C# 操作线程的通用类[测试通过]

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Text;

/// <summary>
/// author:Stone_W
/// date:2010.12.20
/// desc:进程管理类
/// </summary>
public class ProcessUtility
{
    #region 进程的cpu使用率
    /// <summary>
    /// 进程的cpu使用率
    /// </summary>
    /// <param name="processName">进程的名称</param>
    /// <returns>string</returns>
    public static string GetProcessRate(string processName)
    {
        string result = String.Empty;
        try
        {
            PerformanceCounter pfc = new PerformanceCounter();      // 性能计数器
            pfc.CategoryName = "Process";                           // 指定获取计算机进程信息
            pfc.CounterName = "% Processor Time";                   // 占有率
            pfc.InstanceName = processName;                         // 指定进程   
            pfc.MachineName = ".";
            result = Math.Round(pfc.NextValue(), 2) + "%";
        }
        catch (Exception ex) { }
        return result;
    }
    #endregion

    #region 进程内存使用(单位：K)
    /// <summary>
    /// 进程内存使用(单位：K)
    /// </summary>
    /// <param name="pcs">进程实体</param>
    /// <returns>string</returns>
    public static string GetProcessDDR(Process pcs)
    {
        string result = String.Empty;
        try
        {
            result = (pcs.PrivateMemorySize / 1000.0).ToString();
        }
        catch (Exception ex) { }
        return result;
    }
    #endregion

    #region 关闭进程
    /// <summary>
    /// 关闭进程
    /// </summary>
    /// <param name="pName">进程的名称</param>
    /// <returns>bool</returns>
    public static bool StopProcessByPName(string pName)
    {
        bool result = false;
        if (!String.IsNullOrEmpty(pName))
        {
            try
            {
                Process[] myProcesses = Process.GetProcesses();
                foreach (System.Diagnostics.Process myProcess in myProcesses)
                {
                    if (myProcess.ProcessName.ToUpper() == pName.ToUpper().Trim())
                    {
                        myProcess.Kill();
                    }
                }
                result = true;
            }
            catch (Exception ex) { }
        }
        return result;

    }
    #endregion

    #region 重新启动进程
    /// <summary>
    /// 重新启动进程
    /// </summary>
    /// <param name="pName">进程名称</param>
    /// <returns>bool</returns>
    public static bool resetProcessByPName(string pName)
    {
        bool result = false;
        if (!String.IsNullOrEmpty(pName))
        {
            try
            {
                Process[] myProcesses;
                myProcesses = Process.GetProcessesByName(pName);
                foreach (Process myProcess in myProcesses)
                {
                    myProcess.Kill();
                }
                result = true;
            }
            catch (Exception ex) { }
        }
        return result;
    }
    #endregion
}