AS3常用工具类，很有用的东西，值得收藏
package com{
public class Test {
public function Test() {
}
/**
* 左截字符串
* @param text
* @param param1
*
*/
public function leftCut(text:String,Index:int):String {
//text.indexOf(text,Index)
return text.charAt(Index);
}
/**
* 右截字符串
* @param text
* @param param1
*
*/
public function RightCut(text:String,Index:int):String {
//text.lastIndexOf(text,Index)
return text.charAt(text.length - Index);
}
/**
* 中截字符串
* @param text
* @param startIndex
* @param endIndex
*
*/
public function MiddleCut(text:String,startIndex:int,endIndex:int):void {
text.substring(startIndex,endIndex);
}
/**
* 中截字符串
* @param text
* @param startIndex
* @param endIndex
*
*/
public function MiddleCut2(text:String,startIndex:int,length:int):void {
text.substr(startIndex,length);
}
/**
* 中截字符串
* @param text
* @param startIndex
* @param endIndex
*
*/
public function MiddleCut3(text:String,startIndex:int,endIndex:int):void {
text.slice(startIndex,endIndex);
}
/**
*
* @param text
* @return
* 获取字符串的长度
*/
public function getLength(text:String):int {
return text.length;
}
/**
* 强制转换为数值
* @param text
* @return
*
*/
public function getVal(text:String):Number {
var value:int = Number(text);
return value;
}
/**
*判断该字符创是否全是数字
* @param test
* @return
*
*/
public function isNumber(test:String):Boolean {
var isNum:Boolean = int(test).toString() == test;
return isNum;
}
/**
* 将该字符强制转换为字符串
* @param test
* @return
*
*/
public function string(test:String):String {
return string(test);
}
/**
*判断是否为空
* @param test
* @return
*
*/
public function checkNull(test:String):Boolean {
if (test) {
return false;
} else {
return true;
}
}
/**
*字符转小写
* @param test
* @return
*
*/
public function LowerCase(test:String):String {
return test.toLowerCase();
}
/**
*字符转大写
* @param test
* @return
*
*/
public function UpCase(test:String):String {
return test.toLocaleUpperCase();
}
/**
* 取年
*
*/
public function getYear():Number {
var nowData:Date = new Date ;
return nowData.fullYear;
}
/**
* 取月
*
*/
public function getMonth():Number {
var nowData:Date = new Date ;
return nowData.month;
}
/**
* 取日
*
*/
public function getDay():Number {
var nowData:Date = new Date ;
return nowData.day;
}
/**
*返回当前日期
* @return
*
*/
public function getNowDate():String {
var nowData:Date = new Date ;
var year:Number = nowData.fullYear;
var month:Number = nowData.month;
var day:Number = nowData.date;
var result:String = year + '-' + month + '-' + day;
return result;
}
/**
* 判断身份证是否合法
* @param idcard
* @return
*
*/
public function checkIdcard(idcard:String):Boolean {
var pattern:RegExp = /^\s*|\s*$/;
if ((idcard == "")) {
trace("输入身份证号码不能为空!");
return false;
}
//必须为15位或者是18位
if (idcard.length != 15 && idcard.length != 18) {
trace("输入身份证号码格式不正确1!");
return false;
}
var area = {11:"北京",12:"天津",13:"河北",14:"山西",15:"内蒙古",21:"辽宁",22:"吉林",23:"黑龙江",31:"上海",32:"江苏",33:"浙江",34:"安徽",35:"福建",36:"江西",37:"山东",41:"河南",42:"湖北",43:"湖南",44:"广东",45:"广西",46:"海南",50:"重庆",51:"四川",52:"贵州",53:"云南",54:"西藏",61:"陕西",62:"甘肃",63:"青海",64:"宁夏",65:"新疆",71:"台湾",81:"香港",82:"澳门",91:"国外"};
//var areaArray:Array=new Array();
//areaArray=[11,12,13,14,15,21,22,23,31,32,33,34,35,36,37,41,42,43,44,45,46,50,51,52,53,54,61,62,
//63,64,65,71,81,82,91]
//var areaId:int=parseInt(idcard.substr(0,2));
//for (var j:int = 0; j < areaArray.length; j++)
//{
//if (areaArray[i]!=areaId)//没有匹配项的话就不合法
//{
//trace("身份证号码不正确(地区非法)!");
//return (false);
//}
//}
if (area[parseInt(idcard.substr(0,2))] == null) {
trace("身份证号码不正确(地区非法)!");
return false;
}
if (idcard.length == 15) {
pattern = /^\d{15}$/;
if (pattern.exec(idcard) == null) {
trace("15位身份证号码必须为数字！");
return false;
}
var birth = parseInt(("19" + idcard.substr(6,2)));
var month = idcard.substr(8,2);
var day = parseInt(idcard.substr(10,2));
switch (month) {
case '01' :
case '03' :
case '05' :
case '07' :
case '08' :
case '10' :
case '12' :
if ((day > 31)) {
trace('输入身份证号码不格式正确2!');
return false;
}
break;
case '04' :
case '06' :
case '09' :
case '11' :
if ((day > 30)) {
trace('输入身份证号码不格式正确3!');
return false;
}
break;
case '02' ://闰年
if (((((birth % 4) == 0) && birth % 100 != 0) || birth % 400 == 0)) {
if ((day > 29)) {
