C#取exe文件绝对路径

using System.Runtime.InteropServices;

#region
/// <summary>
/// 取exe文件绝对路径
/// </summary>
/// <param name="hModule"></param>
/// <param name="lpFileName"></param>
/// <param name="nSize"></param>
/// <returns></returns>
[DllImport("kernel32")]
public static extern int GetModuleFileName(IntPtr hModule, [Out] StringBuilder lpFileName,int nSize);
#endregion

#region
IntPtr processHandle = IntPtr.Zero;
StringBuilder exeFileNamestrB = new StringBuilder(260);
GetModuleFileName(processHandle, exeFileNamestrB, exeFileNamestrB.Capacity);
#endregion