C#实现根据传入时间段，找出时间段内日期，并生成相对应文件路径
【1】获取固定日期范围内的所有日期，以数组形式返回
/// <summary>
/// 获取固定日期范围内的所有日期，以数组形式返回
/// </summary>
/// <param name="startTime"></param>
/// <param name="endTime"></param>
private DateTime[] GetAllDays(DateTime startTime ,DateTime endTime) {
List<DateTime> listDay = new List<DateTime>();
DateTime dtDay = new DateTime();
//循环比较，取出日期；
for (dtDay = startTime; dtDay.CompareTo(endTime) <= 0;dtDay = dtDay.AddDays(1))
{
listDay.Add(dtDay);
}
return listDay.ToArray();
}
我们来检测一下，在Main函数中编写如下代码：
static void Main(string[] args)
{
System.DateTime currentTime = System.DateTime.Now;
DateTime startTime = currentTime.AddDays(-11);
DateTime endTime = currentTime.AddDays(-1);
//Console.WriteLine(currentTime);
Program getDate = new Program();
DateTime[] dateList = getDate.GetAllDays(startTime, endTime);
for (int i = 0; i < dateList.Length; i++)
{
Console.WriteLine(dateList[i]);
}
}
运行结果如下：
2017/6/18 14:58:18
2017/6/19 14:58:18
2017/6/20 14:58:18
2017/6/21 14:58:18
2017/6/22 14:58:18
2017/6/23 14:58:18
2017/6/24 14:58:18
2017/6/25 14:58:18
2017/6/26 14:58:18
2017/6/27 14:58:18
2017/6/28 14:58:18
【3】我们顺便再拓展一点，根据上面的日期再生成路径
/// <summary>
/// 根据传入时间段生成路径
/// </summary>
/// <param name="filePath"></param>
public List<String> GeneratePath(DateTime startTime,DateTime endTime) {
string FileName;
List<String> filePathList = new List<string>();
string CurDir = System.AppDomain.CurrentDomain.BaseDirectory + @"SaveDir";
String filePath = "";
DateTime[] SubTimeList = GetAllDays(startTime,endTime);
for (int i = 0; i < SubTimeList.Length;i++ )
{
string subStr = SubTimeList[i].ToString("yyyyMMdd");
FileName = "MyFileSend" + subStr + ".txt";
filePath = CurDir + FileName;
filePathList.Add(filePath);
}
return filePathList;
}
我们来检测一下，在Main函数中编写如下代码：
/// <summary>
/// 获取文件中的数据
/// </summary>
/// <param name="filePath"></param>
public static string fileToString(String filePath){
string strData = "";
try
{
string line;
// 创建一个 StreamReader 的实例来读取文件 ,using 语句也能关闭 StreamReader
using (System.IO.StreamReader sr = new System.IO.StreamReader(filePath))
{
// 从文件读取并显示行，直到文件的末尾
while ((line = sr.ReadLine()) != null)
{
//Console.WriteLine(line);
strData = line;
}
}
}
catch (Exception e)
{
// 向用户显示出错消息
Console.WriteLine("The file could not be read:");
Console.WriteLine(e.Message);
}
return strData;
}
static void Main(string[] args)
{
System.DateTime currentTime = System.DateTime.Now;
DateTime startTime = currentTime.AddDays(-11);
DateTime endTime = currentTime.AddDays(-1);
//Console.WriteLine(currentTime);
Program getDate = new Program();
DateTime[] dateList = getDate.GetAllDays(startTime, endTime);
List<String> filePathList = new List<string>();
filePathList = getDate.GeneratePath(startTime, endTime);
Console.WriteLine(filePathList);
for (int i = 0; i < filePathList.Count; i++ )
{
Console.WriteLine(filePathList[i]);
}
}
运行结果如下：
D:\VSProject\SavaProcessToFile\SavaProcessToFile\bin\Debug\SaveDirMyFileSend20170618.txt
D:\VSProject\SavaProcessToFile\SavaProcessToFile\bin\Debug\SaveDirMyFileSend20170619.txt
D:\VSProject\SavaProcessToFile\SavaProcessToFile\bin\Debug\SaveDirMyFileSend20170620.txt
D:\VSProject\SavaProcessToFile\SavaProcessToFile\bin\Debug\SaveDirMyFileSend20170621.txt
D:\VSProject\SavaProcessToFile\SavaProcessToFile\bin\Debug\SaveDirMyFileSend20170622.txt
D:\VSProject\SavaProcessToFile\SavaProcessToFile\bin\Debug\SaveDirMyFileSend20170623.txt
D:\VSProject\SavaProcessToFile\SavaProcessToFile\bin\Debug\SaveDirMyFileSend20170624.txt
D:\VSProject\SavaProcessToFile\SavaProcessToFile\bin\Debug\SaveDirMyFileSend20170625.txt
D:\VSProject\SavaProcessToFile\SavaProcessToFile\bin\Debug\SaveDirMyFileSend20170626.txt
D:\VSProject\SavaProcessToFile\SavaProcessToFile\bin\Debug\SaveDirMyFileSend20170627.txt
D:\VSProject\SavaProcessToFile\SavaProcessToFile\bin\Debug\SaveDirMyFileSend20170628.txt
好了，不早了，今天就讲到这儿了；
本文源于zhuxiaoge(http://www.cnblogs.com/zhuxiaoge/p/7094513.html),如有转载请标明出处，不甚感激！！！
