js实现格式化金额,字符,时间的方法

本文实例讲述了js实现格式化金额,字符,时间的方法。分享给大家供大家参考。具体实现方法如下：

//金额转换成大写

     function toDaX(num){

        //金额大小写转换 

           if (isNaN(num) || num > Math.pow(10, 12))

                    return "";

           var cn = "零壹贰叁肆伍陆柒捌玖";

           var unit = new Array("拾佰仟", "分角");

           var unit1 = new Array("万亿", "");

           if(parseFloat(num)==0||num==''){

               return "零圆";

           }

           var numArray = num.toString().split(".");

           var start = new Array(numArray[0].length - 1, 2);

           function toChinese(num, index) {

               var num = num.replace(/\d/g, function($1) {

                    return cn.charAt($1)+ unit[index].charAt(start-- % 4 ? start % 4 : -1);

                   });

               return num;

           }

           for ( var i = 0; i < numArray.length; i++) {

                var tmp = "";

                for ( var j = 0; j * 4 < numArray[i].length; j++) {

                   var strIndex = numArray[i].length - (j + 1) * 4;

                   var str = numArray[i].substring(strIndex, strIndex + 4);

                   var start = i ? 2 : str.length - 1;

                   var tmp1 = toChinese(str, i);

                   tmp1 = tmp1.replace(/(零.)+/g, "零").replace(/零+$/, "");

                   tmp1 = tmp1.replace(/^壹拾/, "拾");

                   tmp = (tmp1 + unit1[i].charAt(j - 1)) + tmp;

                }

               numArray[i] = tmp;

           }

           numArray[1] = numArray[1] ? numArray[1] : "";

           numArray[0] = numArray[0] ? numArray[0] + "元" : numArray[0],numArray[1] = numArray[1].replace(/^零+/, "");

           numArray[1] = numArray[1].match(/分/) ? numArray[1] : numArray[1] + "整";

           return numArray[0] + numArray[1];

     }  

/** 金额格式化 添加“,”分隔符 */
function addComma(money) {

if(money==""){

return "";

}

if(money){

money = money.trim();

}

    if(/[^0-9\.\-\+]/.test(money)){   

    return money;

    } 

    money = parseFloat(money) + "";  

    if('NaN' == money){

    return  "0.00";

    }

    var money_flag = "";

    if(money.indexOf("-") != -1){

    money = money.replace(/-/g,"");

    money_flag = "-";

    }
    money=money.replace(/^(\d*)$/,"$1.");   

    money=(money+"00").replace(/(\d*\.\d\d)\d*/,"$1");   

    money=money.replace(".",",");   

    var re=/(\d)(\d{3},)/;   

    while(re.test(money)){   

      money=money.replace(re,"$1,$2");   

    }   

    money=money.replace(/,(\d\d)$/,".$1");  

    var money =  money_flag+""+money.replace(/^\./,"0.")

    return money;           

}
/** 金额格式化 去“,”分隔符 */

function delComma(value) {

  var rtnVal = value + "";

  return rtnVal.replace(/,/g,"");

}
/**

 * 金额格式化 字符串添加小数点 

 */

function addPoint(money){ 

if(/[^0-9\.]/.test(money)){   

    return money;

    }

    

    if(money.length < 3 || money.indexOf(".") > -1){ 

    return money;

    }

    

    return money.substring(0,money.length - 2) + "." + money.substring(money.length - 2,money.length);

}

/**

 * 金额格式化 数字去小数点 

 */

function removePoint(money){ 

    if(/[^0-9\.]/.test(money)){   

    return money;

    }

    

    var valueFloat = parseFloat(money) * 100;

    var valueInt = parseInt(valueFloat);

    return valueInt;

}

/* 格式化小数点后两位数字 以百分比显示 */

function addPercent(str){

    var percent = Math.floor(str * 100) / 100;

    percent=(percent.toFixed(2));

    return percent+'%';

}
/** 字符格式化 添加 空格 分隔符 */

function addSpace(value) {

if(value == null || value == ""){

return "";

}
    var value = value + "";

    var tmpStr = "";

    while (value.length > 4) {

        tmpStr = tmpStr + value.substring(0,4)+ " ";

        value = value.substring(4,value.length);

    }

    tmpStr = tmpStr + value;

    return tmpStr;

}
/** 字符格式化 去除 空格 分隔符 */

function removeSpace(value) {

var rtnVal = value + "";

  return rtnVal.replace(/ /g,"");

}
// 格式化日期时间字符串

// YYYYMMDD-》YYYY-MM-DD

// YYYYMMDDhhmmss-》YYYY-MM-DD hh:mm:ss

function formatDatetime(oldvalue){ 

if(oldvalue == null){

return "";

}else if(oldvalue.length == 8){

return oldvalue.substring(0,4) +

      "-" + oldvalue.substring(4,6) + 

      "-" + oldvalue.substring(6,8);

}else if(oldvalue.length == 14){

return oldvalue.substring(0,4) +

      "-" + oldvalue.substring(4,6) + 

      "-" + oldvalue.substring(6,8) + 

      

      " " + oldvalue.substring(8,10) + 

      ":" + oldvalue.substring(10,12) + 

      ":" + oldvalue.substring(12,14);

}else if(oldvalue.length == 6){

return oldvalue.substring(0,2) +

      ":" + oldvalue.substring(2,4) + 

      ":" + oldvalue.substring(4,6);

}else{

return oldvalue;

}

}
function StringToDate(str){

var datainfo=str.split('-');

    return new Date(datainfo[0],datainfo[1],datainfo[2]);

}

希望本文所述对大家的javascript程序设计有所帮助。