删除带有最近日期的苍蝇 [英] Flies deletion with recent date

问题描述

我要删除文件夹中的1000多个txt文件...

我想删除所有文件，但要删除最近重新创建的5个文本文件..

I want to delete more than 1000 txt files in Folder...

and i want to delete all files but except recently recreated 5 text files..

推荐答案

可能您可以遍历文件，并根据以下每个文件使用以下功能无论您想设置什么时间

File.GetCreationTime(MSDN) [ ^ ]

这样可以节省您创建文件的时间，也可以使用您设置的删除时间与此进行比较.

Probably you can iterate through your files and use the function below for each file according to whatever time you want to set

File.GetCreationTime (MSDN)[^]

This gets you the time the file was created and you can use the time you have set for deletion to compare with this.

DirectoryInfo dinfo = new DirectoryInfo(@"D:\ c sharp and asp \ files);
FileInfo []文件= dinfo.GetFiles("*.pdf");
foreach(文件中的FileInfo文件)
{//File.GetCreationTime
如果(file.Exists)
{
System.DateTime dtToday = DateTime.Now;
TimeSpan tdDiff = dtToday-file.LastWriteTime;
int i = 0;
i = tdDiff.Days;

如果(i> 5)
{
file.Delete();

}
其他
{

}
}

我使用这种方式来使用TimeSpan，但是代码删除了所有文件，但最近5天除外..

但我需要最近创建的5个文件并删除较旧的日期文件...

DirectoryInfo dinfo = new DirectoryInfo(@"D:\c sharp and asp\files");
FileInfo[] Files = dinfo.GetFiles("*.pdf");
foreach (FileInfo file in Files)
{//File.GetCreationTime
if (file.Exists)
{
System.DateTime dtToday = DateTime.Now;
TimeSpan tdDiff=dtToday-file.LastWriteTime;
int i = 0;
i = tdDiff.Days;

if (i >5)
{
file.Delete();

}
else
{

}
}

I am using like this to using TimeSpan but is code delete all files but except recent 5 days files ..

but i need recently created 5 files and delete older date files...

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