获取规定法则的年月日
作者:互联网
根据传入的日期,年份(整数),循环数(整数),及字符串数组等参数,返回三位数的“年月日"字符串;
比如,定义字符串数组string[] a=new string[31]
{ "1","2","3","4","5","6","7","8","9", "A","B","C","D","E","F","G","H","J", "K","L","M","N","P","R","S","T","V", "W","X","Y","O"};
然后执行方法getYMD(DateTime.Prase("2021-10-22",2011,30,a),则返回"BBN"。
/// <summary> /// 获取规定法则的年月日 /// </summary> /// <param name="date">日期</param> /// <param name="start">开始计算的年份整数</param> /// <param name="recycle">轮回数(即多少年循环一次)</param> /// <param name="a">年份对应的编码数组</param> /// <returns></returns> public string getYMD(DateTime date,int start,int recycle,string[] a) { //string[] a = new string[31] { "1","2","3","4","5","6","7","8","9", // "A","B","C","D","E","F","G","H","J", // "K","L","M","N","P","R","S","T","V", // "W","X","Y","O"}; string yyyyMMdd = date.ToString("yyyyMMdd"); //把日期转换为八位数的年月日字符串 int y = int.Parse(yyyyMMdd.Substring(0, 4)); //取年份整数 int m = int.Parse(yyyyMMdd.Substring(4, 2)); //取月份整数 int d = int.Parse(yyyyMMdd.Substring(6)); //取日期整数 string strY = a[(y-start) % recycle ]; string strM = a[m - 1]; string strD = a[d - 1]; yyyyMMdd = strY + strM + strD; return yyyyMMdd; }
标签:法则,string,int,整数,Substring,获取,yyyyMMdd,年月日 来源: https://www.cnblogs.com/lxh168/p/15388831.html