预制体重构项目升级教程及注意事项 ​

背景 ​

022版本需求，预制体中的脚本，材质实例和UI资源不会在单独存放在Prefab文件夹中，而是直接引用项目中的脚本，材质实例和UI资源

之前版本：

Project的中的Prefabs文件夹中会单独存放预制体有关的资源

022版本：

Prefab的资源会和项目中的资源共用，即每个预制体中不会再有Materials，UI和Scripts文件夹

影响 ​

工程内容中的预制体栏下不再显示除预制体以外的其他资源（引用关系还是在的）

升级脚本功能介绍 ​

1. 会将旧预制体（即Prefab和TempPrefabs文件夹中）中的脚本资源放到工程中的JavaScript目录下
2. 会将旧预制体（即Prefab和TempPrefabs文件夹中）中的ui资源放到工程中的UI目录下
3. 会将旧预制体（即Prefab和TempPrefabs文件夹中）中的材质实例资源放到工程中的Materials目录下
4. 修改预制体中脚本的import信息，保证工程在打开时不会出现因导包路径不正确的编译报错（开发者在使用prefab时import的脚本可能是预制体外的脚本或者工程中的脚本import了预制体中的脚本，移动了ts脚本的位置，import的路径可能就不正确了）
5. 修正ts.meta和ui.meta文件中Name字段与文件名不一致问题（不修正的话发布的时候会将这些文件给过滤掉）

刷脚本教程 ​

1. 将脚本文件或exe程序放在项目工程文件夹下

   

2. 打开命令行输入 python UpdatePrefabAsset.py

   

3. 等待程序跑完即可

   py

   import os
   os.system("pip install chardet")
   os.system("pip install json")
   import re
   import shutil
   import chardet
   import json
   Prefabs = "Prefabs"
   TempPrefabs = "TempPrefabs"
   AssetTypeArr = ["Materials", "JavaScripts", "UI"]                                                    
   def get_file_encoding(path):
       with open(path,"rb") as f:
           data = f.read()
           file_encoding = chardet.detect(data).get('encoding')
       return file_encoding
   
   def fileMove(PrefabName: str, PrefabDir: str, DestDir: str) -> bool:
       if DestDir == "JavaScripts":
           SouPrefabDir = os.path.join(PrefabDir, "Script")
       else:
           SouPrefabDir = os.path.join(PrefabDir, DestDir)
   
       if not os.path.exists(SouPrefabDir) or len(os.listdir(SouPrefabDir)) == 0:
           return True
       # 在对应资源目录下新建Prefabs目录
       DestPrefabsDir = os.path.join(DestDir, Prefabs, PrefabName)
       if "JavaScripts" in DestPrefabsDir:
           DestPrefabsDir = os.path.join(DestPrefabsDir,"Script")
       if not os.path.exists(DestPrefabsDir):
           os.makedirs(DestPrefabsDir)
   
       if os.path.exists(SouPrefabDir):
           filelist = os.listdir(SouPrefabDir)
           if DestDir == "UI":
               shutil.move(SouPrefabDir, DestPrefabsDir)
           else:
               for filename in filelist:
                   if os.path.exists(os.path.join(DestPrefabsDir, filename)):
                       print(f"Move Type {DestDir} exist {filename}" )
                       return False
                   shutil.move(os.path.join(SouPrefabDir, filename), DestPrefabsDir)
               shutil.rmtree(SouPrefabDir)
       return True
   
   def UpdatePrefab(TypePrefab: str) -> bool:
       IsUpdateSuccess = False
       if not os.path.exists(TypePrefab) or not os.path.isdir(TypePrefab):
           print(f"Update {TypePrefab} Error! Folder does not exist!")
           return IsUpdateSuccess
       PrefabNameList = os.listdir(TypePrefab)
       for PrefabName in PrefabNameList:
           PrefabPath = os.path.join(TypePrefab, PrefabName)
   
           if os.path.isdir(PrefabPath):
               JSPath = os.path.join(PrefabPath, "Script")
               MatPath = os.path.join(PrefabPath, "Materials")
               UIPath = os.path.join(PrefabPath, "UI")
   
