Add test.py with add_numbers function

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

requirements.txt

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+# CardioAI - 心血管疾病智能辅助系统
+# 环境配置说明:
+# 1. 创建conda虚拟环境:
+#    conda create -n cardioenv python=3.10
+# 2. 激活环境:
+#    conda activate cardioenv
+# 3. 安装依赖:
+#    pip install -r requirements.txt
+
+# 核心依赖
+pandas>=2.0.0
+openpyxl>=3.1.0
+numpy>=1.24.0
+scikit-learn>=1.3.0
+xgboost>=2.0.0
+joblib>=1.3.0
+
+# 可视化与Web框架
+streamlit>=1.28.0
+plotly>=5.17.0
+Flask>=2.3.0
+
+# 环境配置与AI
+python-dotenv>=1.0.0
+langchain-openai>=0.0.5
+dashscope>=1.14.0
+requests>=2.31.0

test.py

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+def add_numbers(a, b):
+    """返回两个数字的和"""
+    return a + b
+
+if __name__ == "__main__":
+    # 测试函数
+    result = add_numbers(3, 5)
+    print(f"3 + 5 = {result}")