diff --git a/doc/README_app_en.md b/doc/README_app_en.md
index d24eab1..4a69b6d 100644
--- a/doc/README_app_en.md
+++ b/doc/README_app_en.md
@@ -4,7 +4,7 @@
 
 /request_node
 get method
-pr  
+  
 
 
 docker run -it -p 8000:8000 -p 8001:8001 -p 8002:8002 -v ~/mimajingsai:/app -e HOST_IP=110.41.130.197 git.mamahaha.work/sangge/tpre:base bash  
diff --git a/src/client.py b/src/client.py
index 012d1dd..85a5634 100644
--- a/src/client.py
+++ b/src/client.py
@@ -95,6 +95,7 @@ def clean_env():
     with sqlite3.connect("client.db") as db:
         db.execute("DELETE FROM node")
         db.execute("DELETE FROM message")
+        db.execute("DELETE FROM senderinfo")
         db.commit()
     print("Exit app")
 
@@ -121,8 +122,10 @@ async def receive_messages(message: C):
     return:
     status_code
     """
+    print(f"Received message: {message}")
 
     if not message.Tuple or not message.ip:
+        print("Invalid input data received.")
         raise HTTPException(status_code=400, detail="Invalid input data")
 
     C_capsule, C_ct = message.Tuple
@@ -144,6 +147,7 @@ async def receive_messages(message: C):
                 (bin_C_capsule, str(C_ct), ip),
             )
             db.commit()
+            print("Data inserted successfully into database.")
             check_merge(C_ct, ip)
             return HTTPException(status_code=200, detail="Message received")
         except Exception as e:
@@ -211,7 +215,7 @@ def check_merge(ct: int, ip: str):
 
         print("merge success", message)
         node_response = True
-        
+
         print("merge:", node_response)
 
 
@@ -230,11 +234,13 @@ async def send_messages(
         for i in range(4):
             id += int(ip_parts[i]) << (24 - (8 * i))
         id_list.append(id)
+    print(f"Calculated IDs: {id_list}")
     # generate rk
     rk_list = GenerateReKey(sk, pk_B, len(node_ips), shreshold, tuple(id_list))  # type: ignore
-
+    print(f"Generated ReKey list: {rk_list}")
     capsule, ct = Encrypt(pk, message)  # type: ignore
     # capsule_ct = (capsule, int.from_bytes(ct))
+    print(f"Encrypted message to capsule={capsule}, ct={ct}")
 
     for i in range(len(node_ips)):
         url = "http://" + node_ips[i][0] + ":8001" + "/user_src"
@@ -245,11 +251,15 @@ async def send_messages(
             "ct": int.from_bytes(ct),
             "rk": rk_list[i],
         }
-        print(json.dumps(payload))
+        print(f"Sending payload to {url}: {json.dumps(payload)}")
         response = requests.post(url, json=payload)
 
         if response.status_code == 200:
             print(f"send to {node_ips[i]} successful")
+        else:
+            print(
+                f"Failed to send to {node_ips[i]}. Response code: {response.status_code}, Response text: {response.text}"
+            )
     return 0
 
 
@@ -269,6 +279,9 @@ class Request_Message(BaseModel):
 @app.post("/request_message")
 async def request_message(i_m: Request_Message):
     global message, node_response, pk
+    print(
+        f"Function 'request_message' called with: dest_ip={i_m.dest_ip}, message_name={i_m.message_name}"
+    )
     dest_ip = i_m.dest_ip
     # dest_ip = dest_ip.split(":")[0]
     message_name = i_m.message_name
@@ -281,21 +294,25 @@ async def request_message(i_m: Request_Message):
         "source_ip": source_ip,
         "pk": pk,
     }
+    print(f"Sending request to {url} with payload: {payload}")
     try:
         response = requests.post(url, json=payload, timeout=1)
+        print(f"Response received from {url}: {response.text}")
         # print("menxian and pk", response.text)
 
     except requests.Timeout:
-        print("can't post")
+        print("Timeout error: can't post to the destination.")
+        # print("can't post")
         # content = {"message": "post timeout", "error": str(e)}
         # return JSONResponse(content, status_code=400)
 
     # wait 3s to receive message from nodes
     for _ in range(10):
-        print("wait:", node_response)
+        print(f"Waiting for node_response... Current value: {node_response}")
+        # print("wait:", node_response)
         if node_response:
             data = message
-            
+            print(f"Node response received with message: {data}")
             # reset message and node_response
             message = b""
             node_response = False
@@ -303,6 +320,7 @@ async def request_message(i_m: Request_Message):
             # return message to frontend
             return {"message": str(data)}
         await asyncio.sleep(0.2)
+    print("Timeout while waiting for node_response.")
     content = {"message": "receive timeout"}
     return JSONResponse(content, status_code=400)
 