               if not (os.path.exists(JSPath) or os.path.exists(MatPath) or os.path.exists(UIPath)):
                   PrefabPathList = os.listdir(PrefabPath)
                   for PrefabPathFile in PrefabPathList:
                       if PrefabPathFile.endswith('.prefab.meta') or PrefabPathFile.endswith('.prefab'):
                           continue
                       if os.path.isdir(os.path.join(PrefabPath, PrefabPathFile)):
                           shutil.rmtree(os.path.join(PrefabPath, PrefabPathFile))
                       else:
                           os.remove(os.path.join(PrefabPath, PrefabPathFile))
   
                   print(f"Update {PrefabPath}  Prefab is the latest format " )
                   continue
   
           if os.path.exists(PrefabPath) and os.path.isdir(PrefabPath):
               IsUpdateSuccess = fileMove(PrefabName, PrefabPath, "JavaScripts")
               if not IsUpdateSuccess:
                   print(f"Update {TypePrefab} JavaScripts Error!!!")
                   return False
               IsUpdateSuccess = fileMove(PrefabName, PrefabPath, "Materials")
               if not IsUpdateSuccess:
                   print(f"Update { TypePrefab} Materials Error!!!")
                   return False
               IsUpdateSuccess = fileMove(PrefabName, PrefabPath, "UI")
               if not IsUpdateSuccess:
                   print(f"Update {TypePrefab} UI Error!!!")
                   return False
               print(f"Update {PrefabPath} succeeded")
           else:
               continue
           # 删除Prefab中除了.prefab文件和.prefab.meta文件的其它文件
           InPrefabFileList = os.listdir(PrefabPath)
           for filename in InPrefabFileList:
               if not filename.endswith(".prefab") and not filename.endswith(".prefab.meta"):
                   InPrefabFilePath = os.path.join(PrefabPath, filename)
                   if os.path.isdir(InPrefabFilePath):
                       shutil.rmtree(InPrefabFilePath)
                   else:
                       os.remove(InPrefabFilePath)
       return True
   
   def GetImportPath(ScriptContent):
       import_list = re.findall('import\\s*.*?\\s*from?\\s*(\\\'\\S+?\\\'|\\\"\\S+?\\\")', ScriptContent)
       return import_list
   
   def GetAllPrefabScriptMap(Path):
       ScriptMap = {}
       for root, dirs, files in os.walk(Path):
           for filename in files:
               if filename.endswith(".ts"):
                   FilePath = os.path.join(root, filename)
                   encoding_format= get_file_encoding(FilePath)
                   with open(FilePath,"r",encoding=encoding_format) as f:
                       ScriptContent = f.read()
                       import_list = GetImportPath(ScriptContent)
                       if import_list:
                           import_list = [current_string.replace('"', '').replace("'","") for current_string in GetImportPath(ScriptContent)]
                           ScriptMap[FilePath] = import_list
       return ScriptMap
   
   def ConcatPath(scriptPath, importPath):
       back_level = importPath.count('../')
       for i in range(back_level + 1):
           scriptPath = os.path.dirname(scriptPath)
       currentImportPath = os.path.join(scriptPath, DealImportPath(importPath))
       return currentImportPath
   
   def GetAllScriptsPath(currentPath):
       AllScriptspath = []
       for root, dirs, files in os.walk(currentPath):
           for filename in files:
               if filename.endswith(".ts"):
                   AllScriptspath.append(os.path.join(root, filename))
       return AllScriptspath
   
   def DealImportPath(importInfo):
       result = importInfo.replace('../', '').replace('/', '\\') + '.ts'
       return result
   
   def CheckImportPath(ScriptMap, movedScriptPathList):
       pass_list = ['ue', 'puerts', 'module_gm', 'module_guide', 'module_ranking', 'odin']
       IssueScriptMap = {}
       for script in ScriptMap:
           importInfoDict = {}
           for importInfo in ScriptMap[script]:
               concatpath = ConcatPath(script, importInfo)
               if not os.path.exists(concatpath) and importInfo not in pass_list:
                   for movedScriptPath in movedScriptPathList:
                       if DealImportPath(importInfo).lower() in movedScriptPath.lower():
                           importInfoDict[importInfo] = concatpath.count('\\') - movedScriptPath.count('\\')
           if importInfoDict:
               IssueScriptMap[script] = importInfoDict
       return IssueScriptMap
   
