C#网易云音乐播放器
效果图：
•实现教程：
打开VStudio 2015
#新建一个windows界面工程然后按我的界面来添加控件代码如下
namespace NeteaseMuisc {partial class Music{/// <summary>/// 必需的设计器变量。/// summary>private System.ComponentModel.IContainer components = null;/// <summary>/// 清理所有正在使用的资源。/// summary>/// <param name="disposing">如果应释放托管资源，为 true；否则为 false。param>protected override void Dispose(bool disposing){if (disposing && (components != null)){components.Dispose();}base.Dispose(disposing);}#region Windows 窗体设计器生成的代码/// <summary>/// 设计器支持所需的方法 - 不要修改/// 使用代码编辑器修改此方法的内容。/// summary>private void InitializeComponent(){System.ComponentModel.ComponentResourceManager resources = new System.ComponentModel.ComponentResourceManager(typeof(Music));this.list_message = new System.Windows.Forms.ListBox();this.music_play = new AxWMPLib.AxWindowsMediaPlayer();this.music_name_s = new System.Windows.Forms.TextBox();this.search = new System.Windows.Forms.Button();((System.ComponentModel.ISupportInitialize)(this.music_play)).BeginInit();this.SuspendLayout();// // list_message// this.list_message.FormattingEnabled = true;this.list_message.ItemHeight = 12;this.list_message.Location = new System.Drawing.Point(12, 48);this.list_message.Name = "list_message";this.list_message.ScrollAlwaysVisible = true;this.list_message.Size = new System.Drawing.Size(230, 256);this.list_message.TabIndex = 1;this.list_message.SelectedIndexChanged += new System.EventHandler(this.list_name_SelectedIndexChanged);this.list_message.DoubleClick += new System.EventHandler(this.list_name_DoubleClick);// // music_play// this.music_play.Enabled = true;this.music_play.Location = new System.Drawing.Point(12, 310);this.music_play.Name = "music_play";this.music_play.OcxState = ((System.Windows.Forms.AxHost.State)(resources.GetObject("music_play.OcxState")));this.music_play.Size = new System.Drawing.Size(230, 45);this.music_play.TabIndex = 2;// // music_name_s// this.music_name_s.Location = new System.Drawing.Point(12, 12);this.music_name_s.Name = "music_name_s";this.music_name_s.Size = new System.Drawing.Size(167, 21);this.music_name_s.TabIndex = 3;this.music_name_s.TextChanged += new System.EventHandler(this.textBox1_TextChanged);// // search// this.search.Location = new System.Drawing.Point(185, 12);this.search.Name = "search";this.search.Size = new System.Drawing.Size(57, 20);this.search.TabIndex = 4;this.search.Text = "search";this.search.UseVisualStyleBackColor = true;this.search.Click += new System.EventHandler(this.search_Click);// // Music// this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;this.ClientSize = new System.Drawing.Size(254, 364);this.Controls.Add(this.search);this.Controls.Add(this.music_name_s);this.Controls.Add(this.music_play);this.Controls.Add(this.list_message);this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedSingle;this.MaximizeBox = false;this.Name = "Music";this.Text = "Music";this.Load += new System.EventHandler(this.Form1_Load);((System.ComponentModel.ISupportInitialize)(this.music_play)).EndInit();this.ResumeLayout(false);this.PerformLayout();}#endregionprivate System.Windows.Forms.ListBox list_message;private AxWMPLib.AxWindowsMediaPlayer music_play;private System.Windows.Forms.TextBox music_name_s;private System.Windows.Forms.Button search;} }
------然后效果就是和上面图一样的了（有些事件监听是不要的）
之后是我们的cs代码：
using System; using System.Text.RegularExpressions; using System.Windows.Forms;namespace NeteaseMuisc {public partial class Music : Form{public Music(){InitializeComponent();}private void Form1_Load(object sender, EventArgs e){}private void list_name_SelectedIndexChanged(object sender, EventArgs e){}private void list_name_DoubleClick(object sender, EventArgs e)//双击列表的事件{
var address = new Regex("!(.*?)!");//这里的理解和下面一样MatchCollection matches_name = address.Matches(this.list_message.FocusedItem.SubItems[0].Text)foreach (Match m in matches_name){music_play.URL = string.Format("{0}", m.Groups[1].Value);//调用MediaPlayer播放获取到的链接
