diff --git a/commons/cases.py b/commons/cases.py
index 6250c01..c47b1be 100644
--- a/commons/cases.py
+++ b/commons/cases.py
@@ -85,20 +85,21 @@ class TestAPI:
             item.get(case_key)
             logger.info(f"========:{item}")
             logger.info(f"========:{item.get(case_key)}")
-            # allure.dynamic.title(case_info.title)
+            allure.dynamic.title(case_info.get("title"))
 
-            logger.info(f"用例开始执行：{case_info.title}".center(80, "="))
+            logger.info(f"用例开始执行：{case_info.get('title')}".center(80, "="))
 
             # 0，变量替换
             new_case_info = exchanger.replace(case_info)
             logger.info(f"1，正在注入变量...")
-
+            logger.info(f"new_case_info={new_case_info}")
             # 1，发送请求
             logger.info(f"2，正在请求接口...")
-            resp = session.request(**new_case_info.request)
+            resp = session.request(**new_case_info.get("request"))
 
             logger.info(f"3，正在提取变量...")
             # 2，保存变量(接口关联)
+            new_case_info = CaseInfo(**new_case_info)
             for var_name, extract_info in new_case_info.extract.items():
                 # logger.info(f"保存变量：{var_name}{extract_info}")
                 exchanger.extract(resp, var_name, *extract_info)
diff --git a/commons/exchange.py b/commons/exchange.py
index 85b9e0d..ed3366c 100644
--- a/commons/exchange.py
+++ b/commons/exchange.py
@@ -19,7 +19,7 @@ import allure
 from commons.templates import Template
 import jsonpath
 
-from commons.file_processors.yaml_processor import YamlFile
+from commons.file_processors.yaml_processor import YamlFile,StringOrDict
 from commons.models import CaseInfo
 
 logger = logging.getLogger(__name__)
@@ -59,20 +59,31 @@ class Exchange:
         self.file[var_name] = value  # 保存变量
         self.file.save()  # 持久化存储到文件
 
+    # @allure.step("替换变量")
+    # def replace(self, case_info: CaseInfo):
+    #     logger.info(case_info)
+    #     # 1，将case_info转换为字符串
+    #     case_info_str = case_info.to_yaml()
+    #     print(f"{case_info_str=}")
+    #     # 2，替换字符串
+    #     case_info_str = Template(case_info_str).render(self.file)
+    #     print(f"{case_info_str=}")
+    #     # 3，将字符串转换成case_info
+    #     new_case_info = case_info.by_yaml(case_info_str)
+    #     return new_case_info
     @allure.step("替换变量")
-    def replace(self, case_info: CaseInfo):
+    def replace(self, case_info: dict):
         logger.info(case_info)
         # 1，将case_info转换为字符串
-        case_info_str = case_info.to_yaml()
+        case_info_str = StringOrDict().to_string(case_info)
         print(f"{case_info_str=}")
         # 2，替换字符串
         case_info_str = Template(case_info_str).render(self.file)
         print(f"{case_info_str=}")
         # 3，将字符串转换成case_info
-        new_case_info = case_info.by_yaml(case_info_str)
+        new_case_info =  StringOrDict().to_dict(case_info_str)
         return new_case_info
 
-
 if __name__ == '__main__':
     class MockResponse:
         text = '{"name":"张三","age":"18","data":[3,4,5],"aaa":null}'
diff --git a/commons/file_processors/yaml_processor.py b/commons/file_processors/yaml_processor.py
index 9e2e74b..4b94833 100644
--- a/commons/file_processors/yaml_processor.py
+++ b/commons/file_processors/yaml_processor.py
@@ -136,7 +136,7 @@ class StringOrDict:
             return ""
 
     @classmethod
-    def to_dict(cls, data: str) -> None:
+    def to_dict(cls, data: str) -> Union[None, dict]:
         """
         将 YAML 格式的字符串转换为字典，并更新当前字典的内容.
 
diff --git a/commons/session.py b/commons/session.py
index ac39670..4b326b5 100644
--- a/commons/session.py
+++ b/commons/session.py
@@ -41,7 +41,8 @@ class Session(requests.Session):
 
         logger.info(f"接收响应      <<<<<< 状态码 = {resp.status_code}")
         logger.info(f"接收响应      <<<<<< 响应头 = {resp.headers}")
-        logger.info(f"接收响应      <<<<<< 响应正文 = {resp.json()}")
+        logger.info(f"接收响应      <<<<<< 响应正文 = {resp.text}")
+        # logger.info(f"接收响应      <<<<<< 响应正文 = {resp.json()}")
 
         return resp