   def ChangeImportInfo(IssueScriptMap):
       print(IssueScriptMap)
       for tsFilePath in IssueScriptMap:
           print(tsFilePath)
           print(IssueScriptMap[tsFilePath])
           encoding_format= get_file_encoding(tsFilePath)
           with open(tsFilePath, "r", encoding=encoding_format) as f:
               ScriptContent = f.read()
               for importInfo in IssueScriptMap[tsFilePath]:
                   newImportInfo = importInfo
                   for i in range(abs(IssueScriptMap[tsFilePath][importInfo])):
                       if IssueScriptMap[tsFilePath][importInfo] > 0:
                           newImportInfo = '../' + newImportInfo
                       else:
                           newImportInfo = newImportInfo.replace('../','',1)
                   if '../' not in newImportInfo:
                       newImportInfo = './' + newImportInfo
                   print(importInfo, newImportInfo)
                   if '"'+importInfo+'"' in ScriptContent:
                       ScriptContent = ScriptContent.replace('"'+importInfo+'"', '"'+newImportInfo+'"')
                   else:
                       ScriptContent = ScriptContent.replace("'"+importInfo+"'", "'"+newImportInfo+"'")
   
               with open(tsFilePath, 'w', encoding=encoding_format) as f:
                   f.write(ScriptContent)
   
   def FindAllUIPathInProject(ScriptContent):
       uiPathList = re.findall("\'/Prefabs.*\.ui\'|\"/Prefabs.*\.ui\"", ScriptContent)
       uiPathList = [uiPath.replace('"', '').replace("'","") for uiPath in uiPathList]
       return uiPathList
   
   def ChangesScriptUIPath(tsFilePath):
       for root, dirs, files in os.walk(tsFilePath):
           for filename in files:
               if filename.endswith(".ts"):
                   FilePath = os.path.join(root, filename)
                   encoding_format= get_file_encoding(FilePath)
                   with open(FilePath, "r", encoding=encoding_format) as f:
                       ScriptContent = f.read()
                       for uiPath in FindAllUIPathInProject(ScriptContent):
                           print(uiPath, '/UI' + uiPath)
                           ScriptContent = ScriptContent.replace(uiPath, '/UI' + uiPath)
                   with open(FilePath, 'w', encoding=encoding_format) as f:
                       f.write(ScriptContent)
   
   def compare_fileName_metaName(Path:str):
       if os.path.exists(Path) and os.path.isdir(Path):
           FileList = os.listdir(Path)
           for FileName in FileList:
               curPath = os.path.join(Path,FileName)
               if os.path.isdir(curPath):
                   compare_fileName_metaName(curPath)
               elif curPath.endswith(".ts.meta") or curPath.endswith(".ui.meta"):            
                   encoding_format= get_file_encoding(curPath)
                   try:
                       if os.path.exists(curPath):
                           with open(curPath,'r',encoding=encoding_format) as f:
                               metaData = json.load(f)
                               metaName = metaData["Name"]
                               fileBaseName = os.path.basename(curPath).split(".meta")[0]
                               if metaName != fileBaseName :
                                   print("Modify Meta Name ->>>  file path:{curPath}")
                                   metaData["Name"] = fileBaseName
                                   with open(curPath,'w',encoding=encoding_format) as w:
                                       json.dump(metaData,w)
                   except json.decoder.JSONDecodeError:
                       print(f"Error {curPath}")
   if __name__ == '__main__':
       compare_fileName_metaName(Prefabs)
       compare_fileName_metaName(TempPrefabs)
   
   
       currentProjectPath = os.getcwd()
       JavaScriptPath = os.path.join(currentProjectPath, AssetTypeArr[1]) 
   
       IsUpdateSuccess = False
       IsUpdateSuccess = UpdatePrefab(TempPrefabs)
       if IsUpdateSuccess:
           print("TempPrefabs Asset Update Success!!!")
       IsUpdateSuccess = UpdatePrefab(Prefabs)
       if IsUpdateSuccess:
           print("Prefabs Asset Update Success!!!")
   
