diff --git a/examples/aflow/benchmark/gsm8k.py b/examples/aflow/benchmark/gsm8k.py
index 9f7813f86..1e38fc23d 100644
--- a/examples/aflow/benchmark/gsm8k.py
+++ b/examples/aflow/benchmark/gsm8k.py
@@ -40,7 +40,7 @@ def calculate_score(self, expected_output: float, prediction: float) -> Tuple[fl
     async def evaluate_problem(self, problem: dict, graph: Callable) -> Tuple[str, str, float, float, float]:
         max_retries = 5
         retries = 0
-
+    
         while retries < max_retries:
             try:
                 prediction, cost = await graph(problem["question"])
diff --git a/examples/aflow/data/download_data.py b/examples/aflow/data/download_data.py
index a2214177f..00aaa7ebc 100644
--- a/examples/aflow/data/download_data.py
+++ b/examples/aflow/data/download_data.py
@@ -1,9 +1,16 @@
+# -*- coding: utf-8 -*-
+# @Date    : 2024-10-20
+# @Author  : MoshiQAQ & didi
+# @Desc    : Download and extract dataset files
+
 import os
 import requests
 import tarfile
 from tqdm import tqdm
+from typing import List, Dict
 
-def download_file(url, filename):
+def download_file(url: str, filename: str) -> None:
+    """Download a file from the given URL and show progress."""
     response = requests.get(url, stream=True)
     total_size = int(response.headers.get('content-length', 0))
     block_size = 1024
@@ -15,22 +22,49 @@ def download_file(url, filename):
             progress_bar.update(size)
     progress_bar.close()
 
-def extract_tar_gz(filename, extract_path):
+def extract_tar_gz(filename: str, extract_path: str) -> None:
+    """Extract a tar.gz file to the specified path."""
     with tarfile.open(filename, 'r:gz') as tar:
         tar.extractall(path=extract_path)
 
-url = "https://drive.google.com/uc?export=download&id=1tXp5cLw89egeKRwDuood2TPqoEWd8_C0"
-filename = "aflow_data.tar.gz"
-extract_path = "./"
-
-print("Downloading data file...")
-download_file(url, filename)
-
-print("Extracting data file...")
-extract_tar_gz(filename, extract_path)
+def process_dataset(url: str, filename: str, extract_path: str) -> None:
+    """Download, extract, and clean up a dataset."""
+    print(f"Downloading {filename}...")
+    download_file(url, filename)
+    
+    print(f"Extracting {filename}...")
+    extract_tar_gz(filename, extract_path)
+    
+    print(f"{filename} download and extraction completed.")
+    
+    os.remove(filename)
+    print(f"Removed {filename}")
 
-print("Download and extraction completed.")
+# Define the datasets to be downloaded
+# Users can modify this list to choose which datasets to download
+datasets_to_download: List[Dict[str, str]] = [
+    {
+        "name": "datasets",
+        "url": "https://drive.google.com/uc?export=download&id=1tXp5cLw89egeKRwDuood2TPqoEWd8_C0",
+        "filename": "aflow_data.tar.gz",
+        "extract_path": "examples/aflow/data"
+    },
+    {
+        "name": "results",
+        "url": "",  # Please fill in the correct URL
+        "filename": "result.tar.gz",
+        "extract_path": "examples/aflow/data/results"
+    },
+    {
+        "name": "initial_rounds",
+        "url": "",  # Please fill in the correct URL
+        "filename": "first_round.tar.gz",
+        "extract_path": "examples/aflow/scripts/optimized"
+    }
+]
 
