C# 如何获取磁盘剩余空间

using System;
using System.Management;

...

ManagementObject disk = new
ManagementObject("win32_logicaldisk.deviceid="c:"");
disk.Get();
Console.WriteLine("Logical Disk Size = " + disk["Size"] + " bytes");
Console.WriteLine("Logical Disk FreeSpace = " + disk["FreeSpace"] + "
bytes");

Drive Free Space

There are several ways to get the drive free space:

1. The interop way.

using System.Runtime.InteropServices;

[DllImport("kernel32.dll")]
public static extern bool GetDiskFreeSpaceEx(
string lpDirectoryName,
out UInt64 lpFreeBytesAvailable,
out UInt64 lpTotalNumberOfBytes,
out UInt64 lpTotalNumberOfFreeBytes);

ulong freeBytesAvailable = 0;
ulong totalNumberOfBytes = 0;
ulong totalNumberOfFreeBytes = 0;

GetD