use only one card pool

main.py

@@ -166,8 +166,8 @@ def read_all_the_phone_number():
 
 
 def start_book():
-    slot_number = 3
-    slot_sum = 12
+    slot_number = 1
+    slot_sum = 22
     for i in range(slot_number, slot_sum + 1):
         card_pool.reset()
         logger.info("will switch to " + str(i))
@@ -213,5 +213,5 @@ if __name__ == '__main__':
     logger.addHandler(logging.StreamHandler(stream=sys.stdout))
     start_listen()
     start_book()
-    # card_pool.switch_to_slot(31)
+    # card_pool.switch_to_slot(12)