diff --git a/libs/actions.js b/libs/actions.js
index 7dd8c71c..7d8ba631 100644
--- a/libs/actions.js
+++ b/libs/actions.js
@@ -1979,7 +1979,7 @@ actions.prototype.clickSyncSave = function (x,y) {
                 core.download(core.firstData.name+"_"+core.formatDate2(new Date())+".h5route", JSON.stringify({
                     'name': core.firstData.name,
                     'hard': core.status.hard,
-                    'seed': core.getFlag('seed'),
+                    'seed': core.getFlag('__seed__'),
                     'route': core.encodeRoute(core.status.route)
                 }));
                 break;
@@ -2244,7 +2244,7 @@ actions.prototype.clickReplay = function (x, y) {
             case 0:
                 {
                     core.ui.closePanel();
-                    var hard=core.status.hard, seed = core.getFlag('seed');
+                    var hard=core.status.hard, seed = core.getFlag('__seed__');
                     core.startGame(hard, seed, core.clone(core.status.route));
                     break;
                 }
@@ -2268,7 +2268,7 @@ actions.prototype.clickReplay = function (x, y) {
                 core.download(core.firstData.name+"_"+core.formatDate2(new Date())+".h5route", JSON.stringify({
                     'name': core.firstData.name,
                     'hard': core.status.hard,
-                    'seed': core.getFlag('seed'),
+                    'seed': core.getFlag('__seed__'),
                     'route': core.encodeRoute(core.status.route)
                 }));
                 break;
diff --git a/libs/control.js b/libs/control.js
index 6b111b4e..9b660230 100644
--- a/libs/control.js
+++ b/libs/control.js
@@ -2256,7 +2256,7 @@ control.prototype.doSL = function (id, type) {
             if (data.version != core.firstData.version) {
                 // core.drawTip("存档版本不匹配");
                 if (confirm("存档版本不匹配！\n你想回放此存档的录像吗？\n可以随时停止录像播放以继续游戏。")) {
-                    core.startGame(data.hard, data.hero.flags.seed, core.decodeRoute(data.route));
+                    core.startGame(data.hard, data.hero.flags.__seed__, core.decodeRoute(data.route));
                 }
                 return;
             }
@@ -2295,7 +2295,7 @@ control.prototype.doSL = function (id, type) {
                 return;
             }
             var route = core.subarray(core.status.route, core.decodeRoute(data.route));
-            if (!core.isset(route) || data.hero.flags.seed!=core.getFlag('seed')) {
+            if (!core.isset(route) || data.hero.flags.__seed__!=core.getFlag('__seed__')) {
                 core.drawTip("无法从此存档回放录像");
                 return;
             }
diff --git a/libs/events.js b/libs/events.js
index d01d6c8b..ea82e767 100644
--- a/libs/events.js
+++ b/libs/events.js
@@ -88,8 +88,8 @@ events.prototype.startGame = function (hard, seed, route, callback) {
         core.status.isStarting = true;
 
         if (core.isset(seed)) {
-            core.setFlag('seed', seed);
-            core.setFlag('rand', seed);
+            core.setFlag('__seed__', seed);
+            core.setFlag('__rand__', seed);
         }
         else core.utils.__init_seed();
 
@@ -195,7 +195,7 @@ events.prototype.gameOver = function (ending, fromReplay, norank) {
                 'name': core.firstData.name,
                 'version': core.firstData.version,
                 'hard': core.status.hard,
-                'seed': core.getFlag('seed'),
+                'seed': core.getFlag('__seed__'),
                 'route': core.encodeRoute(core.status.route)
             }
             core.download(core.firstData.name+"_"+core.formatDate2(new Date())+".h5route", JSON.stringify(obj));
@@ -238,7 +238,7 @@ events.prototype.gameOver = function (ending, fromReplay, norank) {
             formData.append('experience', core.status.hero.experience);
             formData.append('steps', core.status.hero.steps);
             formData.append('norank', norank||0);
-            formData.append('seed', core.getFlag('seed'));
+            formData.append('seed', core.getFlag('__seed__'));
             formData.append('totalTime', Math.floor(core.status.hero.statistics.totalTime/1000));
             formData.append('route', core.encodeRoute(core.status.route));
             formData.append('base64', 1);
@@ -702,12 +702,12 @@ events.prototype.doAction = function() {
         case "setFg": // 颜色渐变
             if (data.async) {
                 core.setFg(data.color, data.time);
-                core.setFlag('color', data.color||null);
+                core.setFlag('__color__', data.color||null);
                 this.doAction();
             }
             else {
                 core.setFg(data.color, data.time, function() {
-                    core.setFlag('color', data.color||null);
+                    core.setFlag('__color__', data.color||null);
                     core.events.doAction();
                 });
             }
@@ -715,8 +715,8 @@ events.prototype.doAction = function() {
         case "setWeather": // 更改天气
             core.setWeather(data.name, data.level);
             if (core.isset(data.name))
-                core.setFlag('weather', [data.name, data.level]);
-            else core.setFlag('weather', null);
+                core.setFlag('__weather__', [data.name, data.level]);
+            else core.setFlag('__weather__', null);
             this.doAction();
             break;
         case "openDoor": // 开一个门，包括暗墙
@@ -1336,7 +1336,7 @@ events.prototype.changeFloor = function (floorId, stair, heroLoc, time, callback
             }
 
             // 不存在事件时，更改画面色调
-            var color = core.getFlag('color', null);
+            var color = core.getFlag('__color__', null);
             if (!core.isset(color) && core.isset(core.status.maps[floorId].color)) {
                 color = core.status.maps[floorId].color;
             }
@@ -1356,7 +1356,7 @@ events.prototype.changeFloor = function (floorId, stair, heroLoc, time, callback
             }
 
             // 更改天气
-            var weather = core.getFlag('weather', null);
+            var weather = core.getFlag('__weather__', null);
             if (!core.isset(weather) && core.isset(core.status.maps[floorId].weather)) {
                 weather = core.status.maps[floorId].weather;
             }
@@ -1912,7 +1912,7 @@ events.prototype.uploadCurrent = function (username) {
     formData.append('money', core.status.hero.money);
     formData.append('experience', core.status.hero.experience);
     formData.append('steps', core.status.hero.steps);
-    formData.append('seed', core.getFlag('seed'));
+    formData.append('seed', core.getFlag('__seed__'));
     formData.append('totalTime', Math.floor(core.status.hero.statistics.totalTime/1000));
     formData.append('route', core.encodeRoute(core.status.route));
     formData.append('deler', 'current');
diff --git a/libs/utils.js b/libs/utils.js
index 24c1eaf9..72ce81f5 100644
--- a/libs/utils.js
+++ b/libs/utils.js
@@ -486,8 +486,8 @@ utils.prototype.__init_seed = function () {
     rand = this.__next_rand(rand);
     rand = this.__next_rand(rand);
     rand = this.__next_rand(rand);
-    core.setFlag('seed', rand);
-    core.setFlag('rand', rand);
+    core.setFlag('__seed__', rand);
+    core.setFlag('__rand__', rand);
 }
 
 utils.prototype.__next_rand = function (_rand) {
@@ -497,9 +497,9 @@ utils.prototype.__next_rand = function (_rand) {
 }
 
 utils.prototype.rand = function (num) {
-    var rand = core.getFlag('rand');
+    var rand = core.getFlag('__rand__');
     rand = this.__next_rand(rand);
-    core.setFlag('rand', rand);
+    core.setFlag('__rand__', rand);
     var ans = rand/2147483647;
     if (core.isset(num) && num>0)
         return Math.floor(ans*num);