music_play.Ctlcontrols.play();}}private void textBox1_TextChanged(object sender, EventArgs e)//这个用不到{}private void search_Click(object sender, EventArgs e)//这里是搜索事件（核心）{list_message.Items.Clear();var api = new NeteaseMusicAPI();//这里用到下面的两个Classvar apires = api.Search(music_name_s.Text);//传入内容var songmessage = "";//搜到的歌的信息先弄一个varforeach (var song in apires.Result.Songs)//循环读取歌曲信息{songmessage += string.Format("@{0} - {1} !{2}! #", song.Name, song.Ar[0].Name, api.GetSongsUrl(new long[] { song.Id }).Data[0].Url);}//第一个数据是规则这里我引入两个符号方便读取之间的内容var web = new Regex("@(.*?)#");//读取规则@和#之间的内容MatchCollection matches_web = web.Matches(songmessage);foreach (Match m in matches_web)//循环读取内容{list_message.Items.Add(string.Format("{0}", m.Groups[1].Value));//添加到list中}}}}
上面是窗口的C#代码会自动生成的；]
然后我们要添加两个类不然会报错
第一个：NeteaseMusicAPI.csusing Newtonsoft.Json; using System; using System.Collections.Generic; using System.IO; using System.Linq; using System.Net; using System.Numerics; using System.Security.Cryptography; using System.Text;namespace NeteaseMuisc {class NeteaseMusicAPI{private string _MODULUS = "00e0b509f6259df8642dbc35662901477df22677ec152b5ff68ace615bb7b725152b3ab17a876aea8a5aa76d2e417629ec4ee341f56135fccf695280104e0312ecbda92557c93870114af6c9d05c4f7f0c3685b7a46bee255932575cce10b424d813cfe4875d3e82047b97ddef52741d546b8e289dc6935b3ece0462db0a22b8e7";private string _NONCE = "0CoJUm6Qyw8W8jud";private string _PUBKEY = "010001";private string _VI = "0102030405060708";private string _USERAGENT = "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 Safari/537.36";private string _COOKIE = "os=pc;osver=Microsoft-Windows-10-Professional-build-16299.125-64bit;appver=2.0.3.131777;channel=netease;__remember_me=true";private string _REFERER = "http://music.163.com/";// use keygen in c#private string _secretKey;private string _encSecKey;public NeteaseMusicAPI(){_secretKey = CreateSecretKey(16);_encSecKey = RSAEncode(_secretKey);}private string CreateSecretKey(int length){var str = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";var r = "";var rnd = new Random();for (int i = 0; i < length; i++){r += str[rnd.Next(0, str.Length)];}return r;}private Dictionary<string, string> Prepare(string raw){Dictionary<string, string> data = new Dictionary<string, string>();data["params"] = AESEncode(raw, _NONCE);data["params"] = AESEncode(data["params"], _secretKey);data["encSecKey"] = _encSecKey;return data;}// encrypt modprivate string RSAEncode(string text){string srtext = new string(text.Reverse().ToArray()); ;var a = BCHexDec(BitConverter.ToString(Encoding.Default.GetBytes(srtext)).Replace("-", ""));var b = BCHexDec(_PUBKEY);var c = BCHexDec(_MODULUS);var key = BigInteger.ModPow(a, b, c).ToString("x");key = key.PadLeft(256, '0');if (key.Length > 256)return key.Substring(key.Length - 256, 256);elsereturn key;}private BigInteger BCHexDec(string hex){BigInteger dec = new BigInteger(0);int len = hex.Length;for (int i = 0; i < len; i++){dec += BigInteger.Multiply(new BigInteger(Convert.ToInt32(hex[i].ToString(), 16)), BigInteger.Pow(new BigInteger(16), len - i - 1));}return dec;}private string AESEncode(string secretData, string secret = "TA3YiYCfY2dDJQgg"){byte[] encrypted;byte[] IV = Encoding.UTF8.GetBytes(_VI);using (var aes = Aes.Create()){aes.Key = Encoding.UTF8.GetBytes(secret);aes.IV = IV;aes.Mode = CipherMode.CBC;using (var encryptor = aes.CreateEncryptor()){using (var stream = new MemoryStream()){using (var cstream = new CryptoStream(stream, encryptor, CryptoStreamMode.Write)){using (var sw = new StreamWriter(cstream)){sw.Write(secretData);}encrypted = stream.ToArray();}}}}return Convert.ToBase64String(encrypted);}// fake curlprivate string CURL(string url, Dictionary<string, string> parms, string method = "POST"){string result;using (var wc = new WebClient()){wc.Headers.Add(HttpRequestHeader.ContentType, "application/x-www-form-urlencoded");wc.Headers.Add(HttpRequestHeader.Referer, _REFERER);wc.Headers.Add(HttpRequestHeader.UserAgent, _USERAGENT);wc.Headers.Add(HttpRequestHeader.Cookie, _COOKIE);var reqparm = new System.Collections.Specialized.NameValueCollection();foreach (var keyPair in parms){reqparm.Add(keyPair.Key, keyPair.Value);}byte[] responsebytes = wc.UploadValues(url, method, reqparm);result = Encoding.UTF8.GetString(responsebytes);}return result;}// api startprivate class SearchJson{public string s;public int type;public int limit;public string total = "true";public int offset;public string csrf_token = "";}public enum SearchType{Song = 1,Album = 10,Artist = 100,PlayList = 1000,User = 1002,Radio = 1009,}public SearchResult Search(string keyword, int limit = 30, int offset = 0, SearchType type = SearchType.Song){var url = "http://music.163.com/weapi/cloudsearch/get/web";var data = new SearchJson{s = keyword,type = (int)type,limit = limit,offset = offset,};string raw = CURL(url, Prepare(JsonConvert.SerializeObject(data)));var DeserialedObj = JsonConvert.DeserializeObject(raw);return DeserialedObj;}public ArtistResult Artist(long artist_id){var url = "http://music.163.com/weapi/v1/artist/" + artist_id.ToString() + "?csrf_token=";var data = new Dictionary<string, string>{{"csrf_token",""}};var raw = CURL(url, Prepare(JsonConvert.SerializeObject(data)));var deserialedObj = JsonConvert.DeserializeObject (raw);return deserialedObj;}public AlbumResult Album(long album_id){string url = "http://music.163.com/weapi/v1/album/" + album_id.ToString() + "?csrf_token=";var data = new Dictionary<string, string> {{ "csrf_token","" },};string raw = CURL(url, Prepare(JsonConvert.SerializeObject(data)));var deserialedObj = JsonConvert.DeserializeObject (raw);return deserialedObj;}public DetailResult Detail(long song_id){string url = "http://music.163.com/weapi/v3/song/detail?csrf_token=";var data = new Dictionary<string, string> {{ "c","[" + JsonConvert.SerializeObject(new Dictionary<string, string> { //神tm 加密的json里套json mdzz (说不定一次可以查多首歌?){ "id", song_id.ToString() }}) + "]"},{"csrf_token",""},};string raw = CURL(url, Prepare(JsonConvert.SerializeObject(data)));var deserialedObj = JsonConvert.DeserializeObject (raw);return deserialedObj;}private class GetSongUrlJson{public long[] ids;public long br;public string csrf_token = "";}public SongUrls GetSongsUrl(long[] song_id, long bitrate = 999000){string url = "http://music.163.com/weapi/song/enhance/player/url?csrf_token=";var data = new GetSongUrlJson{ids = song_id,br = bitrate};string raw = CURL(url, Prepare(JsonConvert.SerializeObject(data)));var deserialedObj = JsonConvert.DeserializeObject (raw);return deserialedObj;}public PlayListResult Playlist(long playlist_id){string url = "http://music.163.com/weapi/v3/playlist/detail?csrf_token=";var data = new Dictionary<string, string> {{ "id",playlist_id.ToString() },{ "n" , "1000" },{ "csrf_token" , "" },};string raw = CURL(url, Prepare(JsonConvert.SerializeObject(data)));var deserialedObj = JsonConvert.DeserializeObject (raw);return deserialedObj;}public LyricResult Lyric(long song_id){string url = "http://music.163.com/weapi/song/lyric?csrf_token=";var data = new Dictionary<string, string> {{ "id",song_id.ToString()},{ "os","pc" },{ "lv","-1" },{ "kv","-1" },{ "tv","-1" },{ "csrf_token","" }};string raw = CURL(url, Prepare(JsonConvert.SerializeObject(data)));var deserialedObj = JsonConvert.DeserializeObject (raw);return deserialedObj;}public MVResult MV(int mv_id){string url = "http://music.163.com/weapi/mv/detail?csrf_token=";var data = new Dictionary<string, string> {{ "id",mv_id.ToString() },{ "csrf_token","" },};string raw = CURL(url, Prepare(JsonConvert.SerializeObject(data)));var deserialedObj = JsonConvert.DeserializeObject (raw.Replace("\"720\"", "\"the720\"").Replace("\"480\"", "\"the480\"").Replace("\"240\"", "\"the240\"")); //不能解析数字key的解决方案return deserialedObj;}//static url encrypt, use for picpublic string Id2Url(int id){byte[] magic = Encoding.ASCII.GetBytes("3go8&8*3*3h0k(2)2");byte[] song_id = Encoding.ASCII.GetBytes(id.ToString());for (int i = 0; i < song_id.Length; i++)song_id[i] = Convert.ToByte(song_id[i] ^ magic[i % magic.Length]);string result;using (var md5 = MD5.Create()){md5.ComputeHash(song_id);result = Convert.ToBase64String(md5.Hash);}result = result.Replace("/", "_");result = result.Replace("+", "-");return result;}} }
