如何读取所有当前进程并在控制台中打印它们? / C# 控制台应用程序 System.Diagnostics

How can I read all current processes and print them in console? / C# ConsoleApp System.Diagnostics

我收到这个错误:

(我可以向检查员提供更多信息)

System.ComponentModel.Win32Exception: 'access denied'

The exception was originally generated in this call stack:

System.Diagnostics.ProcessManager.OpenProcess(int, int, bool)

System.Diagnostics.Process.GetProcessHandle(int, bool)

System.Diagnostics.Process.GetProcessTimes()

System.Diagnostics.Process.StartTime.get()

ConsoleApp1.Program.Main(string[]) on Program.cs

有代码:

(我从一开始就是 运行 这个程序的管理员)

正确答案是如何忽略异常,因为即使有管理员权限也无法读取某些进程而出现错误

using System.Diagnostics;


namespace ConsoleApp1
{
    
    
    class Program
    {
        public class Win32Exception : System.Runtime.InteropServices.ExternalException
        {

            static void Main(string[] args)
            {
                var moment = DateTime.Now;
                String rh = moment.Hour.ToString();
                String rm = moment.Minute.ToString();
                String rs = moment.Second.ToString();

                Console.Title = moment.ToString("HH:mm:ss");


                Process[] localAll = Process.GetProcesses();
                /// Process[] procesos;
                ///procesos = Process.GetProcesses();
                ///


                foreach (Process p in localAll)
                {
                    /// Console.WriteLine(p.ProcessName);
                    try
                    {
                        var tmp = p.StartTime;


                        String h = p.StartTime.ToString("HH");
                        String m = p.StartTime.ToString("mm");
                        String s = p.StartTime.ToString("ss");

                        int x = Int32.Parse(rh);
                        int y = Int32.Parse(h);


                        if (x <= y)
                        {
                            Console.WriteLine($"{p.ProcessName} TIME= {p.StartTime.ToString("HH:mm:ss")}");

                        }
                    }
                    catch (Win32Exception)
                    {
                        continue;
                    }
                }


                Console.ReadKey();
            }
        }
    }
}

你会尝试将 catch 异常替换为 Exception 吗?

catch (Exception)
   {
       continue;
   }

如果你想保持 Win32Exception 的另一种方法是将自定义异常的继承更改为

public class Win32Exception : System.ComponentModel.Win32Exception

您无需声明 class 继承 System.Runtime.InteropServices.ExternalException。您只需要使用 try...catch 来捕获异常 System.ComponentModel.Win32Exception。像这样修改代码即可。

class Program
{
    static void Main(string[] args)
    {
        // Code omitted
        // ...
        // Code omitted
        foreach (Process p in localAll)
        {
            try
            {
                // Code omitted
                // ...
                // Code omitted
            }
            catch (System.ComponentModel.Win32Exception)
            {
                continue;
            }
        }
        Console.ReadKey();
    }
}