本文介绍了Directory.GetFiles的一些扩展名的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
Directory.GetFiles 有没有办法简化这个linq表达式? (dir,*。*,SearchOption.AllDirectories) .Where(s => s.EndsWith(。jpg,StringComparison.OrdinalIgnoreCase)|| s.EndsWith(。gif ,StringComparison.OrdinalIgnoreCase)|| s.EndsWith(。png,StringComparison.OrdinalIgnoreCase)|| ...);
基本上我想返回一个特定扩展名的所有文件。不幸的是,这种方法不是很灵活。我希望能够添加一个列表的扩展名,并让Directory.GetFiles返回这些扩展名。这是可能的吗?
解决方案如果你想在LINQ中进行过滤,可以这样做:
var ext = new List< string> {jpg,gif,png}; var myFiles = Directory.GetFiles(dir,*。*,SearchOption.AllDirectories) .Where(s => ext.Contains(Path.GetExtension(s)))现在 ext 包含允许的扩展列表;您可以根据需要添加或删除项目以进行灵活过滤。
Is there a way to simplify this linq expression, or is there a better way of doing this?
Directory.GetFiles(dir, "*.*", SearchOption.AllDirectories) .Where(s => s.EndsWith(".jpg", StringComparison.OrdinalIgnoreCase) || s.EndsWith(".gif", StringComparison.OrdinalIgnoreCase) || s.EndsWith(".png", StringComparison.OrdinalIgnoreCase) || ...);Basically I want to return all files of a certain extension. Unfortunately, this method isn't very flexible. I'd rather be able to add extensions to a list and have Directory.GetFiles return those extensions. Is that possible?
解决方案If you would like to do your filtering in LINQ, you can do it like this:
var ext = new List<string> {"jpg", "gif", "png"}; var myFiles = Directory.GetFiles(dir, "*.*", SearchOption.AllDirectories) .Where(s => ext.Contains(Path.GetExtension(s)));Now ext contains a list of allowed extensions; you can add or remove items as necessary for flexible filtering.
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Directory.GetFiles的一些扩展名
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