diff --git a/lectures/about_py.md b/lectures/about_py.md
index 13aa7ee..32f4fe4 100644
--- a/lectures/about_py.md
+++ b/lectures/about_py.md
@@ -306,6 +306,8 @@ import matplotlib as mpl  # i18n
 import matplotlib.font_manager  # i18n
 FONTPATH = "_fonts/SourceHanSerifSC-SemiBold.otf"  # i18n
 mpl.font_manager.fontManager.addfont(FONTPATH)  # i18n
+import logging  # i18n
+logging.getLogger('matplotlib.font_manager').setLevel(logging.ERROR)  # i18n
 mpl.rcParams['font.family'] = ['Source Han Serif SC']  # i18n
 
 a = np.linspace(-np.pi, np.pi, 100)    # 创建从 -π 到 π 的均匀网格
diff --git a/lectures/debugging.md b/lectures/debugging.md
index 92b6023..1ea3a3c 100644
--- a/lectures/debugging.md
+++ b/lectures/debugging.md
@@ -75,6 +75,8 @@ import matplotlib as mpl  # i18n
 import matplotlib.font_manager  # i18n
 FONTPATH = "_fonts/SourceHanSerifSC-SemiBold.otf"  # i18n
 mpl.font_manager.fontManager.addfont(FONTPATH)  # i18n
+import logging  # i18n
+logging.getLogger('matplotlib.font_manager').setLevel(logging.ERROR)  # i18n
 mpl.rcParams['font.family'] = ['Source Han Serif SC']  # i18n
 ```
 
diff --git a/lectures/functions.md b/lectures/functions.md
index 89328da..de8d0c8 100644
--- a/lectures/functions.md
+++ b/lectures/functions.md
@@ -65,6 +65,8 @@ import matplotlib as mpl  # i18n
 import matplotlib.font_manager  # i18n
 FONTPATH = "_fonts/SourceHanSerifSC-SemiBold.otf"  # i18n
 mpl.font_manager.fontManager.addfont(FONTPATH)  # i18n
+import logging  # i18n
+logging.getLogger('matplotlib.font_manager').setLevel(logging.ERROR)  # i18n
 mpl.rcParams['font.family'] = ['Source Han Serif SC']  # i18n
 ```
 
diff --git a/lectures/jax_intro.md b/lectures/jax_intro.md
index c035263..a628fdd 100644
--- a/lectures/jax_intro.md
+++ b/lectures/jax_intro.md
@@ -75,6 +75,8 @@ import matplotlib as mpl  # i18n
 import matplotlib.font_manager  # i18n
 FONTPATH = "_fonts/SourceHanSerifSC-SemiBold.otf"  # i18n
 mpl.font_manager.fontManager.addfont(FONTPATH)  # i18n
+import logging  # i18n
+logging.getLogger('matplotlib.font_manager').setLevel(logging.ERROR)  # i18n
 mpl.rcParams['font.family'] = ['Source Han Serif SC', 'DejaVu Sans']  # i18n
 import numpy as np
 import quantecon as qe
diff --git a/lectures/matplotlib.md b/lectures/matplotlib.md
index 8ffd244..7c58a31 100644
--- a/lectures/matplotlib.md
+++ b/lectures/matplotlib.md
@@ -80,6 +80,8 @@ import matplotlib as mpl  # i18n
 import matplotlib.font_manager  # i18n
 FONTPATH = "_fonts/SourceHanSerifSC-SemiBold.otf"  # i18n
 mpl.font_manager.fontManager.addfont(FONTPATH)  # i18n
+import logging  # i18n
+logging.getLogger('matplotlib.font_manager').setLevel(logging.ERROR)  # i18n
 mpl.rcParams['font.family'] = ['Source Han Serif SC']  # i18n
 
 x = np.linspace(0, 10, 200)
diff --git a/lectures/need_for_speed.md b/lectures/need_for_speed.md
index 9b0fc68..b77f5fd 100644
--- a/lectures/need_for_speed.md
+++ b/lectures/need_for_speed.md
@@ -92,6 +92,8 @@ import matplotlib as mpl  # i18n
 import matplotlib.font_manager  # i18n
 FONTPATH = "_fonts/SourceHanSerifSC-SemiBold.otf"  # i18n
 mpl.font_manager.fontManager.addfont(FONTPATH)  # i18n
+import logging  # i18n
+logging.getLogger('matplotlib.font_manager').setLevel(logging.ERROR)  # i18n
 mpl.rcParams['font.family'] = ['Source Han Serif SC']  # i18n
 import random
 ```
diff --git a/lectures/numba.md b/lectures/numba.md
index b5d29b8..f5287c9 100644
--- a/lectures/numba.md
+++ b/lectures/numba.md
@@ -56,6 +56,8 @@ import matplotlib as mpl  # i18n
 import matplotlib.font_manager  # i18n
 FONTPATH = "_fonts/SourceHanSerifSC-SemiBold.otf"  # i18n
 mpl.font_manager.fontManager.addfont(FONTPATH)  # i18n
+import logging  # i18n
+logging.getLogger('matplotlib.font_manager').setLevel(logging.ERROR)  # i18n
 mpl.rcParams['font.family'] = ['Source Han Serif SC']  # i18n
 ```
 
