通过出生日期和当前日期计算年，月，天(我的年龄、在职日期)
常见应用：
我多大了，在职时间
C#代码：
1 /// 通过出生日期和当前日期计算年，月，天 2 /// </summary> 3 /// <param name="birth">出生日期</param> 4 /// <param name="now">当前日期</param> 5 /// <param name="year">年</param> 6 /// <param name="month">月</param> 7 /// <param name="day">天</param> 8 private void GetDateByBirth(DateTime birth, DateTime now, out int year, out int month, 9 out int day) 10 { 11 //出生日期的年，月，日 12 int birthYear = birth.Year; 13 int birthMonth = birth.Month; 14 int birthDay = birth.Day; 15 16 //当前时间的年,月,日 17 int nowYear = now.Year; 18 int nowMonth = now.Month; 19 int nowDay = now.Day; 20 21 //得到天 22 if (nowDay >= birthDay) 23 { 24 day = nowDay - birthDay; 25 } 26 else 27 { 28 nowMonth -= 1; 29 day = GetDay(nowMonth, nowYear) + nowDay - birthDay; 30 } 31 32 //得到月 33 if (nowMonth >= birthMonth) 34 { 35 month = nowMonth - birthMonth; 36 } 37 else 38 { 39 nowYear -= 1; 40 month = 12 + nowMonth - birthMonth; 41 } 42 43 //得到年 44 year = nowYear - birthYear; 45 } 46 47 /// <summary> 48 /// 获取天数 49 /// </summary> 50 private int GetDay(int month, int year) 51 { 52 int day = 0; 53 switch (month) 54 { 55 case 1: 56 case 3: 57 case 5: 58 case 7: 59 case 8: 60 case 10: 61 case 12: 62 day = 31; 63 break; 64 case 2: 65 //闰年天，平年天 66 if ((year % 4 == 0 && year % 100 != 0) || year % 400 == 0) 67 { 68 day = 29; 69 } 70 else 71 { 72 day = 28; 73 } 74 break; 75 case 4: 76 case 6: 77 case 9: 78 case 11: 79 day = 30; 80 break; 81 } 82 return day; 83 }
Js代码：
1 function GetDateValue(entry){ 2 //差值 3 var year; 4 var month; 5 var day; 6 7 //入职日期 8 var dateArr = entry.split("-"); 9 var entry_year = parseInt(dateArr[0]); 10 var entry_month = parseInt(dateArr[1]); 11 var entry_day = parseInt(dateArr[2]); 12 //当前日期 13 var d = new Date(); 14 var now_year = d.getFullYear(); 15 var now_day = d.getDate(); 16 var now_month = d.getMonth() + 1; 17 18 //得到天 19 if(now_day >= entry_day){ 20 day = now_day - entry_day; 21 }else{ 22 now_month = now_month - 1; 23 day = GetDay(now_month,now_year) + now_day - entry_day; 24 } 25 //得到月 26 if(now_month >= entry_month){ 27 month = now_month - entry_month; 28 }else{ 29 now_year = now_year -1; 30 month = 12 + now_month - entry_month; 31 } 32 //得到年 33 year = now_year - entry_year; 34 35 //字符串 36 var basic_experience = " 在职"; 37 if (year != 0) 38 basic_experience += Math.abs(year) + "年"; 39 if (month != 0) 40 basic_experience += Math.abs(month) + "月"; 41 if (day != 0) 42 basic_experience += Math.abs(day) + "天"; 43 return basic_experience; 44 } 45 //获取天 46 function GetDay(month,year){ 47 var day = 0; 48 if(month == 1 || month == 3 || month == 5 || month == 7 || month == 8 || month == 10 || month == 12){ 49 day = 31; 50 }else if(month == 2){ 51 if(year % 4 == 0 && year % 100 !=0 || year % 400 == 0){ 52 day = 29; 53 }else{ 54 day = 28; 55 } 56 }else if(month == 4 || month == 6 || month == 9 || month == 11){ 57 day = 30; 58 } 59 return day; 60 }