-# Clean up the compressed file
-os.remove(filename)
-print(f"Removed {filename}")
+def download(datasets):
+    """Main function to process all selected datasets."""
+    for dataset_name in datasets:
+        dataset = datasets_to_download[dataset_name]
+        process_dataset(dataset['url'], dataset['filename'], dataset['extract_path'])
\ No newline at end of file
diff --git a/examples/aflow/data/human-eval_test.jsonl b/examples/aflow/data/humaneval_test.jsonl
similarity index 100%
rename from examples/aflow/data/human-eval_test.jsonl
rename to examples/aflow/data/humaneval_test.jsonl
diff --git a/examples/aflow/data/human-eval_validate.jsonl b/examples/aflow/data/humaneval_validate.jsonl
similarity index 100%
rename from examples/aflow/data/human-eval_validate.jsonl
rename to examples/aflow/data/humaneval_validate.jsonl
diff --git a/examples/aflow/scripts/evaluator.py b/examples/aflow/scripts/evaluator.py
index 1e746c172..14b068168 100644
--- a/examples/aflow/scripts/evaluator.py
+++ b/examples/aflow/scripts/evaluator.py
@@ -39,25 +39,21 @@ async def graph_evaluate(self, dataset: DatasetType, graph, params: dict, path:
 
         data_path = self._get_data_path(dataset, is_test)
         benchmark_class = self.dataset_configs[dataset]
-        benchmark = benchmark_class(dataset, data_path, path)
+        benchmark = benchmark_class(name=dataset, file_path=data_path, log_path=path)
 
         # Use params to configure the graph and benchmark
-        configured_graph = await self._configure_graph(graph, params)
+        configured_graph = await self._configure_graph(dataset, graph, params)
 
         va_list = [1,2,3]  # Use va_list from params, or use default value if not provided
         return await benchmark.run_evaluation(configured_graph, va_list)
 
-    async def _configure_graph(self, graph, params: dict):
+    async def _configure_graph(self, dataset, graph, params: dict):
         # Here you can configure the graph based on params
         # For example: set LLM configuration, dataset configuration, etc.
         dataset_config = params.get("dataset", {})
         llm_config = params.get("llm_config", {})
-        return graph(name=self.dataset_configs[dataset]["name"], llm_config=llm_config, dataset=dataset_config)
+        return graph(name=dataset, llm_config=llm_config, dataset=dataset_config)
 
     def _get_data_path(self, dataset: DatasetType, test: bool) -> str:
         base_path = f"examples/aflow/data/{dataset.lower()}"
         return f"{base_path}_test.jsonl" if test else f"{base_path}_validate.jsonl"
-
-# Alias methods for backward compatibility
-for dataset in ["gsm8k", "math", "humaneval", "mbpp", "hotpotqa", "drop"]:
-    setattr(Evaluator, f"_{dataset}_eval", lambda self, *args, dataset=dataset.upper(), **kwargs: self.graph_evaluate(dataset, *args, **kwargs))
diff --git a/examples/aflow/scripts/optimizer.py b/examples/aflow/scripts/optimizer.py
index d96d1e089..d73be574f 100644
--- a/examples/aflow/scripts/optimizer.py
+++ b/examples/aflow/scripts/optimizer.py
@@ -82,23 +82,27 @@ def optimize(self, mode: OptimizerType = "Graph"):
             retry_count = 0
             max_retries = 1
 
-            while retry_count < max_retries:
-                try:
-                    score = loop.run_until_complete(self._optimize_graph())
-                    break
-                except Exception as e:
-                    retry_count += 1
-                    logger.info(f"Error occurred: {e}. Retrying... (Attempt {retry_count}/{max_retries})")
-                    if retry_count == max_retries:
-                        logger.info("Max retries reached. Moving to next round.")
-                        score = None
-
-                    wait_time = 5 * retry_count
-                    time.sleep(wait_time)
-
-                if retry_count < max_retries:
-                    loop = asyncio.new_event_loop()
-                    asyncio.set_event_loop(loop)
+            
+            score = loop.run_until_complete(self._optimize_graph())
+
+            # while retry_count < max_retries:
+            #     try:
+            #         score = loop.run_until_complete(self._optimize_graph())
+            #         break
+            #     except Exception as e:
+            #         retry_count += 1
+            #         logger.info(f"Error occurred: {e}. Retrying... (Attempt {retry_count}/{max_retries})")
+            #         if retry_count == max_retries:
+            #             logger.info("Max retries reached. Moving to next round.")
+            #             score = None
+
+            #         wait_time = 5 * retry_count
+            #         time.sleep(wait_time)
+
+            #     if retry_count < max_retries:
+            #         loop = asyncio.new_event_loop()
+            #         asyncio.set_event_loop(loop)
+            
             self.round += 1
             logger.info(f"Score for round {self.round}: {score}")
 