@@ -311,14 +329,20 @@ async def request_message(i_m: Request_Message):
 @app.post("/receive_request")
 async def receive_request(i_m: IP_Message):
     global pk
+    print(
+        f"Function 'receive_request' called with: dest_ip={i_m.dest_ip}, source_ip={i_m.source_ip}, pk={i_m.pk}"
+    )
     source_ip = get_own_ip()
+    print(f"Own IP: {source_ip}")
     if source_ip != i_m.dest_ip:
+        print("Mismatch in destination IP.")
         return HTTPException(status_code=400, detail="Wrong ip")
     dest_ip = i_m.source_ip
     # threshold = random.randrange(1, 2)
     threshold = 2
     own_public_key = pk
     pk_B = i_m.pk
+    print(f"Using own public key: {own_public_key} and received public key: {pk_B}")
 
     with sqlite3.connect("client.db") as db:
         cursor = db.execute(
@@ -330,16 +354,18 @@ async def receive_request(i_m: IP_Message):
             (threshold,),
         )
         node_ips = cursor.fetchall()
+    print(f"Selected node IPs from database: {node_ips}")
 
     # message name
     # message_name = i_m.message_name
     # message = xxxxx
     message = b"hello world" + random.randbytes(8)
+    print(f"Generated message: {message}")
 
     # send message to nodes
     await send_messages(tuple(node_ips), message, dest_ip, pk_B, threshold)
     response = {"threshold": threshold, "public_key": own_public_key}
-    print("###############RESPONSE = ", response)
+    print(f"Sending response: {response}")
     return response
 
 
diff --git a/src/demo.py b/src/demo.py
index 0f0646a..a5d00ed 100644
--- a/src/demo.py
+++ b/src/demo.py
@@ -1,60 +1,71 @@
 from tpre import *
 import time
 
-for N in range(4,21,4):
-    # N = 10
-    # T = 5
-    T = N // 2
-    print(f"当前门限值: N = {N}, T = {T}")
-    
-    start_total_time = time.time()
-    # 1
-    start_time = time.time()
-    pk_a, sk_a = GenerateKeyPair()
-    m = b"hello world"
-    end_time = time.time()
-    elapsed_time = end_time - start_time
-    print(f"密钥生成运行时间:{elapsed_time}秒")
+# for T in range(2, 20, 2):
+N = 10
+T = N // 2
+# print(f"当前门限值: N = {N}, T = {T}")
 
-    # 2
-    start_time = time.time()
-    capsule_ct = Encrypt(pk_a, m)
-    end_time = time.time()
-    elapsed_time = end_time - start_time
-    print(f"加密算法运行时间:{elapsed_time}秒")
+start_total_time = time.time()
+# 1
+start_time = time.time()
+pk_a, sk_a = GenerateKeyPair()
+# print("pk_a: ", pk_a)
+# print("sk_a: ", sk_a)
+end_time = time.time()
+elapsed_time = end_time - start_time
+# print(f"密钥生成运行时间:{elapsed_time}秒")
 
-    # 3
-    pk_b, sk_b = GenerateKeyPair()
+# 2
+start_time = time.time()
+m = b"hello world"
+capsule_ct = Encrypt(pk_a, m)
+capsule = capsule_ct[0]
+print("check capsule: ", Checkcapsule(capsule))
+capsule = (capsule[0], capsule[1], -1)
+print("check capsule: ", Checkcapsule(capsule))
+# print("capsule_ct: ", capsule_ct)
+end_time = time.time()
+elapsed_time = end_time - start_time
+# print(f"加密算法运行时间:{elapsed_time}秒")
 
-    
-    # 5
-    start_time = time.time()
-    id_tuple = tuple(range(N))
-    rekeys = GenerateReKey(sk_a, pk_b, N, T, id_tuple)
-    end_time = time.time()
-    elapsed_time = end_time - start_time
-    print(f"重加密密钥生成算法运行时间:{elapsed_time}秒")
+# 3
+pk_b, sk_b = GenerateKeyPair()
 
-    # 7
-    start_time = time.time()
-    cfrag_cts = []
+# 5
+start_time = time.time()
+id_tuple = tuple(range(N))
+rekeys = GenerateReKey(sk_a, pk_b, N, T, id_tuple)
+# print("rekeys: ", rekeys)
+end_time = time.time()
+elapsed_time = end_time - start_time
+# print(f"重加密密钥生成算法运行时间:{elapsed_time}秒")
 