diff --git a/lectures/numpy.md b/lectures/numpy.md
index 1709d88..ad29a4a 100644
--- a/lectures/numpy.md
+++ b/lectures/numpy.md
@@ -85,6 +85,8 @@ import matplotlib as mpl  # i18n
 import matplotlib.font_manager  # i18n
 FONTPATH = "_fonts/SourceHanSerifSC-SemiBold.otf"  # i18n
 mpl.font_manager.fontManager.addfont(FONTPATH)  # i18n
+import logging  # i18n
+logging.getLogger('matplotlib.font_manager').setLevel(logging.ERROR)  # i18n
 mpl.rcParams['font.family'] = ['Source Han Serif SC']  # i18n
 from mpl_toolkits.mplot3d.axes3d import Axes3D
 from matplotlib import cm
diff --git a/lectures/numpy_vs_numba_vs_jax.md b/lectures/numpy_vs_numba_vs_jax.md
index 870ea88..2001bea 100644
--- a/lectures/numpy_vs_numba_vs_jax.md
+++ b/lectures/numpy_vs_numba_vs_jax.md
@@ -81,6 +81,8 @@ import matplotlib as mpl  # i18n
 import matplotlib.font_manager  # i18n
 FONTPATH = "_fonts/SourceHanSerifSC-SemiBold.otf"  # i18n
 mpl.font_manager.fontManager.addfont(FONTPATH)  # i18n
+import logging  # i18n
+logging.getLogger('matplotlib.font_manager').setLevel(logging.ERROR)  # i18n
 mpl.rcParams['font.family'] = ['Source Han Serif SC']  # i18n
 from mpl_toolkits.mplot3d.axes3d import Axes3D
 from matplotlib import cm
diff --git a/lectures/pandas.md b/lectures/pandas.md
index 43cbd21..32f998c 100644
--- a/lectures/pandas.md
+++ b/lectures/pandas.md
@@ -86,6 +86,8 @@ import matplotlib.font_manager  # i18n
 import requests
 FONTPATH = "_fonts/SourceHanSerifSC-SemiBold.otf"  # i18n
 mpl.font_manager.fontManager.addfont(FONTPATH)  # i18n
+import logging  # i18n
+logging.getLogger('matplotlib.font_manager').setLevel(logging.ERROR)  # i18n
 mpl.rcParams['font.family'] = ['Source Han Serif SC']  # i18n
 ```
 
diff --git a/lectures/pandas_panel.md b/lectures/pandas_panel.md
index 95da282..24bbaae 100644
--- a/lectures/pandas_panel.md
+++ b/lectures/pandas_panel.md
@@ -50,6 +50,8 @@ import matplotlib as mpl  # i18n
 import matplotlib.font_manager  # i18n
 FONTPATH = "_fonts/SourceHanSerifSC-SemiBold.otf"  # i18n
 mpl.font_manager.fontManager.addfont(FONTPATH)  # i18n
+import logging  # i18n
+logging.getLogger('matplotlib.font_manager').setLevel(logging.ERROR)  # i18n
 mpl.rcParams['font.family'] = ['Source Han Serif SC']  # i18n
 import seaborn as sns
 sns.set_theme(rc={'font.family': ['Source Han Serif SC', 'DejaVu Sans']})  # i18n：set_theme 会重置字体，用 rc 覆盖保留中文字体
diff --git a/lectures/python_advanced_features.md b/lectures/python_advanced_features.md
index 5cb769c..5b0ad3a 100644
--- a/lectures/python_advanced_features.md
+++ b/lectures/python_advanced_features.md
@@ -380,6 +380,8 @@ import matplotlib as mpl  # i18n
 import matplotlib.font_manager  # i18n
 FONTPATH = "_fonts/SourceHanSerifSC-SemiBold.otf"  # i18n
 mpl.font_manager.fontManager.addfont(FONTPATH)  # i18n
+import logging  # i18n
+logging.getLogger('matplotlib.font_manager').setLevel(logging.ERROR)  # i18n
 mpl.rcParams['font.family'] = ['Source Han Serif SC']  # i18n
 
 # 设置图框和子图
diff --git a/lectures/python_by_example.md b/lectures/python_by_example.md
index a6612da..b7d61e9 100644
--- a/lectures/python_by_example.md
+++ b/lectures/python_by_example.md
@@ -81,6 +81,8 @@ import matplotlib as mpl  # i18n
 import matplotlib.font_manager  # i18n
 FONTPATH = "_fonts/SourceHanSerifSC-SemiBold.otf"  # i18n
 mpl.font_manager.fontManager.addfont(FONTPATH)  # i18n
+import logging  # i18n
+logging.getLogger('matplotlib.font_manager').setLevel(logging.ERROR)  # i18n
 mpl.rcParams['font.family'] = ['Source Han Serif SC']  # i18n
 
 rng = np.random.default_rng()
diff --git a/lectures/python_oop.md b/lectures/python_oop.md
index 6b634d4..2a9ed9c 100644
--- a/lectures/python_oop.md
+++ b/lectures/python_oop.md
@@ -80,6 +80,8 @@ import matplotlib as mpl  # i18n
 import matplotlib.font_manager  # i18n
 FONTPATH = "_fonts/SourceHanSerifSC-SemiBold.otf"  # i18n
 mpl.font_manager.fontManager.addfont(FONTPATH)  # i18n
+import logging  # i18n
+logging.getLogger('matplotlib.font_manager').setLevel(logging.ERROR)  # i18n
 mpl.rcParams['font.family'] = ['Source Han Serif SC']  # i18n
 ```
 