@@ -114,7 +118,7 @@ def optimize(self, mode: OptimizerType = "Graph"):
             time.sleep(5)
 
     async def _optimize_graph(self):
-        validation_n = 5                                    # validation datasets's execution number
+        validation_n = 2                                   # validation datasets's execution number
         graph_path = f"{self.root_path}/workflows"
         data = self.data_utils.load_results(graph_path)
 
diff --git a/metagpt/actions/action_node.py b/metagpt/actions/action_node.py
index 06186f725..8755b8991 100644
--- a/metagpt/actions/action_node.py
+++ b/metagpt/actions/action_node.py
@@ -622,21 +622,19 @@ async def fill(
         if self.schema:
             schema = self.schema
 
-        if mode == FillMode.CODE_FILL:
+
+        if mode == FillMode.CODE_FILL.value:
             result = await self.code_fill(context, function_name, timeout)
             self.instruct_content = self.create_class()(**result)
             return self
 
-        elif mode == FillMode.CONTEXT_FILL:
-            """
-            使用xml_compile，但是这个版本没有办法实现system message 跟 temperature
-            """
+        elif mode == FillMode.CONTEXT_FILL.value:
             context = self.xml_compile(context=self.context)
             result = await self.context_fill(context)
             self.instruct_content = self.create_class()(**result)
             return self
 
-        elif mode == FillMode.SINGLE_FILL:
+        elif mode == FillMode.SINGLE_FILL.value:
             result = await self.single_fill(context)
             self.instruct_content = self.create_class()(**result)
             return self
diff --git a/optimize.py b/optimize.py
index 29bd4a8b3..9b6c81f51 100644
--- a/optimize.py
+++ b/optimize.py
@@ -4,6 +4,7 @@
 # @Desc    : Entrance of AFlow.
 
 from examples.aflow.scripts.optimizer import Optimizer
+from examples.aflow.data.download_data import download
 from metagpt.configs.models_config import ModelsConfig
 from typing import Literal
 
@@ -12,10 +13,13 @@
 QuestionType = Literal["math", "code", "qa"]
 OptimizerType = Literal["Graph", "Test"]
 
+# When you fisrt use, please download the datasets and initial rounds; If you want to get a look of the results, please download the results.
+# download(["datasets", "results", "initial_rounds"])
+
 # Crucial Parameters
-dataset: DatasetType = "HotpotQA"  # Ensure the type is consistent with DatasetType
+dataset: DatasetType = "GSM8K"  # Ensure the type is consistent with DatasetType
 sample: int = 4  # Sample Count, which means how many workflows will be resampled from generated workflows
-question_type: QuestionType = "quiz"  # Ensure the type is consistent with QuestionType
+question_type: QuestionType = "code"  # Ensure the type is consistent with QuestionType
 optimized_path: str = "examples/aflow/scripts/optimized"  # Optimized Result Save Path
 initial_round: int = 1  # Corrected the case from Initial_round to initial_round
 max_rounds: int = 20
@@ -30,9 +34,9 @@
     "Custom",                       # It's basic unit of a fixed node. optimizer can modify its prompt to get vairous nodes.
     # "AnswerGenerate"              # It's for qa
     # "CustomCodeGenerate",         # It's for code
-    # "ScEnsemble",                 # It's for code, math and qa
+    "ScEnsemble",                 # It's for code, math and qa
     # "Test",                       # It's for code
-    # "Programmer",                 # It's for math 
+    "Programmer",                 # It's for math 
 ]
 
 # Create an optimizer instance
@@ -53,4 +57,4 @@
     # Optimize workflow via setting the optimizer's mode to 'Graph'
     optimizer.optimize("Graph")
     # Test workflow via setting the optimizer's mode to 'Test'
-    optimizer.optimize("Test")
\ No newline at end of file
+    # optimizer.optimize("Test")
\ No newline at end of file