-    for rekey in rekeys:
-        cfrag_ct = ReEncrypt(rekey, capsule_ct)
-        cfrag_cts.append(cfrag_ct)
-    end_time = time.time()
-    elapsed_time = (end_time - start_time) / len(rekeys)
-    print(f"重加密算法运行时间:{elapsed_time}秒")
+# 7
+start_time = time.time()
+cfrag_cts = []
 
-    # 9
-    start_time = time.time()
-    cfrags = mergecfrag(cfrag_cts)
-    m = DecryptFrags(sk_b, pk_b, pk_a, cfrags)
-    end_time = time.time()
-    elapsed_time = end_time - start_time
-    end_total_time = time.time()
-    total_time = end_total_time - start_total_time
-    print(f"解密算法运行时间:{elapsed_time}秒")
-    print("成功解密:", m)
-    print(f"算法总运行时间:{total_time}秒")
-    print()
+for rekey in rekeys:
+    cfrag_ct = ReEncrypt(rekey, capsule_ct)
+    # cfrag_ct = ReEncrypt(rekeys[0], capsule_ct)
+    cfrag_cts.append(cfrag_ct)
+# print("cfrag_cts: ", cfrag_cts)
+end_time = time.time()
+re_elapsed_time = (end_time - start_time) / len(rekeys)
+# print(f"重加密算法运行时间:{re_elapsed_time}秒")
+
+# 9
+start_time = time.time()
+cfrags = mergecfrag(cfrag_cts)
+# print("cfrags: ", cfrags)
+# m = DecryptFrags(sk_b, pk_b, pk_a, cfrags)
+m = DecryptFrags(sk_a, pk_b, pk_a, cfrags)
+# print("m = ", m)
+end_time = time.time()
+elapsed_time = end_time - start_time
+end_total_time = time.time()
+total_time = end_total_time - start_total_time - re_elapsed_time * len(rekeys)
+# print(f"解密算法运行时间:{elapsed_time}秒")
+# print("成功解密:", m)
+# print(f"算法总运行时间:{total_time}秒")
+# print()
diff --git a/src/demo2.py b/src/demo2.py
new file mode 100644
index 0000000..6f466f5
--- /dev/null
+++ b/src/demo2.py
@@ -0,0 +1,93 @@
+from tpre import *
+import time
+import openpyxl
+
+# 初始化Excel工作簿和工作表
+wb = openpyxl.Workbook()
+ws = wb.active
+ws.title = "算法性能结果"
+headers = [
+    "门限值 N",
+    "门限值 T",
+    "密钥生成运行时间",
+    "加密算法运行时间",
+    "重加密密钥生成算法运行时间",
+    "重加密算法运行时间",
+    "解密算法运行时间",
+    "算法总运行时间",
+]
+ws.append(headers)
+
+
+for N in range(4, 21, 2):
+    T = N // 2
+    print(f"当前门限值: N = {N}, T = {T}")
+
+    start_total_time = time.time()
+    # 1
+    start_time = time.time()
+    pk_a, sk_a = GenerateKeyPair()
+    m = b"hello world"
+    end_time = time.time()
+    elapsed_time_key_gen = end_time - start_time
+    print(f"密钥生成运行时间:{elapsed_time_key_gen}秒")
+
+    # ... [中间代码不变]
+    # 2
+    start_time = time.time()
+    capsule_ct = Encrypt(pk_a, m)
+    end_time = time.time()
+    elapsed_time_enc = end_time - start_time
+    print(f"加密算法运行时间:{elapsed_time_enc}秒")
+
+    # 3
+    pk_b, sk_b = GenerateKeyPair()
+
+    # 5
+    start_time = time.time()
+    id_tuple = tuple(range(N))
+    rekeys = GenerateReKey(sk_a, pk_b, N, T, id_tuple)
+    end_time = time.time()
+    elapsed_time_rekey_gen = end_time - start_time
+    print(f"重加密密钥生成算法运行时间:{elapsed_time_rekey_gen}秒")
+
+    # 7
+    start_time = time.time()
+    cfrag_cts = []
+
+    for rekey in rekeys:
+        cfrag_ct = ReEncrypt(rekey, capsule_ct)
+        cfrag_cts.append(cfrag_ct)
+    end_time = time.time()
+    re_elapsed_time = (end_time - start_time) / len(rekeys)
+    print(f"重加密算法运行时间:{re_elapsed_time}秒")
+
+    # 9
+    start_time = time.time()
+    cfrags = mergecfrag(cfrag_cts)
+    m = DecryptFrags(sk_b, pk_b, pk_a, cfrags)
+    end_time = time.time()
+    elapsed_time_dec = end_time - start_time
+    end_total_time = time.time()
+    total_time = end_total_time - start_total_time - re_elapsed_time * len(rekeys)
+    print(f"解密算法运行时间:{elapsed_time_dec}秒")
+    print("成功解密:", m)
+    print(f"算法总运行时间:{total_time}秒")
+    print()
+
+    # 将结果保存到Excel
+    ws.append(
+        [
+            N,
+            T,
+            elapsed_time_key_gen,
+            elapsed_time_enc,
+            elapsed_time_rekey_gen,
+            re_elapsed_time,
+            elapsed_time_dec,
+            total_time,
+        ]
+    )
+
+# 保存Excel文件
+wb.save("结果.xlsx")
diff --git a/src/node.py b/src/node.py
index 0388e57..7d4e061 100644
--- a/src/node.py
+++ b/src/node.py
@@ -36,6 +36,7 @@ def send_ip():
     # ip = get_local_ip() # type: ignore
     global id
     id = requests.get(url, timeout=3)
+    print("中心服务器返回节点ID为: ", id)
 
