diff --git a/libs/control.js b/libs/control.js
index 7a1b46a6..e86f4147 100644
--- a/libs/control.js
+++ b/libs/control.js
@@ -2873,6 +2873,7 @@ control.prototype.setToolbarButton = function (useButton) {
         ["btn1","btn2","btn3","btn4","btn5","btn6","btn7","btn8"].forEach(function (t) {
             core.statusBar.image[t].style.display = 'block';
         })
+        main.statusBar.image.btn8.style.filter = core.getLocalStorage('altKey') ? 'sepia(1) contrast(1.5)' : '';
     }
     else {
         ["btn1","btn2","btn3","btn4","btn5","btn6","btn7","btn8"].forEach(function (t) {
diff --git a/libs/events.js b/libs/events.js
index 4ca79588..70ba3dca 100644
--- a/libs/events.js
+++ b/libs/events.js
@@ -1903,6 +1903,11 @@ events.prototype._action_choices = function (data, x, y, prefix) {
         }
         core.status.event.timeout = new Date().getTime() + (data.timeout || 0);
     }
+    for (var i = 0; i < data.choices.length; i++) {
+        if (typeof data.choices[i] === 'string')
+            data.choices[i] = {"text": data.choices[i]};
+        data.choices[i].text = core.replaceText(data.choices[i].text, prefix);
+    }
     core.ui.drawChoices(core.replaceText(data.text, prefix), data.choices);
 }
 
diff --git a/main.js b/main.js
index 5c53adcf..fde2a3d5 100644
--- a/main.js
+++ b/main.js
@@ -681,42 +681,51 @@ main.dom.hard.onclick = function () {
 ////// 手机端的按钮1-7 //////
 main.statusBar.image.btn1.onclick = function (e) {
     e.stopPropagation();
-    main.core.onkeyUp({"keyCode": 49});
+    main.core.onkeyUp({"keyCode": 49, "altKey": core.getLocalStorage('altKey')});
 };
 
 main.statusBar.image.btn2.onclick = function (e) {
     e.stopPropagation();
-    main.core.onkeyUp({"keyCode": 50});
+    main.core.onkeyUp({"keyCode": 50, "altKey": core.getLocalStorage('altKey')});
 };
 
 main.statusBar.image.btn3.onclick = function (e) {
     e.stopPropagation();
-    main.core.onkeyUp({"keyCode": 51});
+    main.core.onkeyUp({"keyCode": 51, "altKey": core.getLocalStorage('altKey')});
 };
 
 main.statusBar.image.btn4.onclick = function (e) {
     e.stopPropagation();
-    main.core.onkeyUp({"keyCode": 52});
+    main.core.onkeyUp({"keyCode": 52, "altKey": core.getLocalStorage('altKey')});
 };
 
 main.statusBar.image.btn5.onclick = function (e) {
     e.stopPropagation();
-    main.core.onkeyUp({"keyCode": 53});
+    main.core.onkeyUp({"keyCode": 53, "altKey": core.getLocalStorage('altKey')});
 };
 
 main.statusBar.image.btn6.onclick = function (e) {
     e.stopPropagation();
-    main.core.onkeyUp({"keyCode": 54});
+    main.core.onkeyUp({"keyCode": 54, "altKey": core.getLocalStorage('altKey')});
 };
 
 main.statusBar.image.btn7.onclick = function (e) {
     e.stopPropagation();
-    main.core.onkeyUp({"keyCode": 55});
+    main.core.onkeyUp({"keyCode": 55, "altKey": core.getLocalStorage('altKey')});
 };
 
 main.statusBar.image.btn8.onclick = function (e) {
     e.stopPropagation();
-    main.core.onkeyUp({"keyCode": 56});
+    if (core.getLocalStorage('altKey')) {
+        core.removeLocalStorage('altKey');
+        core.drawTip("Alt模式已关闭。");
+        main.statusBar.image.btn8.style.filter = '';
+    }
+    else {
+        core.setLocalStorage('altKey', true);
+        core.drawTip("Alt模式已开启；此模式下1~7按钮视为Alt+1~7。");
+        main.statusBar.image.btn8.style.filter = 'sepia(1) contrast(1.5)';
+    }
 };
 
 ////// 点击“开始游戏”时 //////
diff --git a/project/materials/icons.png b/project/materials/icons.png
index 349e6b68..4e00f6c3 100644
Binary files a/project/materials/icons.png and b/project/materials/icons.png differ
diff --git a/project/materials/icons_old.png b/project/materials/icons_old.png
index 311b6392..94b6043a 100644
Binary files a/project/materials/icons_old.png and b/project/materials/icons_old.png differ