       movedScriptPathList = GetAllScriptsPath(JavaScriptPath)
       ScriptMap = GetAllPrefabScriptMap(JavaScriptPath)
   
       print('============================================')
       issueScriptMap = CheckImportPath(ScriptMap, movedScriptPathList)
       ChangeImportInfo(issueScriptMap)
       ChangesScriptUIPath(JavaScriptPath)

   import os
   os.system("pip install chardet")
   os.system("pip install json")
   import re
   import shutil
   import chardet
   import json
   Prefabs = "Prefabs"
   TempPrefabs = "TempPrefabs"
   AssetTypeArr = ["Materials", "JavaScripts", "UI"]                                                    
   def get_file_encoding(path):
       with open(path,"rb") as f:
           data = f.read()
           file_encoding = chardet.detect(data).get('encoding')
       return file_encoding
   
   def fileMove(PrefabName: str, PrefabDir: str, DestDir: str) -> bool:
       if DestDir == "JavaScripts":
           SouPrefabDir = os.path.join(PrefabDir, "Script")
       else:
           SouPrefabDir = os.path.join(PrefabDir, DestDir)
   
       if not os.path.exists(SouPrefabDir) or len(os.listdir(SouPrefabDir)) == 0:
           return True
       # 在对应资源目录下新建Prefabs目录
       DestPrefabsDir = os.path.join(DestDir, Prefabs, PrefabName)
       if "JavaScripts" in DestPrefabsDir:
           DestPrefabsDir = os.path.join(DestPrefabsDir,"Script")
       if not os.path.exists(DestPrefabsDir):
           os.makedirs(DestPrefabsDir)
   
       if os.path.exists(SouPrefabDir):
           filelist = os.listdir(SouPrefabDir)
           if DestDir == "UI":
               shutil.move(SouPrefabDir, DestPrefabsDir)
           else:
               for filename in filelist:
                   if os.path.exists(os.path.join(DestPrefabsDir, filename)):
                       print(f"Move Type {DestDir} exist {filename}" )
                       return False
                   shutil.move(os.path.join(SouPrefabDir, filename), DestPrefabsDir)
               shutil.rmtree(SouPrefabDir)
       return True
   
   def UpdatePrefab(TypePrefab: str) -> bool:
       IsUpdateSuccess = False
       if not os.path.exists(TypePrefab) or not os.path.isdir(TypePrefab):
           print(f"Update {TypePrefab} Error! Folder does not exist!")
           return IsUpdateSuccess
       PrefabNameList = os.listdir(TypePrefab)
       for PrefabName in PrefabNameList:
           PrefabPath = os.path.join(TypePrefab, PrefabName)
   
           if os.path.isdir(PrefabPath):
               JSPath = os.path.join(PrefabPath, "Script")
               MatPath = os.path.join(PrefabPath, "Materials")
               UIPath = os.path.join(PrefabPath, "UI")
   
               if not (os.path.exists(JSPath) or os.path.exists(MatPath) or os.path.exists(UIPath)):
                   PrefabPathList = os.listdir(PrefabPath)
                   for PrefabPathFile in PrefabPathList:
                       if PrefabPathFile.endswith('.prefab.meta') or PrefabPathFile.endswith('.prefab'):
                           continue
                       if os.path.isdir(os.path.join(PrefabPath, PrefabPathFile)):
                           shutil.rmtree(os.path.join(PrefabPath, PrefabPathFile))
                       else:
                           os.remove(os.path.join(PrefabPath, PrefabPathFile))
   
                   print(f"Update {PrefabPath}  Prefab is the latest format " )
                   continue
   
           if os.path.exists(PrefabPath) and os.path.isdir(PrefabPath):
               IsUpdateSuccess = fileMove(PrefabName, PrefabPath, "JavaScripts")
               if not IsUpdateSuccess:
                   print(f"Update {TypePrefab} JavaScripts Error!!!")
                   return False
               IsUpdateSuccess = fileMove(PrefabName, PrefabPath, "Materials")
               if not IsUpdateSuccess:
                   print(f"Update { TypePrefab} Materials Error!!!")
                   return False
               IsUpdateSuccess = fileMove(PrefabName, PrefabPath, "UI")
               if not IsUpdateSuccess:
                   print(f"Update {TypePrefab} UI Error!!!")
                   return False
               print(f"Update {PrefabPath} succeeded")
           else:
               continue
           # 删除Prefab中除了.prefab文件和.prefab.meta文件的其它文件
           InPrefabFileList = os.listdir(PrefabPath)
           for filename in InPrefabFileList:
               if not filename.endswith(".prefab") and not filename.endswith(".prefab.meta"):
                   InPrefabFilePath = os.path.join(PrefabPath, filename)
                   if os.path.isdir(InPrefabFilePath):
                       shutil.rmtree(InPrefabFilePath)
                   else:
                       os.remove(InPrefabFilePath)
       return True
   
