diff --git a/libs/actions.js b/libs/actions.js
index f9199dde..d43972f8 100644
--- a/libs/actions.js
+++ b/libs/actions.js
@@ -308,7 +308,7 @@ actions.prototype.ondown = function (loc) {
 
     // 画板
     if (core.status.played && (core.status.event||{}).id=='paint') {
-        this.ondownPaint(loc.x, loc.y);
+        this.ondownPaint(loc.x/core.domStyle.scale, loc.y/core.domStyle.scale);
         return;
     }
 
@@ -346,7 +346,7 @@ actions.prototype.onmove = function (loc) {
 
     // 画板
     if (core.status.played && (core.status.event||{}).id=='paint') {
-        this.onmovePaint(loc.x, loc.y)
+        this.onmovePaint(loc.x/core.domStyle.scale, loc.y/core.domStyle.scale)
         return;
     }
 
diff --git a/main.js b/main.js
index f994fcd0..45ccd438 100644
--- a/main.js
+++ b/main.js
@@ -381,8 +381,9 @@ main.dom.data.ontouchmove = function (e) {
 }
 
 ////// 手指离开触摸屏时 //////
-main.dom.data.ontouchend = function () {
+main.dom.data.ontouchend = function (e) {
     try {
+        e.preventDefault();
         main.core.onup();
     } catch (e) {
     }