diff --git a/NineChess/src/config.h b/NineChess/src/config.h
index bd9aeebc..6ed73df1 100644
--- a/NineChess/src/config.h
+++ b/NineChess/src/config.h
@@ -3,7 +3,7 @@
 
 //#define DEBUG
 
-//#define RANDOM_MOVE
+#define RANDOM_MOVE
 
 #define DEAL_WITH_HORIZON_EFFECT
 
diff --git a/NineChess/src/ninechessai_ab.cpp b/NineChess/src/ninechessai_ab.cpp
index 8bca8e7d..4a56822a 100644
--- a/NineChess/src/ninechessai_ab.cpp
+++ b/NineChess/src/ninechessai_ab.cpp
@@ -607,7 +607,7 @@ int NineChessAi_ab::alphaBetaPruning(int depth)
             openingBook.push_back(chess_.getHash());
         } else {
             // 暂时在此处清空开局库
-            clearBookHashMap();
+            openingBook.clear();
         }
     }
 #endif
@@ -653,6 +653,10 @@ int NineChessAi_ab::alphaBetaPruning(int depth, int alpha, int beta, Node *node)
     // 临时增加的深度，克服水平线效应用
     int epsilon = 0;
 
+#ifdef BOOK_LEARNING
+    bool hitBook = false;   // 是否在开局库中出现过
+#endif
+
 #ifdef HASH_MAP_ENABLE
     // 哈希值
     HashValue hashValue;
@@ -711,10 +715,11 @@ int NineChessAi_ab::alphaBetaPruning(int depth, int alpha, int beta, Node *node)
     // 检索开局库
     HashValue hashValue;
 
-    if (chessContext->turn == NineChess::PLAYER1 &&
-        findBookHash(hash, hashValue)) {
-        // 对走棋一方扣分
-        node->value--;
+    if(findBookHash(hash, hashValue)) {
+        if (chessContext->turn == NineChess::PLAYER2) {
+            // 是否需对后手扣分
+            hitBook = true;
+        }
     }
 #endif
 
@@ -940,6 +945,12 @@ int NineChessAi_ab::alphaBetaPruning(int depth, int alpha, int beta, Node *node)
     // 排序子节点树
     sortLegalMoves(node);   // (13%)
 
+#ifdef BOOK_LEARNING
+    if (hitBook) {
+        node->value++;
+    }
+#endif
+
     // 返回
     return node->value;
 }