function getQueryParamByKey(paramName) {
  var url = document.location.toString()
  console.log(url)
  // 如果url中有特殊字符则需要进行一下解码
  url = decodeURI(url)
  var arrObj = url.split("?");
  console.log(arrObj)
  if (arrObj.length > 1) {
    var arrPara = arrObj[1].split("&");
    var arr;
    for (var i = 0; i < arrPara.length; i++) {
      arr = arrPara[i].split("=");
      if (arr != null && arr[0] == paramName) {
        console.log(decodeURIComponent(arr[1]))
        return decodeURIComponent(arr[1]);
      }
    }
    return "";
  } else {
    return "";
  }
}


var pages = {
  '1': {
    size: [586,808],
    total:72,
    name:'',
    type:'png'
  },
  '2': {
    size: [1687,2551],
    total:32,
    name:'',
    type:'jpg'
  }
 

 
}