trace('输入身份证号码不格式正确4!');
return false;
}
} else {
if ((day > 28)) {
trace('输入身份证号码不格式正确5!');
return false;
}
}
break;
default :
trace('输入身份证号码不格式正确6!');
return false;
}
var nowYear = new Date .fullYear;//年龄限制
if ((((nowYear - parseInt(birth)) < 0) || nowYear - parseInt(birth) > 110)) {
trace('输入身份证号码不格式正确7!');
return false;
}
return true;
}
//系数
var Wi:Array = new Array(7,9,10,5,8,4,2,1,6,3,7,9,10,5,8,4,2);
var lSum:Number = 0;
var nNum:Number = 0;
var nCheckSum:Number = 0;
for (var i:int = 0; i < 17; ++i) {
if (idcard.charAt(i) < '0' || idcard.charAt(i) > '9') {
trace("输入身份证号码格式不正确8!");
return false;
} else {
nNum = Number(idcard.charAt(i));//获得每个位子上的数字
}
lSum += nNum * Wi[i];//将这17位数字和系数相乘的结果相加
}
if (idcard.charAt(17) == 'X' || idcard.charAt(17) == 'x') {
lSum += 10 * Wi[16];
} else if (idcard.charAt(17) < '0' || idcard.charAt(17) > '9') {
trace("输入身份证号码格式不正确9!");
return false;
} else {
lSum += Number(idcard.charAt(17)) * Wi[16];
}
//用加出来的和除以11，看余数是多少？
var yu:Number = lSum % 11;
//余数只可能有0－1－2－3－4－5－6－7－8－9－10这11个数字。
//其分别对应的最后一位身份证的号码为1－0－X －9－8－7－6－5－4－3－2 。
switch (yu) {
case 0 :
return true;
case 1 :
return true;
case 2 :
return true;
case 3 :
return true;
case 4 :
return true;
case 5 :
return true;
case 6 :
return true;
case 7 :
return true;
case 8 :
return true;
case 9 :
return true;
case 10 :
return true;
default :
trace("输入身份证号码格式不正确10!");
return false;
}
}
/**
* 去除首尾空格
* @param char
* @return
*
*/
public function trim(test:String):String {
var pattern:RegExp = /^\s*|\s*$/;
return test.replace(pattern,"");
}
/**
* 判断字符串中是否有中文
* @param test
* @return
* 取出字符串中的每一个字符，然后转换陈unicon编码，然后比较，如果是大于1000的，就是中文
*/
public function ExistChinese(test:String):Boolean {
for (var i:int = 0; i < test.length; i++) {
if (test.charCodeAt(i) >= 1000) {
//说明该字符是中文
return true;
}
}
return false;
}
//public static const NUM_ARR:Array = ["零", "一", "二", "三", "四", "五", "六", "七", "八", "九","十"];
//public static const UNITS:Array = ["万","千", "百"];
///**
// * 计算中文数值单位
// * @param num
// * @return
// *
// */
//public function toCNUpper(num:Number ):String
//{
//
//return ;
//}
/**
*将15位身份证转换成18位身份证
* @param cardId
* @return
*
*/
public function idCard18(cardId:String):String {
var lSum:Number = 0;
var nNum:Number = 0;
////系数
var Wi:Array = new Array(7,9,10,5,8,4,2,1,6,3,7,9,10,5,8,4,2,1);
//将15位的号码转换位17位
var cardID17:String = cardId.substring(0,6) + "19" + cardId.substring(6);
for (var i:int = 0; i < 17; ++i) {
nNum = Number(cardID17.charAt(i));//获得每个位子上的数字
lSum += nNum * Wi[i];//将这17位数字和系数相乘的结果相加
}
var yu:Number = lSum % 11;
switch (yu) {
case 0 :
return cardID17 + "1";
break;
case 1 :
return cardID17 + "0";
break;
case 2 :
return cardID17 + "X";
break;
case 3 :
return cardID17 + "9";
break;
case 4 :
return cardID17 + "8";
break;
case 5 :
return cardID17 + "7";
break;
case 6 :
return cardID17 + "6";
break;
case 7 :
return cardID17 + "5";
break;
case 8 :
return cardID17 + "4";
break;
case 9 :
return cardID17 + "3";
break;
case 10 :
return cardID17 + "2";
break;
default :
break;
}
return cardID17;
}
/**
*获取身份证上的日期
* @param idCard
* @return
*
*/
public function idCardDate(idCard:String):String {
var date:String;
if (idCard.length == 15) {
var year:String = "19" + idCard.substr(6,2);
var manth:String = idCard.substr(8,2);
var day:String = idCard.substr(10,2);
date = year + "-" + manth + "-" + day;
}
if (idCard.length == 18) {
var year1:String = idCard.substr(6,4);
var manth1:String = idCard.substr(8,2);
var day1:String = idCard.substr(10,2);
date = year1 + "-" + manth1 + "-" + day1;
}
return date;
}
/**
* 字符串定位
* @param substring
* @param totalstring
* @return
*
*/
public function strpos(substring:String,totalstring:String):int {
var pos:int = totalstring.indexOf(substring,0);
return pos;
}
/**
* 去绝对值
* @param test
* @return
*
*/
public function getAbs(test:String):Number {
var newNum:int = Math.abs(Number(test));
return newNum;
}
/**
* 向下取近似值
* @param test
* @return
*
*/
public function getFloor(test:String):Number {
var floorNum:Number = Math.floor(Number(test));
return floorNum;
}
}
}来源：http://bbs.9ria.com/thread-178713-1-1.html
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