diff --git a/base64EncodeUrl.py b/base64EncodeUrl.py
new file mode 100644
index 0000000..3ef68e1
--- /dev/null
+++ b/base64EncodeUrl.py
@@ -0,0 +1,40 @@
+import base64
+
+def generate_download_url(base_url: str, file_id: str, fullfilename: str, token: str) -> str:
+    """
+    生成下载 URL 并对其进行 Base64 编码
+    :param base_url: 文件下载的基础 URL
+    :param file_id: 文件的 ID
+    :param fullfilename: 文件的完整名称
+    :param token: 授权的 Token
+    :return: Base64 编码后的完整下载 URL
+    """
+    # 拼接完整的下载 URL
+    download_url = f"{base_url}/{file_id}?fullfilename={fullfilename}&token={token}"
+    print(f"Original URL: {download_url}")
+
+    # 对 URL 进行 Base64 编码
+    base64_encoded_url = base64.b64encode(download_url.encode("utf-8")).decode("utf-8")
+    print(f"Base64 Encoded URL: {base64_encoded_url}")
+
+    return base64_encoded_url
+
+
+# 示例数据
+pre_view_url = "http://192.168.1.12:8012/onlinePreview"
+download_url = "http://192.168.1.28:8080/prod-api/file/download"
+base_url = "http://192.168.1.28:8080/prod-api/file/download"
+file_id = "a69ea8e0f8e28f92202975a3a4996e7b"
+fullfilename = "文件预览.pptx"
+token = "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJ0ZW5hbnRfcm9sZV9rZXkiOiJzaHV6aXpob25neGluIiwidXNlcl9pZCI6IjEiLCJ1c2VyX25hbWUiOiJhZG1pbiIsInNjb3BlIjpbInNlcnZlciJdLCJleHAiOjE3MzUwMzIxMDMsImp0aSI6Ijl4Q3JrVDltXy1iZGh6czhKSWlrdkcySk5XcyIsImNsaWVudF9pZCI6IjFhN2JmY2M2MDI3NzRkNDk5NTkzNzU1MTFmYmIzYWYzIn0.T7jZ4bSmPqlwH2LjZeKLRXg_5Q4t7ihRUhd-zvdehak"
+
+# 生成 Base64 编码的 URL
+encoded_url = generate_download_url(base_url, file_id, fullfilename, token)
+
+# 拼接下载和预览 URL
+down_url = f"{download_url}/{file_id}"
+final_url = f"{pre_view_url}?url={encoded_url}"
+
+# 打印结果
+print(f"Download URL: {down_url}")
+print(f"Final Preview URL: {final_url}")
diff --git a/fastapiTest.py b/fastapiTest.py
new file mode 100644
index 0000000..b2b9d1d
--- /dev/null
+++ b/fastapiTest.py
@@ -0,0 +1,91 @@
+from fastapi import FastAPI, HTTPException, Response
+from minio import Minio
+from minio.error import S3Error
+from pydantic import BaseModel
+from datetime import timedelta
+
+app = FastAPI()
+
+# 初始化 MinIO 客户端
+minio_client = Minio(
+    endpoint="192.168.1.28:9500",  # MinIO 服务器地址
+    access_key="UIiBRvUixj3GkJwvItmy",  # Access Key
+    secret_key="wgIPqYxaNlDhUds0d3n5v57Yvzg3u9iUXplO7Kdm",  # Secret Key
+    secure=False  # 如果没有使用 HTTPS，则设置为 False
+)
+
+# MinIO 配置
+BUCKET_NAME = "test-bucket"
+
+
+class FileRequest(BaseModel):
+    object_name: str  # 文件对象名
+    expiry_in_seconds: int = 3600  # URL 有效期（默认 1 小时）
+
+
+@app.post("/download-presigned-url")
+def generate_presigned_url(file_request: FileRequest):
+    """
+    生成用于下载文件的预签名 URL
+    """
+    try:
+        # 检查存储桶是否存在
+        if not minio_client.bucket_exists(BUCKET_NAME):
+            raise HTTPException(status_code=404, detail=f"Bucket '{BUCKET_NAME}' does not exist.")
+
+        # 检查对象是否存在
+        try:
+            minio_client.stat_object(BUCKET_NAME, file_request.object_name)
+        except S3Error:
+            raise HTTPException(status_code=404, detail=f"Object '{file_request.object_name}' does not exist.")
+
+        # 将秒数转换为 timedelta
+        expiry_timedelta = timedelta(seconds=file_request.expiry_in_seconds)
+
+        # 生成预签名 URL
+        presigned_url = minio_client.presigned_get_object(
+            BUCKET_NAME,
+            file_request.object_name,
+            expires=expiry_timedelta  # 传递 timedelta
+        )
+        return {"presigned_url": presigned_url}
+
+    except S3Error as e:
+        raise HTTPException(status_code=500, detail=f"Error generating presigned URL: {e}")
+    except Exception as e:
+        raise HTTPException(status_code=500, detail=f"Unexpected error: {e}")
+
+
+@app.get("/download-file/{object_name:path}")
+def download_file(object_name: str):
+    """
+    提供文件对象并直接下载
+    """
+    try:
+        print(f"Requested object: {object_name}")
+
+        # 检查存储桶是否存在
+        if not minio_client.bucket_exists(BUCKET_NAME):
+            raise HTTPException(status_code=404, detail=f"Bucket '{BUCKET_NAME}' does not exist.")
