增加编码格式脚本

Editor.meta

@@ -1,5 +1,5 @@
 fileFormatVersion: 2
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+guid: 58a464a068f414aec8460ef6071d9233
 folderAsset: yes
 DefaultImporter:
   externalObjects: {}

Editor/change.cs

@@ -0,0 +1,178 @@
+using UnityEngine;
+using UnityEditor;
+using System.IO;
+using System.Text;
+
+public class change
+{
+    // 添加一个右键菜单。
+    // % 按下ctrl时显示菜单。（Windows: control, macOS: command）
+    // & 按下alt时显示菜单。(Windows/Linux: alt, macOS: option)
+    // _ 按下shift时显示菜单。(Windows/Linux/macOS: shift)
+    [MenuItem("Assets/脚本改格式：GB2312->UTF8无BOM %g", false, 100)]
+    private static void CustomMenu()
+    {
+            Object[] selectedObjects = Selection.objects;
+            for(int i=0;i<selectedObjects.Length;i++)
+            {
+
+                // 例如: 获取Project视图中选定的对象
+                Object selectedObject = selectedObjects[i];
+                if (selectedObject != null)
+                {
+                    // 获取选定对象的相对路径
+                    string relativeAssetPath = AssetDatabase.GetAssetPath(selectedObject);
+                    // 获取项目根目录路径
+                    string projectPath = Path.GetDirectoryName(Application.dataPath);
+                    // 获取选定对象的绝对路径
+                    string absoluteAssetPath = Path.Combine(projectPath, relativeAssetPath);
+                    // 获取选定对象的文件名（包括后缀）
+                    string fileName = Path.GetFileName(relativeAssetPath);
+
+                    Debug.Log("执行自定义操作: " + selectedObject.name +
+                            ", 相对路径: " + relativeAssetPath +
+                            ", 绝对路径: " + absoluteAssetPath +
+                            ", 文件名: " + fileName);
+
+                    //判断是否是CSharp文件
+                    if (IsCSharpFile(fileName))
+                    {
+                        Debug.Log("这是一个csharp文件");
+                        ChangeFormat(absoluteAssetPath);
+                    }
+                    else
+                    {
+                        Debug.Log("兄弟，这不是一个csharp文件啊~~~~~~~~~~~");
+                    }
+                }
+            }
+    }
+
+    // 如果项目视图中有选中的对象，则启用右键菜单项
+    [MenuItem("Assets/脚本改格式：GB2312->UTF8无BOM %g", true)]
+    private static bool ValidateCustomMenu()
+    {
+        return Selection.activeObject != null;
+    }
+
+    /// <summary>
+    /// 判断该文件是否是CSharp文件
+    /// </summary>
+    /// <param name="fileName"></param>
+    /// <returns></returns>
+    private static bool IsCSharpFile(string fileName)
+    {
+        // 获取文件扩展名（包括点）
+        string fileExtension = Path.GetExtension(fileName);
+
+        // 将扩展名转换为小写并与 ".cs" 进行比较
+        if (fileExtension.ToLower() == ".cs")
+        {
+            return true;
+        }
+
+        return false;
+    }
+
+    /// <summary>
+    /// 文件格式转码：GB2312转成UTF8
+    /// 读取指定的文件，转换成UTF8（无BOM标记）格式后，回写覆盖原文件
+    /// </summary>
+    /// <param name="sourceFilePath">文件路径</param>
+    public static void ChangeFormat(string sourceFilePath)
+    {
+        Encoding ed =GetType(sourceFilePath);
+        
+        if( ed is System.Text.ASCIIEncoding )
+        {
+            ed =Encoding.GetEncoding("GB2312");
+            string fileContent = File.ReadAllText(sourceFilePath, ed);
+            File.WriteAllText(sourceFilePath, fileContent, Encoding.UTF8);
+        }
+        Debug.Log("处理结束！");
+    }
+    public static System.Text.Encoding GetType(string FILE_NAME)
+    {
+        FileStream fs = new FileStream(FILE_NAME, FileMode.Open, FileAccess.Read);
+        Encoding r = GetType(fs);
+        fs.Close();
+        return r;
+    }
+        /// <summary>
+    /// 通过给定的文件流，判断文件的编码类型
+    /// </summary>
+    /// <param name="fs">文件流</param>
+    /// <returns>文件的编码类型</returns>
+    public static System.Text.Encoding GetType(FileStream fs)
+    {
+        byte[] Unicode = new byte[] { 0xFF, 0xFE, 0x41 };
+        byte[] UnicodeBIG = new byte[] { 0xFE, 0xFF, 0x00 };
+        byte[] UTF8 = new byte[] { 0xEF, 0xBB, 0xBF }; //带BOM
+        Encoding reVal = Encoding.Default;
+ 
+        BinaryReader r = new BinaryReader(fs, System.Text.Encoding.Default);
+        int i;
+        int.TryParse(fs.Length.ToString(), out i);
+        byte[] ss = r.ReadBytes(i);
+        if (IsUTF8Bytes(ss) || (ss[0] == 0xEF && ss[1] == 0xBB && ss[2] == 0xBF))
+        {
+            reVal = Encoding.UTF8;
+        }
+        else if (ss[0] == 0xFE && ss[1] == 0xFF && ss[2] == 0x00)
+        {
+            reVal = Encoding.BigEndianUnicode;
+        }
+        else if (ss[0] == 0xFF && ss[1] == 0xFE && ss[2] == 0x41)
+        {
+            reVal = Encoding.Unicode;
+        }
+        r.Close();
+        return reVal;
+ 
+    }
+      /// <summary>
+    /// 判断是否是不带 BOM 的 UTF8 格式
+    /// </summary>
+    /// <param name="data"></param>
+    /// <returns></returns>
+    private static bool IsUTF8Bytes(byte[] data)
+    {
+        int charByteCounter = 1;
+        //计算当前正分析的字符应还有的字节数
+        byte curByte; //当前分析的字节.
+        for (int i = 0; i < data.Length; i++)
+        {
+            curByte = data[i];
+            if (charByteCounter == 1)
+            {
+                if (curByte >= 0x80)
+                {
+                    //判断当前
+                    while (((curByte <<= 1) & 0x80) != 0)
+                    {
+                        charByteCounter++;
+                    }
+                    //标记位首位若为非0 则至少以2个1开始 如:110XXXXX...........1111110X
+                    if (charByteCounter == 1 || charByteCounter > 6)
+                    {
+                        return false;
+                    }
+                }
+            }
+            else
+            {
+                //若是UTF-8 此时第一位必须为1
+                if ((curByte & 0xC0) != 0x80)
+                {
+                    return false;
+                }
+                charByteCounter--;
+            }
+        }
+        if (charByteCounter > 1)
+        {
+           // throw new Exception("非预期的byte格式");
+        }
+        return true;
+    }
+}

Editor/change.cs.meta

@@ -0,0 +1,11 @@
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