 
 # 用环境变量获取本机ip
@@ -84,7 +85,10 @@ class Req(BaseModel):
 @app.post("/user_src")  # 接收用户1发送的信息
 async def user_src(message: Req):
     global client_ip_src, client_ip_des
-    # kfrag , capsule_ct ,client_ip_src , client_ip_des   = json_data[]  # 看梁俊勇
+    print(
+        f"Function 'user_src' called with: source_ip={message.source_ip}, dest_ip={message.dest_ip}, capsule={message.capsule}, ct={message.ct}, rk={message.rk}"
+    )
+    # kfrag , capsule_ct ,client_ip_src , client_ip_des   = json_data[]
     """
     payload = {
             "source_ip": local_ip,
@@ -100,10 +104,12 @@ async def user_src(message: Req):
     ct = message.ct
     capsule_ct = (capsule, ct.to_bytes(32))
     rk = message.rk
-
+    print(f"Computed capsule_ct: {capsule_ct}")
     a, b = ReEncrypt(rk, capsule_ct)
     processed_message = (a, int.from_bytes(b))
+    print(f"Re-encrypted message: {processed_message}")
     await send_user_des_message(source_ip, dest_ip, processed_message)
+    print("Message sent to destination user.")
     return HTTPException(status_code=200, detail="message recieved")
 
 
@@ -114,10 +120,10 @@ async def send_user_des_message(source_ip: str, dest_ip: str, re_message):  # 
     response = requests.post(
         "http://" + dest_ip + ":8002" + "/receive_messages", json=data
     )
-    print("send stauts:" ,response.text)
+    print("send stauts:", response.text)
 
 
 if __name__ == "__main__":
     import uvicorn  # pylint: disable=e0401
 
-    uvicorn.run("node:app", host="0.0.0.0", port=8001, reload=True,log_level="debug")
+    uvicorn.run("node:app", host="0.0.0.0", port=8001, reload=True, log_level="debug")
diff --git a/src/server.py b/src/server.py
index f0530cf..3e66739 100644
--- a/src/server.py
+++ b/src/server.py
@@ -65,9 +65,11 @@ async def get_node(ip: str) -> int:
     ip_int = 0
     for i in range(4):
         ip_int += int(ip_parts[i]) << (24 - (8 * i))
+    print("IP", ip, "对应的ID为", ip_int)
 
     # 获取当前时间
     current_time = int(time.time())
+    print("当前时间: ", current_time)
 
     # 插入数据
     cursor.execute(
@@ -102,6 +104,7 @@ async def delete_node(ip: str) -> None:
 # 接收节点心跳包
 @app.get("/server/heartbeat")
 async def receive_heartbeat(ip: str):
+    print("收到来自", ip, "的心跳包")
     cursor.execute(
         "UPDATE nodes SET last_heartbeat = ? WHERE ip = ?", (time.time(), ip)
     )
@@ -112,7 +115,9 @@ async def receive_heartbeat_internal():
     while 1:
         timeout = 70
         # 删除超时的节点
-        cursor.execute("DELETE FROM nodes WHERE last_heartbeat < ?", (time.time() - timeout,))
+        cursor.execute(
+            "DELETE FROM nodes WHERE last_heartbeat < ?", (time.time() - timeout,)
+        )
         conn.commit()
         await asyncio.sleep(timeout)
 
@@ -135,6 +140,8 @@ async def send_nodes_list(count: int) -> list:
         id, ip, last_heartbeat = row
         nodes_list.append(ip)
 
+    print("收到来自客户端的节点列表请求...")
+    print(nodes_list)
     return nodes_list