README.md

如何批量实现通过MP3标题重命名文件名

本文介绍对MP3格式进行重命名操作，首先通过文件属性获取MP3文件标题Title，然后用标题对文件名进行重命名。例子如下：

• 处理前：

• 处理后：

方法通过C#实现，共分两步：

• 通过ShellClass获得文件属性
• 以mp3文件的Title属性对其进行重命名

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通过ShellClass获得文件属性

1. 引用COM组件 Microsoft Shell Controls And Automation 需要注意： DLL的属性Embed Interop Type 设为False，否则会引起互操作类型异常
2. using Shell32
3. 具体代码：

//file--文件名；icol--属性索引
static string getMusicName(string file,int iCol)
{
     ShellClass sh = new ShellClass();
     Folder dir = sh.NameSpace(Path.GetDirectoryName(file));
     FolderItem item = dir.ParseName(Path.GetFileName(file));

     string str = dir.GetDetailsOf(item, iCol);

     return str;               
}

4.iCol 对应文件详细属性汇总

索引	属性名
0	Name
1	Size
2	Type
3	Date modified
4	Date created
5	Date accessed
6	Attributes
7	Offline status
8	Offline availability
9	Perceived type
10	Owner
11	Kinds
12	Date taken
13	Artists
14	Album
15	Year
16	Genre
17	Conductors
18	Tags
19	Rating
20	Authors
21	Title
22	Subject
23	Categories
24	Comments
25	Copyright
26	#
27	Length
28	Bit rate
29	Protected
30	Camera model
31	Dimensions
32	Camera maker
33	Company
34	File description
35	Program name
36	Duration
37	Is online
38	Is recurring
39	Location
40	Optional attendee addresses
41	Optional attendees
42	Organizer address
43	Organizer name
44	Reminder time
45	Required attendee addresses
46	Required attendees
47	Resources
48	Free/busy status
49	Total size
50	Account name
51	Computer
52	Anniversary
53	Assistant's name
54	Assistant's phone
55	Birthday
56	Business address
57	Business city
58	Business country/region
59	Business P.O. box
60	Business postal code
61	Business state or province
62	Business street
63	Business fax
64	Business home page
65	Business phone
66	Callback number
67	Car phone
68	Children
69	Company main phone
70	Department
71	E-mail Address
72	E-mail2
73	E-mail3
74	E-mail list
75	E-mail display name
76	File as
77	First name
78	Full name
79	Gender
80	Given name
81	Hobbies
82	Home address
83	Home city
84	Home country/region
85	Home P.O. box
86	Home postal code

以mp3文件的Title属性对其进行重命名

C#里面，重命名文件时，没有 rename 这个功能，使用的是FileInfo.MoveTo的方式，MoveTo 到原目录里一个新的名字，即实现了重命名。

基本代码：

static void renameFile(string dirName, string oldName, string newName)
{
    FileInfo fi = new FileInfo(dirName + oldName);
    fi.MoveTo(Path.Combine(dirName + newName));
}

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