第二个：Types.cs
using System; using System.Collections.Generic;namespace NeteaseMuisc {public class MVResult{public string LoadingPic { get; set; }public string BufferPic { get; set; }public string LoadingPicFs { get; set; }public string BufferPicFs { get; set; }public bool Subed { get; set; }public Data Data { get; set; }public long Code { get; set; }}public class Data{public long Id { get; set; }public string Name { get; set; }public long ArtistId { get; set; }public string ArtistName { get; set; }public string BriefDesc { get; set; }public string Desc { get; set; }public string Cover { get; set; }public long CoverId { get; set; }public long PlayCount { get; set; }public long SubCount { get; set; }public long ShareCount { get; set; }public long LikeCount { get; set; }public long CommentCount { get; set; }public long Duration { get; set; }public long NType { get; set; }public DateTime PublishTime { get; set; }public Brs Brs { get; set; }public Artist[] Artists { get; set; }public bool IsReward { get; set; }public string CommentThreadId { get; set; }}public class MVArtist{public long Id { get; set; }public string Name { get; set; }}public class Brs{public string The480 { get; set; }public string The240 { get; set; }public string The720 { get; set; }}public class LyricResult{public bool Sgc { get; set; }public bool Sfy { get; set; }public bool Qfy { get; set; }public LyricUser TransUser { get; set; }public LyricUser LyricUser { get; set; }public Lrc Lrc { get; set; }public Klyric Klyric { get; set; }public Lrc Tlyric { get; set; }public long Code { get; set; }}public class Klyric{public long Version { get; set; }}public class Lrc{public long Version { get; set; }public string Lyric { get; set; }}public class LyricUser{public long Id { get; set; }public long Status { get; set; }public long Demand { get; set; }public long Userid { get; set; }public string Nickname { get; set; }public long Uptime { get; set; }}public class SongUrls{public Datum[] Data { get; set; }public long Code { get; set; }}public class PlayListResult{public Playlist Playlist { get; set; }public long Code { get; set; }public Privilege[] Privileges { get; set; }}public class Playlist{public object[] Subscribers { get; set; }public bool Subscribed { get; set; }public User Creator { get; set; }public Track[] Tracks { get; set; }public TrackId[] TrackIds { get; set; }public long CoverImgId { get; set; }public long CreateTime { get; set; }public long UpdateTime { get; set; }public bool NewImported { get; set; }public long Privacy { get; set; }public long SpecialType { get; set; }public string CommentThreadId { get; set; }public long TrackUpdateTime { get; set; }public long TrackCount { get; set; }public bool HighQuality { get; set; }public long SubscribedCount { get; set; }public long CloudTrackCount { get; set; }public string CoverImgUrl { get; set; }public long PlayCount { get; set; }public long AdType { get; set; }public long TrackNumberUpdateTime { get; set; }public object Description { get; set; }public bool Ordered { get; set; }public object[] Tags { get; set; }public long Status { get; set; }public long UserId { get; set; }public string Name { get; set; }public long Id { get; set; }public long ShareCount { get; set; }public string CoverImgIdStr { get; set; }public long CommentCount { get; set; }}public class User{public bool DefaultAvatar { get; set; }public long Province { get; set; }public long AuthStatus { get; set; }public bool Followed { get; set; }public string AvatarUrl { get; set; }public long AccountStatus { get; set; }public long Gender { get; set; }public long City { get; set; }public long Birthday { get; set; }public long UserId { get; set; }public long UserType { get; set; }public string Nickname { get; set; }public string Signature { get; set; }public string Description { get; set; }public string DetailDescription { get; set; }public long AvatarImgId { get; set; }public long BackgroundImgId { get; set; }public string BackgroundUrl { get; set; }public long