2019-05-22 截取url中参数的方式

方式一：字符串截取成数组的方式

let url = window.location.href

url = url.substring(url.indexOf('?') + 1)

arr = url.split('&')

for (let i = 0; i < arr.length; i++) {

      this.lastParams[arr[i].substring(0, arr[i].indexOf('='))] = arr[i].substring(arr[i].indexOf('=') + 1)

    }

方法二：正则表达式的方式

let url = 'https://www.baidu.com/s?sysId=111111&wd=substr&abb=222222'

  let localUrl = url.substr(url.indexOf('?'))

  console.log(localUrl)

  debugger

  var sysId =  getQuertString('abb',localUrl)

  console.log(sysId)

function getQuertString (name, url) {

  let reg = new RegExp('(^|&)' + name + '=([^&]*)(&|$)', 'i')

  let result = url.substr(1).match(reg)

  if (result !== null) {

    return unescape(result[2])

  }

  return null

}