComponent(tempArr.splice(1).join('='))
      obj[key] = val
    })
  }
  return obj
}