diff --git a/czsc/__init__.py b/czsc/__init__.py
index df8ada46555c78d88a7faeb07f41b47080c2204b..3677ac349a0a82c23735bf9c3188a488ba488817 100644
--- a/czsc/__init__.py
+++ b/czsc/__init__.py
@@ -7,7 +7,7 @@ from .solid import SolidAnalyze
 from .solid import is_in_tolerance, is_first_buy, is_first_sell, is_second_buy, \
     is_second_sell, is_third_buy, is_third_sell, is_xd_buy, is_xd_sell
 
-__version__ = "0.3.8"
+__version__ = "0.3.9"
 __author__ = "zengbin93"
 __email__ = "zeng_bin8888@163.com"
 
diff --git a/czsc/analyze.py b/czsc/analyze.py
index 855155e93ba330889ac9c347729f6b44d30235c6..bab21b0228a8f17b484c8f67eb19466b7e4372df 100644
--- a/czsc/analyze.py
+++ b/czsc/analyze.py
@@ -234,7 +234,9 @@ class KlineAnalyze(object):
     def _preprocess(kline):
         """新增分析所需字段"""
         if isinstance(kline, pd.DataFrame):
-            kline = [row.to_dict() for _, row in kline.iterrows()]
+            columns = kline.columns.to_list()
+            kline = [{k: v for k, v in zip(columns, row)} for row in kline.values]
+            # kline = [row.to_dict() for _, row in kline.iterrows()]
 
         results = []
         for k in kline:
diff --git a/test/profile_df.py b/test/profile_df.py
new file mode 100644
index 0000000000000000000000000000000000000000..f8155339291b5b47d13778d70662fe523ba0f7be
--- /dev/null
+++ b/test/profile_df.py
@@ -0,0 +1,25 @@
+from cobra.data.kline import get_kline
+
+
+def convert_to_list_v1(df):
+    rows = [x.to_dict() for _, x in df.iterrows()]
+    return rows
+
+
+def convert_to_list_v2(df):
+    rows = df.to_dict("records")
+    return rows
+
+
+def convert_to_list_v3(df):
+    columns = df.columns.to_list()
+    rows = [{k: v for k, v in zip(columns, row)} for row in df.values]
+    return rows
+
+
+if __name__ == '__main__':
+    df = get_kline(ts_code="000001.SH", end_dt="2020-04-28 15:00:00", freq='D', asset='I')
+    # convert_to_list_v1(df)
+    convert_to_list_v2(df)
+
+
diff --git a/test/test_analyze.py b/test/test_analyze.py
index 4013ea4d6a086c640f0ddfcd5f25611470b3a6f0..148e04e211630582d42b713374ef630fb5c91d29 100644
--- a/test/test_analyze.py
+++ b/test/test_analyze.py
@@ -1,14 +1,14 @@
 # coding: utf-8
 import sys
+import warnings
 from cobra.data.kline import get_kline
 sys.path.insert(0, '.')
 sys.path.insert(0, '..')
 import czsc
 from czsc import KlineAnalyze
 from czsc.analyze import is_bei_chi, find_zs
-from czsc.utils import plot_ka
 
-print(czsc.__version__)
+warnings.warn(f"czsc version is {czsc.__version__}")
 
 df = get_kline(ts_code="000001.SH", end_dt="2020-04-28 15:00:00", freq='D', asset='I')
 ka = KlineAnalyze(df, name="日线")
diff --git a/test/test_solid.py b/test/test_solid.py
index 1721d5e8e56ddf8abc4de4cda062164bc7d6509b..c9f0a5cf44f6cb7662aed6fd0eda4877af7b35b6 100644
--- a/test/test_solid.py
+++ b/test/test_solid.py
@@ -1,11 +1,12 @@
 # coding: utf-8
 import sys
+import warnings
 from cobra.data.kline import get_klines
 sys.path.insert(0, '.')
 sys.path.insert(0, '..')
 import czsc
 from czsc.solid import SolidAnalyze, is_in_tolerance
-print(czsc.__version__)
+warnings.warn(f"czsc version is {czsc.__version__}")
 
 
 def test_in_tolerance():