js阿拉伯数字转中文大写 方法重多

方法一 


 

 function DX(n) {
        if (!/^(0|[1-9]\d*)(\.\d+)?$/.test(n))
            return "数据非法";
        var unit = "千百拾亿千百拾万千百拾元角分", str = "";
            n += "00";
        var p = n.indexOf('.');
        if (p >= 0)
            n = n.substring(0, p) + n.substr(p+1, 2);
            unit = unit.substr(unit.length - n.length);
        for (var i=0; i < n.length; i++)
            str += '零壹贰叁肆伍陆柒捌玖'.charAt(n.charAt(i)) + unit.charAt(i);
        return str.replace(/零(千|百|拾|角)/g, "零").replace(/(零)+/g, "零").replace(/零(万|亿|元)/g, "$1").replace(/(亿)万|壹(拾)/g, "$1$2").replace(/^元零?|零分/g, "").replace(/元$/g, "元整");
}

 

 方法2

<script type="text/javascript">

 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

 

具体转换使用

 var k = new change((i+1).toString());