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CarKing001

CarKing001 - 车王二手车残值率

  1. // ==UserScript==
  2. // @name        CarKing001
  3. // @namespace   https://greasyfork.org/users/11909
  4. // @description CarKing001 - 车王二手车残值率
  5. // @include     http://www.carking001.com/ershouche/*
  6. // @version     2016.03.08.01
  7. // @author      OscarKoo
  8. // @grant       none
  9. // ==/UserScript==
  10.  
  11. ;(function($) {
  12.   var getKM = function(text) {
  13.     var km = text.substr(0, text.length - 2);
  14.     var index = km.indexOf('万');
  15.     return parseFloat(index >= 0 ? (km.substr(0, km.length - 1) * 10000) : km);
  16.   };
  17.  
  18.   var getMonths = function(text) {
  19.     if (!text || text == '-') return 1;
  20.     var dates = text.split('/')
  21.     var now = new Date();
  22.     return (now.getFullYear() - parseInt(dates[0], 10)) * 12 + (now.getMonth() + 1 - parseInt(dates[1], 10));
  23.   };
  24.  
  25.   var getNewPrice = function(text) {
  26.     return parseFloat(text.match(/￥(\d+\.\d*)万/)[1]);
  27.   };
  28.  
  29.   var getOriginalPrice = function(text) {
  30.     return parseFloat(text.match(/新车价：(\d+\.*\d*)万/)[1]);
  31.   };
  32.  
  33.  
  34.   var calculate = function() {
  35.     $('ul.carList>li>.fl').each(function() {
  36.       try {
  37.         var km, months, newPrice, originalPrice, p;
  38.         $(this).children('p').filter(function(index) {
  39.           return index == 0 || index == 1;
  40.         }).each(function(index) {
  41.           switch (index) {
  42.             case 0:
  43.               var span = $(this).children('span');
  44.               km = getKM(span.eq(0).text());
  45.               months = getMonths(span.eq(1).text());
  46.               break;
  47.             case 1:
  48.               p = $(this);
  49.               var t = p.text();
  50.               newPrice = getNewPrice(t);
  51.               originalPrice = getOriginalPrice(t)
  52.               break;
  53.           }
  54.         });
  55.         var priceDiff = originalPrice - newPrice;
  56.         var rate = priceDiff / originalPrice * 100;
  57.         p.append('<span style="border-left: 1px solid #ccc;">&nbsp;&nbsp;差价：' + priceDiff.toFixed(4) + '万元；跌幅：' + rate.toFixed(2) + '%；年限：' + months + '月；折合：' + (rate / (months / 12)).toFixed(2) + '%/年；' + (priceDiff / months * 10000).toFixed(2) + '元/月；' + (priceDiff / km * 10000).toFixed(2) + '元/公里</span>');
  58.       } catch (e) {
  59.         console.log(e);
  60.       }
  61.     });
  62.   };
  63.   calculate();
  64. })($);