js实现金额小写转大写 

  1 function convertCurrency(currencyDigits) {
  2     var MAXIMUM_NUMBER = 1000000000000.00;
  3 
  4     var CN_ZERO = "零";
  5     var CN_ONE = "壹";
  6     var CN_TWO = "贰";
  7     var CN_THREE = "叁";
  8     var CN_FOUR = "肆";
  9     var CN_FIVE = "伍";
 10     var CN_SIX = "陆";
 11     var CN_SEVEN = "柒";
 12     var CN_EIGHT = "捌";
 13     var CN_NINE = "玖";
 14     var CN_TEN = "拾";
 15     var CN_HUNDRED = "佰";
 16     var CN_THOUSAND = "仟";
 17     var CN_TEN_THOUSAND = "万";
 18     var CN_HUNDRED_MILLION = "亿";
 19     var CN_SYMBOL = "人民币";
 20     var CN_DOLLAR = "元";
 21     var CN_TEN_CENT = "角";
 22     var CN_CENT = "分";
 23     var CN_INTEGER = "整";
 24 
 25     var integral;    // integral part
 26     var decimal;     // decimal part
 27     var outputCharacters = "";    // result.
 28     var parts;
 29     var digits, radices, bigRadices, decimals;
 30     var zeroCount;
 31     var i, p, d;
 32     var quotient, modulus;
 33 
 34     if (currencyDigits != null) {
 35         currencyDigits = currencyDigits.toString();
 36         currencyDigits = currencyDigits.replace(/,/g, "");    // Remove comma delimiters. 
 37         currencyDigits = currencyDigits.replace(/^0+/, "");   // Trim zeros at the beginning. 
 38 
 39         if (Number(currencyDigits) < MAXIMUM_NUMBER) {
 40             if (Number(currencyDigits) < 0) {
 41                 outputCharacters += "负";
 42                 currencyDigits = Math.abs(Number(currencyDigits)).toString();
 43             }
 44 
 45             parts = currencyDigits.split("."); // separate the number by decimal point
 46             if (parts.length > 1) {
 47                 integral = parts[0];
 48                 decimal = parts[1];                        
 49                 decimal = decimal.substr(0, 2);// two decimal places
 50             } else {
 51                 integral = parts[0];
 52                 decimal = "";
 53             }
 54 
 55             digits = new Array(CN_ZERO, CN_ONE, CN_TWO, CN_THREE, CN_FOUR, CN_FIVE, CN_SIX, CN_SEVEN, CN_EIGHT, CN_NINE);
 56             radices = new Array("", CN_TEN, CN_HUNDRED, CN_THOUSAND);
 57             bigRadices = new Array("", CN_TEN_THOUSAND, CN_HUNDRED_MILLION);
 58             decimals = new Array(CN_TEN_CENT, CN_CENT);
 59 
 60             if (Number(integral) > 0) {
 61                 zeroCount = 0;
 62                 for (i = 0; i < integral.length; i++) {
 63                     p = integral.length - i - 1;
 64                     d = integral.substr(i, 1);
 65                     quotient = p / 4;
 66                     modulus = p % 4;
 67                     if (d == "0") {
 68                         zeroCount++;
 69                     } else {
 70                         if (zeroCount > 0) {
 71                             outputCharacters += digits[0];
 72                         }
 73                         zeroCount = 0;
 74                         outputCharacters += digits[Number(d)] + radices[modulus];
 75                     }
 76                     if (modulus == 0 && zeroCount < 4) {
 77                         outputCharacters += bigRadices[quotient];
 78                     }
 79                 }
 80                 outputCharacters += CN_DOLLAR;
 81             }
 82 
 83             if (decimal != "") {
 84                 for (i = 0; i < decimal.length; i++) {
 85                     d = decimal.substr(i, 1);
 86                     if (d != "0") {
 87                         outputCharacters += digits[Number(d)] + decimals[i];
 88                     }
 89                 }
 90             }
 91             if (outputCharacters == "") {
 92                 outputCharacters = CN_ZERO + CN_DOLLAR;
 93             }
 94             if (decimal == "") {
 95                 outputCharacters += CN_INTEGER;
 96             }
 97             outputCharacters = "" + outputCharacters + "";
 98         }
 99     }
100     return outputCharacters;
101 }

 

posted @ 2016-12-23 16:32  wuln  阅读(988)  评论(0)    收藏  举报