在c＃代码中打开第二个创建的文件夹

Question

有没有办法访问第二个生成的文件夹？ 我试过了

var lastDirectory = new DirectoryInfo(path).GetDirectories("*",
    SearchOption.AllDirectories).OrderByDescending(x => x.LastWriteTimeUtc).Second();

但它没有用。

如果你能给我一个解决方案，我会很感激。

Answer 1

使用FirstOrDefault()跳过第一个元素，然后使用var lastDirectory = new DirectoryInfo(path).GetDirectories("*", SearchOption.AllDirectories).OrderByDescending(x => x.LastWriteTimeUtc) .Skip(1).FirstOrDefault(); 获取第二个元素，如果没有，则使用默认值

ElementAtOrDefault

或者您可以使用var lastDirectory = new DirectoryInfo(path).GetDirectories("*", SearchOption.AllDirectories).OrderByDescending(x => x.LastWriteTimeUtc) .ElementAtOrDefault(1); ：

{
"HiServiceInquiryResponse": {
    "CoverageInfoResponse": {
        "Participant": {
            "ns1:PersonalInfo": {
                "ns1:LastName": "AA",
                "ns1:Address": [
                    {
                        "ns1:Province": "",
                        "ns1:State": "CA",
                        "ns1:City": "LOS ANGELES",
                        "ns1:Country": "US",
                        "ns1:Address2": "",
                        "ns1:Address1": "test",
                        "ns1:PostalCode": 12345
                    },
                    {
                        "ns1:Province": "",
                        "ns1:State": "CA",
                        "ns1:City": "LOS ANGELES",
                        "ns1:Country": "US",
                        "ns1:Address2": "",
                        "ns1:Address1": "test",
                        "ns1:PostalCode": 12345
                    }
                ],
                "ns1:FirstName": "BB"
            },
            "ns1:Coverage": "",
            "ns1:HiClientId": 57,
            "ns1:Employment": {
                "ns1:EmployeeId": 1234,
                "ns1:TaxId": 111
            }
        }
    }
}