js数字转大写金额

code：https://www.cnblogs.com/myprogramer/p/11528131.html

function changeNumMoneyToChinese(money) {
            var cnNums = new Array("零", "壹", "贰", "叁", "肆", "伍", "陆", "柒", "捌", "玖"); //汉字的数字
            var cnIntRadice = new Array("", "拾", "佰", "仟"); //基本单位
            var cnIntUnits = new Array("", "万", "亿", "兆"); //对应整数部分扩展单位
            var cnDecUnits = new Array("角", "分", "毫", "厘"); //对应小数部分单位
            var cnInteger = "整"; //整数金额时后面跟的字符
            var cnIntLast = "元"; //整型完以后的单位
            var maxNum = 999999999999999.9999; //最大处理的数字
            var IntegerNum; //金额整数部分
            var DecimalNum; //金额小数部分
            var ChineseStr = ""; //输出的中文金额字符串
            var parts; //分离金额后用的数组，预定义
            var Symbol = "";//正负值标记
            if (money == "") {
                return "";
            }

            money = parseFloat(money);
            if (money >= maxNum) {
                alert('超出最大处理数字');
                return "";
            }
            if (money == 0) {
                ChineseStr = cnNums[0] + cnIntLast + cnInteger;
                return ChineseStr;
            }
            if (money < 0) {
                money = -money;
                Symbol = "负 ";
            }
            money = money.toString(); //转换为字符串
            if (money.indexOf(".") == -1) {
                IntegerNum = money;
                DecimalNum = '';
            } else {
                parts = money.split(".");
                IntegerNum = parts[0];
                DecimalNum = parts[1].substr(0, 4);
            }
            if (parseInt(IntegerNum, 10) > 0) { //获取整型部分转换
                var zeroCount = 0;
                var IntLen = IntegerNum.length;
                for (var i = 0; i < IntLen; i++) {
                    var n = IntegerNum.substr(i, 1);
                    var p = IntLen - i - 1;
                    var q = p / 4;
                    var m = p % 4;
                    if (n == "0") {
                        zeroCount++;
                    }
                    else {
                        if (zeroCount > 0) {
                            ChineseStr += cnNums[0];
                        }
                        zeroCount = 0; //归零
                        ChineseStr += cnNums[parseInt(n)] + cnIntRadice[m];
                    }
                    if (m == 0 && zeroCount < 4) {
                        ChineseStr += cnIntUnits[q];
                    }
                }
                ChineseStr += cnIntLast;
                //整型部分处理完毕
            }
            if (DecimalNum != '') { //小数部分
                var decLen = DecimalNum.length;
                for (var i = 0; i < decLen; i++) {
                    var n = DecimalNum.substr(i, 1);
                    if (n != '0') {
                        ChineseStr += cnNums[Number(n)] + cnDecUnits[i];
                    }
                }
            }
            if (ChineseStr == '') {
                ChineseStr += cnNums[0] + cnIntLast + cnInteger;
            } else if (DecimalNum == '') {
                ChineseStr += cnInteger;
            }
            ChineseStr = Symbol + ChineseStr;

            return ChineseStr;
        }