Authority { get; set; }public bool Mutual { get; set; }public object ExpertTags { get; set; }public object Experts { get; set; }public long DjStatus { get; set; }public long VipType { get; set; }public object RemarkName { get; set; }public string BackgroundImgIdStr { get; set; }public string AvatarImgIdStr { get; set; }}public class Track{public string Name { get; set; }public long Id { get; set; }public long Pst { get; set; }public long T { get; set; }public Ar[] Ar { get; set; }public string[] Alia { get; set; }public double Pop { get; set; }public long St { get; set; }public string Rt { get; set; }public long Fee { get; set; }public long V { get; set; }public string Crbt { get; set; }public string Cf { get; set; }public Al Al { get; set; }public long Dt { get; set; }public H H { get; set; }public H M { get; set; }public H L { get; set; }public object A { get; set; }public string Cd { get; set; }public long No { get; set; }public object RtUrl { get; set; }public long Ftype { get; set; }public object[] RtUrls { get; set; }public long DjId { get; set; }public long Copyright { get; set; }public long SId { get; set; }public long Mst { get; set; }public long Cp { get; set; }public long Mv { get; set; }public long Rtype { get; set; }public object Rurl { get; set; }public long PublishTime { get; set; }public string[] Tns { get; set; }}public class TrackId{public long Id { get; set; }public long V { get; set; }}public class Datum{public long Id { get; set; }public string Url { get; set; }public long Br { get; set; }public long Size { get; set; }public string Md5 { get; set; }public long Code { get; set; }public long Expi { get; set; }public string Type { get; set; }public double Gain { get; set; }public long Fee { get; set; }public object Uf { get; set; }public long Payed { get; set; }public long Flag { get; set; }public bool CanExtend { get; set; }}public class SearchResult{public SResult Result { get; set; }public long Code { get; set; }}public class ArtistResult{public long Code { get; set; }public Artist Artist { get; set; }public bool More { get; set; }public ListHotSongs { get; set; }}public class DetailResult{public Song[] Songs { get; set; }public Privilege[] Privileges { get; set; }public long Code { get; set; }}public class Artist{public long Img1V1Id { get; set; }public long TopicPerson { get; set; }public long PicId { get; set; }public object BriefDesc { get; set; }public long AlbumSize { get; set; }public string Img1V1Url { get; set; }public string PicUrl { get; set; }public List<string> Alias { get; set; }public string Trans { get; set; }public long MusicSize { get; set; }public string Name { get; set; }public long Id { get; set; }public long PublishTime { get; set; }public long MvSize { get; set; }public bool Followed { get; set; }}public class AlbumResult{public Song[] Songs { get; set; }public long Code { get; set; }public Album Album { get; set; }}public class Album{public object[] Songs { get; set; }public bool Paid { get; set; }public bool OnSale { get; set; }public long PicId { get; set; }public object[] Alias { get; set; }public string CommentThreadId { get; set; }public long PublishTime { get; set; }public string Company { get; set; }public long CopyrightId { get; set; }public string PicUrl { get; set; }public Artist Artist { get; set; }public object BriefDesc { get; set; }public string Tags { get; set; }public Artist[] Artists { get; set; }public long Status { get; set; }public object Description { get; set; }public object SubType { get; set; }public string BlurPicUrl { get; set; }public long CompanyId { get; set; }public long Pic { get; set; }public string Name { get; set; }public long Id { get; set; }public string Type { get; set; }public long Size { get; set; }public string PicIdStr { get; set; }public Info Info { get; set; }}public class Info{public CommentThread CommentThread { get; set; }public object LatestLikedUsers { get; set; }public bool Liked { get; set; }public object Comments { get; set; }public long ResourceType { get; set; }public long