从fileInfos中提取文件名

Question

我有FileInfo[] fileInfos 我想填充 使用LINQ表达式的string[] filesNames和List<string> fileNamesList，我应该怎么做？

Answer 1

FileInfo具有Name属性，因此

var fileNamesList = fileInfos.Select(fi => fi.Name).ToList();
var filesNames = fileInfos.Select(fi => fi.Name).ToArray();

我不明白你为什么同时需要List和数组。

Answer 2

var list = fileInfos.Select(fi => fi.Name).ToList();
var arr = fileInfos.Select(fi => fi.Name).ToArray();

Answer 3

List<string> filesNamesList = fileInfos.Select(fi => fi.Name).ToList();
string[] filesNames = filesNamesList.ToArray();

Answer 4

试试这段代码：

var fileList = fileInfos.Select(f => f.Name).ToList();