Question

我正在使用Win32_OperatingSystem从System.Management返回一个值（我知道Microsoft.Management.Infrastructure，但我只是在做一些测试）。

这是我的跑步方式：

string bootTime = "";
//Creating a management searcher object
ManagementObjectSearcher mgmtObjSearcher = new ManagementObjectSearcher("SELECT LastBootUpTime FROM Win32_OperatingSystem");
//Collection to hold "results"
ManagementObjectCollection objCollection = mgmtObjSearcher.Get();
foreach (ManagementObject mgmtObject in objCollection)
{
    bootTime = mgmtObject["LastBootUpTime"].ToString();
}

但是当尝试运行Convert.ToDateTime(bootTime).ToString("dd/MM/yyyy hh:mm:ss");时，出现以下错误：

System.FormatException：'字符串未被识别为有效字符串日期时间。”

LastBootUpTime值似乎以20190703085750.500000+060的形式返回，我似乎无法使用Convert.ToDateTime进行转换，也无法使用DateTime.Parse

有人可以伸出援手让我知道我要去哪里了吗？我只想返回LastBootUpTime并转换特定的字符串格式（“ dd / MM / yyyy hh：mm：ss”）。非常感谢任何帮助:)

Answer 1

根据ŇɏssaPøngjǣrdenlarp和SonerGönül的评论，这就是我的结论：

string bootTime = "";
//Creating a management searcher object
ManagementObjectSearcher mgmtObjSearcher = new ManagementObjectSearcher("SELECT LastBootUpTime FROM Win32_OperatingSystem");
//Collection to hold "results"
ManagementObjectCollection objCollection = mgmtObjSearcher.Get();
foreach (ManagementObject mgmtObject in objCollection)
{
    bootTime = ManagementDateTimeConverter.ToDateTime(mgmtObject["LastBootUpTime"].ToString()).ToString("dd/MM/yyyy HH:mm:ss");
}

从LastBootUpTime返回的奇怪字符串

1 个答案: