如何在IronPython中对FileInfo列表进行排序

Given a list of FileInfo objects, how do I sort them by date? Specifically I want to sort them by CreationTime in descending order.

给定FileInfo对象列表，如何按日期对它们进行排序？具体来说，我想按CreationTime按降序对它们进行排序。

2 个解决方案

#1

The Pythonic way of doing this would be:

Pythonic这样做的方法是：

fileInfos = list(DirectoryInfo(path).GetFiles())
fileInfos.sort(key=lambda f: f.CreationTime, reverse=True)

The list sort method takes a key function that is used to get the sort key for each item.

列表排序方法采用一个键函数，用于获取每个项目的排序键。

#2

DirectoryInfo.GetFiles() returns an array of FileInfo objects. I created a generic list to hold the FileInfo objs, and sorted using a custom comparer.

DirectoryInfo.GetFiles（）返回FileInfo对象的数组。我创建了一个通用列表来保存FileInfo objs，并使用自定义比较器进行排序。

logDir = r"C:\temp"
fileInfosArray = DirectoryInfo(logDir).GetFiles("*.log")
fileInfosList = List[FileInfo]()
fileInfosList.AddRange(fileInfosArray)
fileInfosList.Sort(FileInfoCompareCreationTimeDesc)
for fileInfo in fileInfosList:
    print fileInfo.CreationTime, fileInfo.LastAccessTime, fileInfo.LastWriteTime, fileInfo.Name

# comparison delegate for FileInfo objects: sort by CreationTime Descending
def FileInfoCompareCreationTimeDesc(fileInfo1, fileInfo2):
    return fileInfo2.CreationTime.CompareTo(fileInfo1.CreationTime)

#1