diff --git a/lectures/scipy.md b/lectures/scipy.md
index c0a5381..f526757 100644
--- a/lectures/scipy.md
+++ b/lectures/scipy.md
@@ -154,6 +154,8 @@ import matplotlib as mpl  # i18n
 import matplotlib.font_manager  # i18n
 FONTPATH = "_fonts/SourceHanSerifSC-SemiBold.otf"  # i18n
 mpl.font_manager.fontManager.addfont(FONTPATH)  # i18n
+import logging  # i18n
+logging.getLogger('matplotlib.font_manager').setLevel(logging.ERROR)  # i18n
 mpl.rcParams['font.family'] = ['Source Han Serif SC']  # i18n
 
 q = beta(5, 5)      # Beta(a, b)，其中 a = b = 5
diff --git a/lectures/sympy.md b/lectures/sympy.md
index ac018e2..91913f5 100644
--- a/lectures/sympy.md
+++ b/lectures/sympy.md
@@ -79,6 +79,8 @@ import matplotlib as mpl  # i18n
 import matplotlib.font_manager  # i18n
 FONTPATH = "_fonts/SourceHanSerifSC-SemiBold.otf"  # i18n
 mpl.font_manager.fontManager.addfont(FONTPATH)  # i18n
+import logging  # i18n
+logging.getLogger('matplotlib.font_manager').setLevel(logging.ERROR)  # i18n
 mpl.rcParams['font.family'] = ['Source Han Serif SC']  # i18n
 
 # 启用 mathjax 打印器
diff --git a/lectures/workspace.md b/lectures/workspace.md
index 7199b2f..04e9f4a 100644
--- a/lectures/workspace.md
+++ b/lectures/workspace.md
@@ -77,6 +77,8 @@ import numpy as np
 
 FONTPATH = "_fonts/SourceHanSerifSC-SemiBold.otf"  # i18n
 mpl.font_manager.fontManager.addfont(FONTPATH)  # i18n
+import logging  # i18n
+logging.getLogger('matplotlib.font_manager').setLevel(logging.ERROR)  # i18n
 mpl.rcParams['font.family'] = ['Source Han Serif SC']  # i18n
 
 x = np.linspace(0, 10, 100)
diff --git a/lectures/writing_good_code.md b/lectures/writing_good_code.md
index 2f7be27..5c65cf0 100644
--- a/lectures/writing_good_code.md
+++ b/lectures/writing_good_code.md
@@ -91,6 +91,8 @@ import matplotlib as mpl  # i18n
 import matplotlib.font_manager  # i18n
 FONTPATH = "_fonts/SourceHanSerifSC-SemiBold.otf"  # i18n
 mpl.font_manager.fontManager.addfont(FONTPATH)  # i18n
+import logging  # i18n
+logging.getLogger('matplotlib.font_manager').setLevel(logging.ERROR)  # i18n
 mpl.rcParams['font.family'] = ['Source Han Serif SC']  # i18n
 
 # 为时间序列分配内存