ResourceId { get; set; }public long CommentCount { get; set; }public long LikedCount { get; set; }public long ShareCount { get; set; }public string ThreadId { get; set; }}public class CommentThread{public string Id { get; set; }public ResourceInfo ResourceInfo { get; set; }public long ResourceType { get; set; }public long CommentCount { get; set; }public long LikedCount { get; set; }public long ShareCount { get; set; }public long HotCount { get; set; }public object LatestLikedUsers { get; set; }public long ResourceId { get; set; }public long ResourceOwnerId { get; set; }public string ResourceTitle { get; set; }}public class ResourceInfo{public long Id { get; set; }public long UserId { get; set; }public string Name { get; set; }public object ImgUrl { get; set; }public object Creator { get; set; }}public class HotSong{public List<object> RtUrls { get; set; }public List Ar { get; set; }public Al Al { get; set; }public long St { get; set; }public long Fee { get; set; }public long Ftype { get; set; }public long Rtype { get; set; }public object Rurl { get; set; }public long T { get; set; }public string Cd { get; set; }public long No { get; set; }public long V { get; set; }public object A { get; set; }public H M { get; set; }public long DjId { get; set; }public object Crbt { get; set; }public object RtUrl { get; set; }public List<object> Alia { get; set; }public long Pop { get; set; }public string Rt { get; set; }public long Mst { get; set; }public long Cp { get; set; }public string Cf { get; set; }public long Dt { get; set; }public long Pst { get; set; }public H H { get; set; }public H L { get; set; }public long Mv { get; set; }public string Name { get; set; }public long Id { get; set; }public Privilege Privilege { get; set; }}public class SResult{public List Songs { get; set; }public long SongCount { get; set; }}public class Song{public string Name { get; set; }public long Id { get; set; }public long Pst { get; set; }public long T { get; set; }public List Ar { get; set; }public List<object> Alia { get; set; }public long Pop { get; set; }public long St { get; set; }public string Rt { get; set; }public long Fee { get; set; }public long V { get; set; }public object Crbt { get; set; }public string Cf { get; set; }public Al Al { get; set; }public long Dt { get; set; }public H H { get; set; }public H M { get; set; }public H L { get; set; }public object A { get; set; }public string Cd { get; set; }public long No { get; set; }public object RtUrl { get; set; }public long Ftype { get; set; }public List<object> RtUrls { get; set; }public object Rurl { get; set; }public long Rtype { get; set; }public long Mst { get; set; }public long Cp { get; set; }public long Mv { get; set; }public long PublishTime { get; set; }public Privilege Privilege { get; set; }}public class Al{public long Id { get; set; }public string Name { get; set; }public string PicUrl { get; set; }public List<object> Tns { get; set; }public long Pic { get; set; }}public class Ar{public long Id { get; set; }public string Name { get; set; }public List<object> Tns { get; set; }public List<object> Alias { get; set; }}public class H{public long Br { get; set; }public long Fid { get; set; }public long Size { get; set; }public double Vd { get; set; }}public class Privilege{public long Id { get; set; }public long Fee { get; set; }public long Payed { get; set; }public long St { get; set; }public long Pl { get; set; }public long Dl { get; set; }public long Sp { get; set; }public long Cp { get; set; }public long Subp { get; set; }public bool Cs { get; set; }public long Maxbr { get; set; }public long Fl { get; set; }public bool Toast { get; set; }public long Flag { get; set; }
下面还有两个dll要添加，和一个MediaPlayer控件
dll下载：
https://files.cnblogs.com/files/Frank-dev-blog/Newtonsoft.Json.11.0.2.zip
https://files.cnblogs.com/files/Frank-dev-blog/system.numerics.dll.zip
MediaPlayer添加参考：https://www.cnblogs.com/chen-lhx/p/6394791.html很详细
--------转载请注明出处转载于:https://www.cnblogs.com/Frank-dev-blog/p/9406769.html
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