两个日期之间的月份开始日期和结束日期以及每个月的日期 [英] Months start and end dates and no of days in each month between two dates

问题描述

我有以下日期作为参数



开始日期：02/15/2016

结束日期：02/14/2017 < br $> b $ b

预期产量：



MonthStart MonthEnd NoOfDays

02/15/2016 02/29/2016 15

03/01/2016 03/31/2016 31

04/01/2016 04/30/2016 30

05/01/2016 05/31/2016 31

06/01/2016 06/30/2016 30

07/01/2016 07/31/2016 31

08/01/2016 08/31/2016 31

09/01/2016 09/30/2016 30

10/01 / 2016 10/31/2016 31

11/01/2016 11/30/2016 30

12/01/2016 12/31/2016 31

01/01/2017 01/31/2017 31

02/01/2017 02/14/2017 14



我尝试了什么：



我是新手，需要帮助以达到预期的输出。

解决试点

试试这个..

<前一个=c＃> 公共 static void PrintDates（DateTime start，DateTime end）
{
while （开始< 结束）
{
var lastDayOfMonth = DateTime.DaysInMonth（start.Year，start.Month）;
var howManyDays = lastDayOfMonth - start.Day;
var monthEndDate = start.AddDays（howManyDays）;
if （end< = monthEndDate）
Console.WriteLine（ {0} {1} {2}，start.ToShortDateString（），end.ToShortDateString（），（end - start）.TotalDays + 1 ）;
else
Console.WriteLine（ {0} {1} {2}，start.ToShortDateString（），monthEndDate.ToShortDateString（），（monthEndDate - start）.TotalDays + 1 ）;
start = monthEndDate.AddDays（ 1 ）;
}
}

  var  start =  new  DateTime（ 2016 ， 02 ， 15 ）; 
  var  end =  new  DateTime（ 2017 ， 02 ， 14 ）; 
 PrintDates（开始，结束）; 
 

使用DateTime.Add等熟悉日期数学，以及TimeSpan类。对于任何给定的月份，您可以通过创建一个DateTime类来找到开始，该类具有1作为日期和给定的月份和年份。要找出那个月结束的时间，只需在一个月的第一天添加一个月，然后减去一天（加上-1天）。



这给你一个开始，结束日期，所以每天都要使用 DateTime.DayOfWeek [ ^ ]查看是否为工作日，以及是否为运行计数加1。如果你把它变成一个函数，你只需要在开始和结束日期之间每个月运行它。

I have following Dates as parameters

Start Date: 02/15/2016
End Date: 02/14/2017

Expected Output:

MonthStart MonthEnd NoOfDays
02/15/2016 02/29/2016 15
03/01/2016 03/31/2016 31
04/01/2016 04/30/2016 30
05/01/2016 05/31/2016 31
06/01/2016 06/30/2016 30
07/01/2016 07/31/2016 31
08/01/2016 08/31/2016 31
09/01/2016 09/30/2016 30
10/01/2016 10/31/2016 31
11/01/2016 11/30/2016 30
12/01/2016 12/31/2016 31
01/01/2017 01/31/2017 31
02/01/2017 02/14/2017 14

What I have tried:

I am new to this need help in getting above expected output.

解决方案

Try this..

public static void PrintDates(DateTime start, DateTime end)
{
while (start < end)
{
var lastDayOfMonth = DateTime.DaysInMonth(start.Year, start.Month);
var howManyDays = lastDayOfMonth - start.Day;
var monthEndDate=start.AddDays(howManyDays);
if(end<=monthEndDate)
Console.WriteLine("{0} {1} {2}", start.ToShortDateString(), end.ToShortDateString(), (end - start).TotalDays + 1);
else
Console.WriteLine("{0} {1} {2}", start.ToShortDateString(), monthEndDate.ToShortDateString(), (monthEndDate - start).TotalDays + 1);
start = monthEndDate.AddDays(1);               
}
}

var start = new DateTime(2016, 02, 15);
var end = new DateTime(2017, 02, 14);
PrintDates(start, end);

Get familiar with date maths using DateTime.Add etc, and the TimeSpan class. For any given month you can find the start by making a DateTime class that has 1 as the day and the given month and year. To find out when that month ends simply add one month to the first of the month then subtract one day (add -1 days).

That gives you the start and end date so go through each day and use DateTime.DayOfWeek[^] to see if it is a week day, and if it is add 1 to a running count. If you make that into a function you just need to run it for each month between the start and end dates.

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