//Js获取日期、月初时的前天、昨天、今天、明天function getDay(day) {var today = new Date();var targetday_milliseconds = today.getTime() + 1000 * 60 * 60 * 24 * day;today.setTime(targetday_milliseconds); //注意，这行是关键代码var tYear = today.getFullYear();var tMonth = today.getMonth();var tDate = today.getDate();tMonth = doHandleMonth(tMonth + 1);tDate = doHandleMonth(tDate);return tYear + "-" + tMonth + "-" + tDate;}function doHandleMonth(month) {var m = month;if (month.toString().length == 1) {m = "0" + month;}return m;}//日期格式化format()Date.prototype.format = function (format) {var o = {"M+": this.getMonth() + 1, //month"d+": this.getDate(), //day"h+": this.getHours(), //hour"m+": this.getMinutes(), //minute"s+": this.getSeconds(), //second"q+": Math.floor((this.getMonth() + 3) / 3), //quarter"S": this.getMilliseconds() //millisecond};if (/(y+)/.test(format)) {format = format.replace(RegExp.$1, (this.getFullYear() + "").substr(4 - RegExp.$1.length));}for (var k in o) {if (new RegExp("(" + k + ")").test(format)) {format = format.replace(RegExp.$1, RegExp.$1.length == 1 ? o[k] : ("00" + o[k]).substr(("" + o[k]).length));}}return format;};/* 得到日期年月日等加数字后的日期 */Date.prototype.dateAdd = function (interval, number) {var d = this;var k = {'y': 'FullYear','q': 'Month','m': 'Month','w': 'Date','d': 'Date','h': 'Hours','n': 'Minutes','s': 'Seconds','ms': 'MilliSeconds'};var n = {'q': 3, 'w': 7};eval('d.set' + k[interval] + '(d.get' + k[interval] + '()+' + ((n[interval] || 1) * number) + ')');return d;};//身份证验证var Wi = [7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2, 1];// 加权因子var ValideCode = [1, 0, 10, 9, 8, 7, 6, 5, 4, 3, 2];// 身份证验证位值.10代表Xfunction IdCardValidate(idCard) {// idCard = trim(idCard.replace(/ /g, ""));//if (idCard.length == 15) {// return isValidityBrithBy15IdCard(idCard);//} elseif (idCard.length == 18) {var a_idCard = idCard.split("");// 得到身份证数组if (isValidityBrithBy18IdCard(idCard) && isTrueValidateCodeBy18IdCard(a_idCard)) {return true;} else {return false;}} else {return false;}}/*** 判断身份证号码为18位时最后的验证位是否正确* @param a_idCard 身份证号码数组* @return*/function isTrueValidateCodeBy18IdCard(a_idCard) {var sum = 0; // 声明加权求和变量if (a_idCard[17].toLowerCase() == 'x') {a_idCard[17] = 10;// 将最后位为x的验证码替换为10方便后续操作}for (var i = 0; i < 17; i++) {sum += Wi[i] * a_idCard[i];// 加权求和}var valCodePosition = sum % 11;// 得到验证码所位置if (a_idCard[17] == ValideCode[valCodePosition]) {return true;} else {return false;}}/*** 通过身份证判断是男是女* @param idCard 15/18位身份证号码*/function genderByIDCard(val) {if (15 == val.length) {//15位身份证号码if (parseInt(val.charAt(14) / 2) * 2 != val.charAt(14))return 0;elsereturn 1;}if (18 == val.length) {//18位身份证号码if (parseInt(val.charAt(16) / 2) * 2 != val.charAt(16))return 0;//男elsereturn 1;//女}}/*** 通过身份证判断周岁年龄*/function ageByIDCard(val) {var birthdayValue;//if (15 == val.length) { //15位身份证号码// birthdayValue = val.charAt(6) + val.charAt(7);// if (parseInt(birthdayValue) < 10) {// birthdayValue = '20' + birthdayValue;// }// else {// birthdayValue = '19' + birthdayValue;// }// birthdayValue = birthdayValue + val.charAt(8) + val.charAt(9) + "." + val.charAt(10) + val.charAt(11) + "." + val.charAt(12) + val.charAt(13);////}if (18 == val.length) {//18位身份证号码birthdayValue = val.charAt(6) + val.charAt(7) + val.charAt(8) + val.charAt(9) + "." + val.charAt(10) + val.charAt(11) + "." + val.charAt(12) + val.charAt(13);}var age = jsGetAge(birthdayValue);return age;}/*** 获取周岁*/function jsGetAge(strBirthday) {var returnAge;var strBirthdayArr = strBirthday.split(".");var birthYear = strBirthdayArr[0];var birthMonth = strBirthdayArr[1];var birthDay = strBirthdayArr[2];var d = new Date();var nowYear = d.getFullYear();var nowMonth = d.getMonth() + 1;var nowDay = d.getDate();if (nowYear == birthYear) {returnAge = 0;//同年 则为0岁} else {var ageDiff = nowYear - birthYear; //年之差if (ageDiff > 0) {if (nowMonth == birthMonth) {var dayDiff = nowDay - birthDay;//日之差if (dayDiff < 0) {returnAge = ageDiff - 1;} else {returnAge = ageDiff;}} else {var monthDiff = nowMonth - birthMonth;//月之差if (monthDiff < 0) {returnAge = ageDiff - 1;} else {returnAge = ageDiff;}}} else {returnAge = -1;//返回-1 表示出生日期输入错误 晚于今天}}return returnAge;//返回周岁年龄}/*** 通过身份证获取出生年月日*/function birthdayByIDCard(val) {var birthdayValue;//if (15 == val.length) { //15位身份证号码// birthdayValue = val.charAt(6) + val.charAt(7);// if (parseInt(birthdayValue) < 10) {// birthdayValue = '20' + birthdayValue;// }// else {// birthdayValue = '19' + birthdayValue;// }// birthdayValue = birthdayValue + val.charAt(8) + val.charAt(9) + "-" + val.charAt(10) + val.charAt(11) + "-" + val.charAt(12) + val.charAt(13);////}if (18 == val.length) {//18位身份证号码birthdayValue = val.charAt(6) + val.charAt(7) + val.charAt(8) + val.charAt(9) + "-" + val.charAt(10) + val.charAt(11) + "-" + val.charAt(12) + val.charAt(13);}return birthdayValue;}/*** 验证18位数身份证号码中的生日是否是有效生日* @param idCard 18位书身份证字符串* @return*/function isValidityBrithBy18IdCard(idCard18) {var year = idCard18.substring(6, 10);var month = idCard18.substring(10, 12);var day = idCard18.substring(12, 14);var temp_date = new Date(year, parseFloat(month) - 1, parseFloat(day));// 这里用getFullYear()获取年份，避免千年虫问题if (temp_date.getFullYear() != parseFloat(year)|| temp_date.getMonth() != parseFloat(month) - 1|| temp_date.getDate() != parseFloat(day)) {return false;} else {return true;}}/*** 验证15位数身份证号码中的生日是否是有效生日* @param idCard15 15位书身份证字符串* @return*/function isValidityBrithBy15IdCard(idCard15) {var year = idCard15.substring(6, 8);var month = idCard15.substring(8, 10);var day = idCard15.substring(10, 12);var temp_date = new Date(year, parseFloat(month) - 1, parseFloat(day));// 对于老身份证中的你年龄则不需考虑千年虫问题而使用getYear()方法if (temp_date.getYear() != parseFloat(year)|| temp_date.getMonth() != parseFloat(month) - 1|| temp_date.getDate() != parseFloat(day)) {return false;} else {return true;}}