+
+        # 检查对象是否存在
+        try:
+            stat = minio_client.stat_object(BUCKET_NAME, object_name)
+        except S3Error:
+            raise HTTPException(status_code=404, detail=f"Object '{object_name}' does not exist.")
+
+        # 获取文件对象
+        response = minio_client.get_object(BUCKET_NAME, object_name)
+
+        # 设置响应头
+        headers = {
+            "Content-Disposition": f"attachment; filename*=UTF-8''{object_name.split('/')[-1]}",
+            "Content-Type": stat.content_type
+        }
+        return Response(content=response.read(), headers=headers, media_type=stat.content_type)
+
+    except S3Error as e:
+        raise HTTPException(status_code=500, detail=f"Error downloading file: {e}")
+    except Exception as e:
+        raise HTTPException(status_code=500, detail=f"Unexpected error: {e}")
+
diff --git a/generaterCardId.py b/generaterCardId.py
new file mode 100644
index 0000000..562ea46
--- /dev/null
+++ b/generaterCardId.py
@@ -0,0 +1,28 @@
+import random
+
+def generateCardId(length):
+    """
+    生成指定长度的随机卡号
+    :param length: 卡号的长度
+    :return: 生成的随机卡号
+    """
+    if length <= 0:
+        raise ValueError("Length must be a positive integer.")
+
+    # 初始化卡号
+    card_id = ""
+    # 数字范围
+    numbers = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
+
+    # 生成随机卡号
+    for _ in range(length):
+        random_number = random.choice(numbers)
+        card_id += str(random_number)
+
+    return card_id
+
+# 测试函数
+if __name__ == "__main__":
+    length = 18  # 指定卡号长度
+    card_id = generateCardId(length)
+    print(f"Generated Card ID: {card_id}")
diff --git a/testUserMinioDownloadFile.py b/testUserMinioDownloadFile.py
new file mode 100644
index 0000000..1157a09
--- /dev/null
+++ b/testUserMinioDownloadFile.py
@@ -0,0 +1,58 @@
+from minio import Minio
+from minio.error import S3Error
+import mimetypes
+import os
+
+def download_file_from_minio(endpoint, access_key, secret_key, bucket_name, object_name):
+    try:
+        # 初始化 MinIO 客户端
+        minio_client = Minio(
+            endpoint=endpoint,
+            access_key=access_key,
+            secret_key=secret_key,
+            secure=False  # 如果 MinIO 没有使用 HTTPS，设置为 False
+        )
+
+        # 检查存储桶是否存在
+        if not minio_client.bucket_exists(bucket_name):
+            print(f"Bucket '{bucket_name}' does not exist.")
+            return
+
+        # 获取对象元数据
+        stat = minio_client.stat_object(bucket_name, object_name)
+        content_type = stat.content_type  # 获取 Content-Type
+        print(f"Object '{object_name}' Content-Type: {content_type}")
+
+        # 根据 Content-Type 确定文件后缀
+        guessed_extension = mimetypes.guess_extension(content_type)
+        if guessed_extension is None:
+            guessed_extension = ""  # 无法推断时默认不加后缀
+        print(f"Guessed file extension: {guessed_extension}")
+
+        # 提取文件名并设置保存路径
+        file_name = os.path.basename(object_name)  # 提取路径中的文件名
+        if "." not in file_name:  # 如果文件名中没有后缀，添加推断的后缀
+            file_name += guessed_extension
+        local_file_path = f"./{file_name}"  # 设置保存路径
+        print(f"File will be saved as: {local_file_path}")
+
+        # 下载文件
+        print(f"Downloading '{object_name}' from bucket '{bucket_name}' to '{local_file_path}'...")
+        minio_client.fget_object(bucket_name, object_name, local_file_path)
+
+        print(f"File '{object_name}' downloaded successfully to '{local_file_path}'.")
+
+    except S3Error as e:
+        print(f"Error occurred: {e}")
+    except Exception as e:
+        print(f"Unexpected error: {e}")
+
+# 示例配置
+endpoint = "192.168.1.28:9500"  # MinIO 服务器地址
+access_key = "UIiBRvUixj3GkJwvItmy"     # MinIO Access Key
+secret_key = "wgIPqYxaNlDhUds0d3n5v57Yvzg3u9iUXplO7Kdm"     # MinIO Secret Key
+bucket_name = "test-bucket"   # 存储桶名称
+object_name = "test/uploadedFiles/20241223/175_big.png"   # 不带后缀的文件名
+
+# 测试下载文件
+download_file_from_minio(endpoint, access_key, secret_key, bucket_name, object_name)