   def GetImportPath(ScriptContent):
       import_list = re.findall('import\\s*.*?\\s*from?\\s*(\\\'\\S+?\\\'|\\\"\\S+?\\\")', ScriptContent)
       return import_list
   
   def GetAllPrefabScriptMap(Path):
       ScriptMap = {}
       for root, dirs, files in os.walk(Path):
           for filename in files:
               if filename.endswith(".ts"):
                   FilePath = os.path.join(root, filename)
                   encoding_format= get_file_encoding(FilePath)
                   with open(FilePath,"r",encoding=encoding_format) as f:
                       ScriptContent = f.read()
                       import_list = GetImportPath(ScriptContent)
                       if import_list:
                           import_list = [current_string.replace('"', '').replace("'","") for current_string in GetImportPath(ScriptContent)]
                           ScriptMap[FilePath] = import_list
       return ScriptMap
   
   def ConcatPath(scriptPath, importPath):
       back_level = importPath.count('../')
       for i in range(back_level + 1):
           scriptPath = os.path.dirname(scriptPath)
       currentImportPath = os.path.join(scriptPath, DealImportPath(importPath))
       return currentImportPath
   
   def GetAllScriptsPath(currentPath):
       AllScriptspath = []
       for root, dirs, files in os.walk(currentPath):
           for filename in files:
               if filename.endswith(".ts"):
                   AllScriptspath.append(os.path.join(root, filename))
       return AllScriptspath
   
   def DealImportPath(importInfo):
       result = importInfo.replace('../', '').replace('/', '\\') + '.ts'
       return result
   
   def CheckImportPath(ScriptMap, movedScriptPathList):
       pass_list = ['ue', 'puerts', 'module_gm', 'module_guide', 'module_ranking', 'odin']
       IssueScriptMap = {}
       for script in ScriptMap:
           importInfoDict = {}
           for importInfo in ScriptMap[script]:
               concatpath = ConcatPath(script, importInfo)
               if not os.path.exists(concatpath) and importInfo not in pass_list:
                   for movedScriptPath in movedScriptPathList:
                       if DealImportPath(importInfo).lower() in movedScriptPath.lower():
                           importInfoDict[importInfo] = concatpath.count('\\') - movedScriptPath.count('\\')
           if importInfoDict:
               IssueScriptMap[script] = importInfoDict
       return IssueScriptMap
   
   def ChangeImportInfo(IssueScriptMap):
       print(IssueScriptMap)
       for tsFilePath in IssueScriptMap:
           print(tsFilePath)
           print(IssueScriptMap[tsFilePath])
           encoding_format= get_file_encoding(tsFilePath)
           with open(tsFilePath, "r", encoding=encoding_format) as f:
               ScriptContent = f.read()
               for importInfo in IssueScriptMap[tsFilePath]:
                   newImportInfo = importInfo
                   for i in range(abs(IssueScriptMap[tsFilePath][importInfo])):
                       if IssueScriptMap[tsFilePath][importInfo] > 0:
                           newImportInfo = '../' + newImportInfo
                       else:
                           newImportInfo = newImportInfo.replace('../','',1)
                   if '../' not in newImportInfo:
                       newImportInfo = './' + newImportInfo
                   print(importInfo, newImportInfo)
                   if '"'+importInfo+'"' in ScriptContent:
                       ScriptContent = ScriptContent.replace('"'+importInfo+'"', '"'+newImportInfo+'"')
                   else:
                       ScriptContent = ScriptContent.replace("'"+importInfo+"'", "'"+newImportInfo+"'")
   
               with open(tsFilePath, 'w', encoding=encoding_format) as f:
                   f.write(ScriptContent)
   
   def FindAllUIPathInProject(ScriptContent):
       uiPathList = re.findall("\'/Prefabs.*\.ui\'|\"/Prefabs.*\.ui\"", ScriptContent)
       uiPathList = [uiPath.replace('"', '').replace("'","") for uiPath in uiPathList]
       return uiPathList
   
