2016学习笔记（一）

来源：互联网发布：推荐俄罗斯代购知乎编辑：程序博客网时间：2024/06/06 08:28

最近将自己这一年的资料进行整理，分享给大家！

1.U盘的driverinfo的属性。

using System;using System.IO;

class Test

{

public static void Main()

{

DriveInfo[] allDrives = DriveInfo.GetDrives();

foreach (DriveInfo d in allDrives)

{

Console.WriteLine("Drive {0}", d.Name);

Console.WriteLine(" Drive type: {0}", d.DriveType);

if (d.IsReady == true)//这里就是一个观察驱动是否准备好的，所以当设备要和PC进行通信时候，先要判断其是否已经准备好才能进行写号或者其他文件交流的功能。

{

Console.WriteLine(" Volume label: {0}", d.VolumeLabel);

Console.WriteLine(" File system: {0}", d.DriveFormat);

Console.WriteLine(

" Available space to current user:{0, 15} bytes",

d.AvailableFreeSpace);

Console.WriteLine(

" Total available space: {0, 15} bytes",

d.TotalFreeSpace);

Console.WriteLine(

" Total size of drive: {0, 15} bytes ",

d.TotalSize);

}

}/*

This code produces output similar to the following:

Drive A:\

Drive type: Removable

Drive C:\

Drive type: Fixed

Volume label:

File system: FAT32

Available space to current user: 4770430976 bytes

Total available space: 4770430976 bytes

Total size of drive: 10731683840 bytes

Drive D:\

Drive type: Fixed

Volume label:

File system: NTFS

Available space to current user: 15114977280 bytes

Total available space: 15114977280 bytes

Total size of drive: 25958948864 bytes

Drive E:\

Drive type: CDRom

The actual output of this code will vary based on machine and the permissions

granted to the user executing it.

2.string[]数组里面是存放string型的值，List<string>是存放string类型的对象。

3.C#读取U盘序列号

private List<string> _serialNumber = new List<string>();

/// <summary>
/// 调用这个函数将本机所有U盘序列号存储到_serialNumber中
/// </summary>
private void matchDriveLetterWithSerial()
{
    string[] diskArray;
    string driveNumber;
    var searcher = new ManagementObjectSearcher("SELECT * FROM Win32_LogicalDiskToPartition");
    foreach (ManagementObject dm in searcher.Get())
    {
        getValueInQuotes(dm["Dependent"].ToString());
        diskArray = getValueInQuotes(dm["Antecedent"].ToString()).Split(',');
        driveNumber = diskArray[0].Remove(0, 6).Trim();
        var disks = new ManagementObjectSearcher("SELECT * FROM Win32_DiskDrive");
        foreach (ManagementObject disk in disks.Get())
        {
            if (disk["Name"].ToString() == ("\\\\.\\PHYSICALDRIVE" + driveNumber) & disk["InterfaceType"].ToString() == "USB")
            {
                _serialNumber.Add(parseSerialFromDeviceID(disk["PNPDeviceID"].ToString()));
            }
        }
    }
}
private static string parseSerialFromDeviceID(string deviceId)
{
    var splitDeviceId = deviceId.Split('\\');
    var arrayLen = splitDeviceId.Length - 1;
    var serialArray = splitDeviceId[arrayLen].Split('&');
    var serial = serialArray[0];
    return serial;
}

private static string getValueInQuotes(string inValue)
{
    var posFoundStart = inValue.IndexOf("\"");
    var posFoundEnd = inValue.IndexOf("\"", posFoundStart + 1);
    var parsedValue = inValue.Substring(posFoundStart + 1, (posFoundEnd - posFoundStart) - 1);
    return parsedValue;
}

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