diff --git a/_server/editor.js b/_server/editor.js
index 3d50fa1f..52611ab8 100644
--- a/_server/editor.js
+++ b/_server/editor.js
@@ -448,7 +448,7 @@ editor.prototype.setSelectBoxFromInfo=function(thisevent){
         pos.y=thisevent.y;
         if(thisevent.x)pos.x+=thisevent.x;
         if(thisevent.images=='terrains')pos.y+=2;
-        ysize = thisevent.images.indexOf('48') === -1 ? 32 : 48;
+        ysize = thisevent.images.endsWith('48') ? 48 : 32;
     }
     var dataSelection = document.getElementById('dataSelection');
     dataSelection.style.left = pos.x * 32 + 'px';
@@ -884,7 +884,7 @@ editor.prototype.listen = function () {
         var pos = locToPos(loc);
         for (var spriter in editor.widthsX) {
             if (pos.x >= editor.widthsX[spriter][1] && pos.x < editor.widthsX[spriter][2]) {
-                var ysize = spriter.indexOf('48') === -1 ? 32 : 48;
+                var ysize = spriter.endsWith('48') ? 48 : 32;
                 loc.ysize = ysize;
                 pos.images = editor.widthsX[spriter][0];
                 pos.y = ~~(loc.y / loc.ysize);
diff --git a/_server/editor_file.js b/_server/editor_file.js
index 467cd9dc..224232ae 100644
--- a/_server/editor_file.js
+++ b/_server/editor_file.js
@@ -269,7 +269,7 @@ editor_file = function (editor, callback) {
             }
         })
 
-        var per_height = image.indexOf('48')>=0?48:32;
+        var per_height = image.endsWith('48')?48:32;
 
         var idnum=300;
         for (var y=0; y<editor.widthsX[image][3]/per_height;y++) {
diff --git a/_server/editor_mode.js b/_server/editor_mode.js
index d38a69e1..b442f75c 100644
--- a/_server/editor_mode.js
+++ b/_server/editor_mode.js
@@ -452,7 +452,7 @@ editor_mode = function (editor) {
                 return;
             }
 
-            var ysize = selectAppend.value.indexOf('48') === -1 ? 32 : 48;
+            var ysize = selectAppend.value.endsWith('48') ? 48 : 32;
             editor_mode.appendPic.imageName = value;
             var img = core.material.images[value];
             editor_mode.appendPic.toImg = img;
@@ -529,7 +529,7 @@ editor_mode = function (editor) {
             */
 
             // Step 2: 检测长宽比
-            var ysize = selectAppend.value.indexOf('48') === -1 ? 32 : 48;
+            var ysize = selectAppend.value.endsWith('48') ? 48 : 32;
             if ((image.width%32!=0 || image.height%ysize!=0) && (image.width<=128 && image.height<=ysize*4)
                 && confirm("目标长宽不符合条件，是否自动进行调整？")) {
                 var ncanvas = document.createElement('canvas').getContext('2d');
@@ -592,7 +592,7 @@ editor_mode = function (editor) {
                             sprite_ctx.drawImage(image, 0, 0);
                         }
                         else {
-                            var ysize = selectAppend.value.indexOf('48') === -1 ? 32 : 48;
+                            var ysize = selectAppend.value.endsWith('48') ? 48 : 32;
                             for (var ii = 0; ii < 3; ii++) {
                                 var newsprite = appendPicCanvas.children[ii];
                                 newsprite.style.width = (newsprite.width = Math.floor(image.width / 32) * 32) / ratio + 'px';
@@ -661,7 +661,7 @@ editor_mode = function (editor) {
                 'x': scrollLeft + e.clientX + appendPicCanvas.scrollLeft - left1.offsetLeft - appendPicCanvas.offsetLeft,
                 'y': scrollTop + e.clientY + appendPicCanvas.scrollTop - left1.offsetTop - appendPicCanvas.offsetTop,
                 'size': 32,
-                'ysize': selectAppend.value.indexOf('48') === -1 ? 32 : 48
+                'ysize': selectAppend.value.endsWith('48') ? 48 : 32;
             };
             return loc;
         }//返回可用的组件内坐标
@@ -740,7 +740,7 @@ editor_mode = function (editor) {
                 return;
             }
 
-            var ysize = selectAppend.value.indexOf('48') === -1 ? 32 : 48;
+            var ysize = selectAppend.value.endsWith('48') ? 48 : 32;
             for (var ii = 0, v; v = editor_mode.appendPic.selectPos[ii]; ii++) {
                 // var imgData = source_ctx.getImageData(v.x * 32, v.y * ysize, 32, ysize);
                 // sprite_ctx.putImageData(imgData, ii * 32, sprite.height - ysize);