good version for 算法注册

backend/app/services/project_analyzer.py

@@ -63,22 +63,41 @@ class ProjectAnalyzer:
         Returns:
             项目类型，如 "python", "java", "nodejs" 等
         """
-        # 检查Python项目
+        # 检查Python项目 - 先检查根目录
         if os.path.exists(os.path.join(repo_path, "requirements.txt")) or \
            os.path.exists(os.path.join(repo_path, "pyproject.toml")) or \
            any(file.endswith(".py") for file in os.listdir(repo_path)):
             return "python"
         
-        # 检查Java项目
+        # 检查Python项目 - 递归检查子目录
+        for root, dirs, files in os.walk(repo_path):
+            if "requirements.txt" in files or "pyproject.toml" in files:
+                return "python"
+            if any(file.endswith(".py") for file in files):
+                return "python"
+        
+        # 检查Java项目 - 先检查根目录
         if os.path.exists(os.path.join(repo_path, "pom.xml")) or \
            os.path.exists(os.path.join(repo_path, "build.gradle")) or \
            os.path.exists(os.path.join(repo_path, "src")):
             return "java"
         
-        # 检查Node.js项目
+        # 检查Java项目 - 递归检查子目录
+        for root, dirs, files in os.walk(repo_path):
+            if "pom.xml" in files or "build.gradle" in files:
+                return "java"
+            if "src" in dirs:
+                return "java"
+        
+        # 检查Node.js项目 - 先检查根目录
         if os.path.exists(os.path.join(repo_path, "package.json")):
             return "nodejs"
         
+        # 检查Node.js项目 - 递归检查子目录
+        for root, dirs, files in os.walk(repo_path):
+            if "package.json" in files:
+                return "nodejs"
+        
         # 检查其他项目类型
         if os.path.exists(os.path.join(repo_path, "CMakeLists.txt")):
             return "c++"