diff --git a/2023.09.05_stock_data_from_akshare/stock_data_from_akshare.py b/2023.09.05_stock_data_from_akshare/stock_data_from_akshare.py
index e48a13d..f0f09e5 100644
--- a/2023.09.05_stock_data_from_akshare/stock_data_from_akshare.py
+++ b/2023.09.05_stock_data_from_akshare/stock_data_from_akshare.py
@@ -10,9 +10,9 @@ print(title)
 print(stock_data[0])
 num = 30
 date_array = stock_data[0:num, 0]
-opening_array = stock_data[0:num, 1]
-closing_array = stock_data[0:num, 2]
-high_array = stock_data[0:num, 3]
-low_array = stock_data[0:num, 4]
+opening_array = stock_data[0:num, 2]
+closing_array = stock_data[0:num, 3]
+high_array = stock_data[0:num, 4]
+low_array = stock_data[0:num, 5]
 guan.plot(date_array, closing_array, style='o-', xlabel='date', ylabel='price')
 guan.plot_stock_line(date_array, opening_array, closing_array, high_array, low_array)
\ No newline at end of file
diff --git a/2023.12.28_stock_symbols_classification/stock_symbols_classification.py b/2023.12.28_stock_symbols_classification/stock_symbols_classification.py
index 107f93b..5ff9a74 100644
--- a/2023.12.28_stock_symbols_classification/stock_symbols_classification.py
+++ b/2023.12.28_stock_symbols_classification/stock_symbols_classification.py
@@ -44,7 +44,8 @@ stock_symbols_30 = []
 for stock_symbol in stock_symbols:
     find_300 = re.findall(r'^300', stock_symbol)
     find_301 = re.findall(r'^301', stock_symbol)
-    if find_300 != [] or find_301 != []:
+    find_302 = re.findall(r'^302', stock_symbol)
+    if find_300 != [] or find_301 != [] or find_302 != []:
         stock_symbols_30.append(stock_symbol)
 num_stocks_30 = len(stock_symbols_30)
 print('创业板股票数量：', num_stocks_30)
@@ -61,21 +62,19 @@ num_stocks_68= len(stock_symbols_68)
 print('科创板股票数量：', num_stocks_68)
 # print(stock_symbols_68)
 
-# 新三板以及北交所
+# 北交所和新三板
 stock_symbols_8_4_9 = []
 for stock_symbol in stock_symbols:
-    find_82 = re.findall(r'^82', stock_symbol)
     find_83 = re.findall(r'^83', stock_symbol)
     find_87 = re.findall(r'^87', stock_symbol)
-    find_88 = re.findall(r'^88', stock_symbol)
     find_430 = re.findall(r'^430', stock_symbol)
     find_420 = re.findall(r'^420', stock_symbol)
     find_400 = re.findall(r'^400', stock_symbol)
     find_920 = re.findall(r'^920', stock_symbol)
-    if find_82 != [] or find_83 != [] or find_87 != [] or find_88 != [] or find_430 != [] or find_420 != [] or find_400 != [] or find_920 != []:
+    if find_83 != [] or find_87 != [] or find_430 != [] or find_420 != [] or find_400 != [] or find_920 != []:
         stock_symbols_8_4_9.append(stock_symbol)
 num_stocks_8_4_9= len(stock_symbols_8_4_9)
-print('新三板以及北交所股票数量：', num_stocks_8_4_9)
+print('北交所和新三板股票数量：', num_stocks_8_4_9)
 # print(stock_symbols_8_4)
 
 print('所有股票数量：', num_stocks_60+num_stocks_00+num_stocks_30+num_stocks_68+num_stocks_8_4_9)