JS文本框輸入數(shù)字立即轉(zhuǎn)換為大寫人民幣金額顯示，具體代碼如下：
/////////////////////////////////////////////////////////////////////
//界面
/////////////////////////////////////////////////////////////////////
<div>
<span>輸入數(shù)字：<asp:TextBox ID="Digits" name="Digits" runat="server" onkeyup="convertCurrency(this.value);"></asp:TextBox></span>
<span>大寫金額：<asp:TextBox ID="getCapital" name="getCapital" runat="server" Width="400"></asp:TextBox></span>
</div>
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//BLL.JS 中數(shù)字字符轉(zhuǎn)換成大寫人民幣通用方法封裝
//////////////////////////////////////////////////////////////////////
function convertCurrency(currencyDigits) {
var MAXIMUM_NUMBER = 99999999999.99; //最大值
// 定義轉(zhuǎn)移字符
var CN_ZERO = "零";
var CN_ONE = "壹";
var CN_TWO = "貳";
var CN_THREE = "叁";
var CN_FOUR = "肆";
var CN_FIVE = "伍";
var CN_SIX = "陸";
var CN_SEVEN = "柒";
var CN_EIGHT = "捌";
var CN_NINE = "玖";
var CN_TEN = "拾";
var CN_HUNDRED = "佰";
var CN_THOUSAND = "仟";
var CN_TEN_THOUSAND = "萬";
var CN_HUNDRED_MILLION = "億";
var CN_DOLLAR = "元";
var CN_TEN_CENT = "角";
var CN_CENT = "分";
var CN_INTEGER = "整";
// 初始化驗證:
var integral, decimal, outputCharacters, parts;
var digits, radices, bigRadices, decimals;
var zeroCount;
var i, p, d;
var quotient, modulus;
// 驗證輸入字符串是否合法
if (currencyDigits.toString() == "") {
alert("還沒有輸入數(shù)字");
$("#Digits").focus();
return;
}
if (!currencyDigits.match(/[^,.\d]/)) {
alert("請輸入有效數(shù)字");
$("#Digits").focus();
return;
}
//判斷是否輸入有效的數(shù)字格式
var reg = /^((\d{1,3}(,\d{3})*(.((\d{3},)*\d{1,3}))?)|(\d+(.\d+)?))$/;
if (!reg.test(currencyDigits)) {
alert("請輸入有效格式數(shù)字");
$("#Digits").focus();
return;
}
currencyDigits = currencyDigits.replace(/,/g, "");
currencyDigits = currencyDigits.replace(/^0+/, "");
//判斷輸入的數(shù)字是否大于定義的數(shù)值
if (Number(currencyDigits) > MAXIMUM_NUMBER) {
alert("您輸入的數(shù)字太大了");
$("#Digits").focus();
return;
}
parts = currencyDigits.split(".");
if (parts.length > 1) {
integral = parts[0];
decimal = parts[1];
decimal = decimal.substr(0, 2);
}
else {
integral = parts[0];
decimal = "";
}
// 實例化字符大寫人民幣漢字對應的數(shù)字
digits = new Array(CN_ZERO, CN_ONE, CN_TWO, CN_THREE, CN_FOUR, CN_FIVE, CN_SIX, CN_SEVEN, CN_EIGHT, CN_NINE);
radices = new Array("", CN_TEN, CN_HUNDRED, CN_THOUSAND);
bigRadices = new Array("", CN_TEN_THOUSAND, CN_HUNDRED_MILLION);
decimals = new Array(CN_TEN_CENT, CN_CENT);
outputCharacters = "";
//大于零處理邏輯
if (Number(integral) > 0) {
zeroCount = 0;
for (i = 0; i < integral.length; i++) {
p = integral.length - i - 1;
d = integral.substr(i, 1);
quotient = p / 4;
modulus = p % 4;
if (d == "0") {
zeroCount++;
}
else {
if (zeroCount > 0) {
outputCharacters += digits[0];
}
zeroCount = 0;
outputCharacters += digits[Number(d)] + radices[modulus];
}
if (modulus == 0 && zeroCount < 4) {
outputCharacters += bigRadices[quotient];
}
}
outputCharacters += CN_DOLLAR;
}
// 包含小數(shù)部分處理邏輯
if (decimal != "") {
for (i = 0; i < decimal.length; i++) {
d = decimal.substr(i, 1);
if (d != "0") {
outputCharacters += digits[Number(d)] + decimals[i];
}
}
}
//確認并返回最終的輸出字符串
if (outputCharacters == "") {
outputCharacters = CN_ZERO + CN_DOLLAR;
}
if (decimal == "") {
outputCharacters += CN_INTEGER;
}
//獲取人民幣大寫
$("#getCapital").val(outputCharacters);
}