diff --git a/libs/actions.js b/libs/actions.js
index 7c8a1404..ecccf697 100644
--- a/libs/actions.js
+++ b/libs/actions.js
@@ -309,6 +309,10 @@ actions.prototype.keyUp = function(keyCode) {
             if (core.status.heroStop)
                 core.doSL("autoSave", "load");
             break;
+        case 66: // B
+            if (core.status.heroStop)
+                core.ui.drawStatistics();
+            break;
         case 83: // S
             if (core.status.heroStop)
                 core.save(true);
diff --git a/libs/control.js b/libs/control.js
index f5d1b7d2..c3c94630 100644
--- a/libs/control.js
+++ b/libs/control.js
@@ -288,6 +288,7 @@ control.prototype.resetStatus = function(hero, hard, floorId, route, maps, value
             'totalTime': totalTime,
             'currTime': 0,
             'hp': 0,
+            "battle": 0,
             'battleDamage': 0,
             'poisonDamage': 0,
             'extraDamage': 0,
diff --git a/libs/ui.js b/libs/ui.js
index 0fd8403a..a2eec3d3 100644
--- a/libs/ui.js
+++ b/libs/ui.js
@@ -1440,10 +1440,31 @@ ui.prototype.drawBookDetail = function (index) {
     var enemyId=enemy.id;
     var hints=core.enemys.getSpecialHint(core.material.enemys[enemyId]);
 
-
     if (hints.length==0)
         hints.push("该怪物无特殊属性。");
 
+    // 吸血怪的最低生命值
+    if (core.enemys.hasSpecial(core.material.enemys[enemyId].special, 11)) {
+        var damage = core.getDamage(enemyId);
+        if (damage != null) {
+            // 二分HP
+            var start = 1, end = 100 * damage;
+            var nowHp = core.status.hero.hp;
+            while (start<end) {
+                var mid = Math.floor((start+end)/2);
+                core.status.hero.hp = mid;
+                if (core.canBattle(enemyId)) end = mid;
+                else start = mid+1;
+            }
+            core.status.hero.hp = start;
+            if (core.canBattle(enemyId)) {
+                hints.push("");
+                hints.push("打死该怪物最低需要生命值："+core.formatBigNumber(start));
+            }
+            core.status.hero.hp = nowHp;
+        }
+    }
+
     hints.push("");
     var criticals = core.enemys.nextCriticals(enemyId, 10).map(function (v) {
         return v[0]+":"+v[1];
@@ -2300,7 +2321,7 @@ ui.prototype.drawStatistics = function () {
         +"，总游戏时长"+formatTime(statistics.totalTime)
         +"。\n瞬间移动次数："+statistics.moveDirectly+"，共计少走"+statistics.ignoreSteps+"步。"
         +"\n\n总计通过血瓶恢复生命值为"+core.formatBigNumber(statistics.hp)+"点。\n\n"
-        +"总计受到的伤害为"+core.formatBigNumber(statistics.battleDamage+statistics.poisonDamage+statistics.extraDamage)
+        +"总计打死了"+statistics.battle+"个怪物，受到的伤害为"+core.formatBigNumber(statistics.battleDamage+statistics.poisonDamage+statistics.extraDamage)
         +"，其中战斗伤害"+core.formatBigNumber(statistics.battleDamage)+"点"
         +(core.flags.enableDebuff?("，中毒伤害"+core.formatBigNumber(statistics.poisonDamage)+"点"):"")
         +"，领域/夹击/阻击/血网伤害"+core.formatBigNumber(statistics.extraDamage)+"点。",
diff --git a/project/functions.js b/project/functions.js
index 559d7846..454cd03f 100644
--- a/project/functions.js
+++ b/project/functions.js
@@ -137,6 +137,7 @@ functions_d6ad677b_427a_4623_b50f_a445a3b0ef8a =
 
 	// 记录
 	core.status.hero.statistics.battleDamage += damage;
+	core.status.hero.statistics.battle++;
 
 	if (core.status.hero.hp<=0) {
 		core.status.hero.hp=0;
@@ -366,7 +367,7 @@ functions_d6ad677b_427a_4623_b50f_a445a3b0ef8a =
 		[8, "反击", "战斗时，怪物每回合附加角色攻击的"+Math.floor(100*core.values.counterAttack||0)+"%作为伤害，无视角色防御"],
 		[9, "净化", "战斗前，怪物附加勇士魔防的"+core.values.purify+"倍作为伤害"],
 		[10, "模仿", "怪物的攻防和勇士攻防相等"],
-		[11, "吸血", function (enemy) {return "战斗前，怪物首先吸取角色的"+Math.floor(100*enemy.value||0)+"%生命作为伤害"+(enemy.add?"，并把伤害数值加到自身生命上":"");}],
+		[11, "吸血", function (enemy) {return "战斗前，怪物首先吸取角色的"+Math.floor(100*enemy.value||0)+"%生命（约" + Math.floor((enemy.value||0)*core.getStatus('hp')) + "点）作为伤害"+(enemy.add?"，并把伤害数值加到自身生命上":"");}],
 		[12, "中毒", "战斗后，勇士陷入中毒状态，每一步损失生命"+core.values.poisonDamage+"点"],
 		[13, "衰弱", "战斗后，勇士陷入衰弱状态，攻防暂时下降"+(core.values.weakValue>=1?core.values.weakValue+"点":parseInt(core.values.weakValue*100)+"%")],
 		[14, "诅咒", "战斗后，勇士陷入诅咒状态，战斗无法获得金币和经验"],