   def ChangesScriptUIPath(tsFilePath):
       for root, dirs, files in os.walk(tsFilePath):
           for filename in files:
               if filename.endswith(".ts"):
                   FilePath = os.path.join(root, filename)
                   encoding_format= get_file_encoding(FilePath)
                   with open(FilePath, "r", encoding=encoding_format) as f:
                       ScriptContent = f.read()
                       for uiPath in FindAllUIPathInProject(ScriptContent):
                           print(uiPath, '/UI' + uiPath)
                           ScriptContent = ScriptContent.replace(uiPath, '/UI' + uiPath)
                   with open(FilePath, 'w', encoding=encoding_format) as f:
                       f.write(ScriptContent)
   
   def compare_fileName_metaName(Path:str):
       if os.path.exists(Path) and os.path.isdir(Path):
           FileList = os.listdir(Path)
           for FileName in FileList:
               curPath = os.path.join(Path,FileName)
               if os.path.isdir(curPath):
                   compare_fileName_metaName(curPath)
               elif curPath.endswith(".ts.meta") or curPath.endswith(".ui.meta"):            
                   encoding_format= get_file_encoding(curPath)
                   try:
                       if os.path.exists(curPath):
                           with open(curPath,'r',encoding=encoding_format) as f:
                               metaData = json.load(f)
                               metaName = metaData["Name"]
                               fileBaseName = os.path.basename(curPath).split(".meta")[0]
                               if metaName != fileBaseName :
                                   print("Modify Meta Name ->>>  file path:{curPath}")
                                   metaData["Name"] = fileBaseName
                                   with open(curPath,'w',encoding=encoding_format) as w:
                                       json.dump(metaData,w)
                   except json.decoder.JSONDecodeError:
                       print(f"Error {curPath}")
   if __name__ == '__main__':
       compare_fileName_metaName(Prefabs)
       compare_fileName_metaName(TempPrefabs)
   
   
       currentProjectPath = os.getcwd()
       JavaScriptPath = os.path.join(currentProjectPath, AssetTypeArr[1]) 
   
       IsUpdateSuccess = False
       IsUpdateSuccess = UpdatePrefab(TempPrefabs)
       if IsUpdateSuccess:
           print("TempPrefabs Asset Update Success!!!")
       IsUpdateSuccess = UpdatePrefab(Prefabs)
       if IsUpdateSuccess:
           print("Prefabs Asset Update Success!!!")
   
       movedScriptPathList = GetAllScriptsPath(JavaScriptPath)
       ScriptMap = GetAllPrefabScriptMap(JavaScriptPath)
   
       print('============================================')
       issueScriptMap = CheckImportPath(ScriptMap, movedScriptPathList)
       ChangeImportInfo(issueScriptMap)
       ChangesScriptUIPath(JavaScriptPath)

UpdatePrefabAsset.exe

也可以把这上边这个exe放在项目文件夹中双击执行升级项目

注意事项 ​

1. 脚本中如果的import路径和脚本文件的存放路径大小写不一致，在导出预制体时，该脚本文件依赖不会被导出。例：

   1. 脚本中的import信息为：import MGS from ../JavaScript/Module/MGS/MGs

   2. 脚本在PC中的存放路径为：JavaScript\Module\MGS\MGS.ts

   3. MGS.ts 文件就不会被找到因为大小写不一致，请在书写import信息时保持正确的规范

2. 预制体中脚本含有吸管自定义属性，在解除预制体时，吸管所吸附的guid不会随之改变，需要开发者自己重新捕获

3. 工程内容中有文件夹且文件夹中有预制体并在场景中引用了，删除文件夹时，不会提供解除预制选项

   

   

4. 导入旧的预制体到新的编辑器时，如果import的路径还是原来的，请务必根据新的路径，重新修改import信息

5. 关于重复刷脚本问题

   1. 该脚本不支持重复刷，脚本逻辑中会检测如果项目下的JavaScript，Materials和UI文件夹中含有Prefabs文件时就会判定该项目已被升级过

      

      脚本中也会出现报错字样

   2. 如果刷错了要怎么重新刷

      1. 建议刷之前备份出一个原工程
      2. 如果使用git回退请注意！！！
         1. git在回退时不会删除创建出来的文件夹
         2. 需要手动查看JavaScript，UI 和Materials文件夹中是否含有Prefabs文件夹
         3. 如果保留了目录结构，请手动删除JavaScript、UI 和Materials文件夹下的Prefabs文件夹（如果无法删除，请关闭编辑器）

   3. 如果有大量老的预制体需要升级，可以新建一个工程并执行升级脚本或exe程序，然后把生成出来的内容拷贝到正在开发的项目里，避免开发项目混乱