JavaScript实现把数字转换成中文

var _change = {           ary0:["零", "一", "二", "三", "四", "五", "六", "七", "八", "九"],           ary1:["", "十", "百", "千"],           ary2:["", "万", "亿", "兆"],           init:function (name) {               this.name = name;           },           strrev:function () {               var ary = []               for (var i = this.name.length; i >= 0; i--) {                   ary.push(this.name[i])               }               return ary.join("");           }, //倒转字符串。           pri_ary:function () {               var $this = this               var ary = this.strrev();               var zero = ""               var newary = ""               var i4 = -1               for (var i = 0; i < ary.length; i++) {                   if (i % 4 == 0) { //首先判断万级单位，每隔四个字符就让万级单位数组索引号递增                       i4++;                       newary = this.ary2[i4] + newary; //将万级单位存入该字符的读法中去，它肯定是放在当前字符读法的末尾，所以首先将它叠加入$r中，                       zero = ""; //在万级单位位置的“0”肯定是不用的读的，所以设置零的读法为空                    }                   //关于0的处理与判断。                   if (ary[i] == '0') { //如果读出的字符是“0”，执行如下判断这个“0”是否读作“零”                       switch (i % 4) {                           case 0:                               break;                           //如果位置索引能被4整除，表示它所处位置是万级单位位置，这个位置的0的读法在前面就已经设置好了，所以这里直接跳过                           case 1:                           case 2:                           case 3:                               if (ary[i - 1] != '0') {                                   zero = "零"                               }                               ; //如果不被4整除，那么都执行这段判断代码：如果它的下一位数字（针对当前字符串来说是上一个字符，因为之前执行了反转）也是0，那么跳过，否则读作“零”                               break;                        }                        newary = zero + newary;                       zero = '';                   }                   else { //如果不是“0”                       newary = this.ary0[parseInt(ary[i])] + this.ary1[i % 4] + newary; //就将该当字符转换成数值型,并作为数组ary0的索引号,以得到与之对应的中文读法，其后再跟上它的的一级单位（空、十、百还是千）最后再加上前面已存入的读法内容。                   }                }               if (newary.indexOf("零") == 0) {                   newary = newary.substr(1)               }//处理前面的0               return newary;           }       }        //创建class类       function change() {           this.init.apply(this, arguments);       }       change.prototype = _change //创建实例       var k = new change("00102040");       alert(k.pri_ary())