change cdn url

sourcecode/h5app/vue/src/views/Draw.vue

@@ -1,6 +1,6 @@
 <template>
     <div>
-        <img src="http://szugift.oss-cn-shenzhen.aliyuncs.com/share_background.jpg"
+        <img src="http://szugift.oss-cn-shenzhen.aliyuncs.com/prize_background.jpg"
              style="height: 100%; width: 100%; z-index: -99; position: absolute; left: 0; top: 0;"
         />
         <div class="transparent">

sourcecode/h5app/vue/src/views/PresentRegister.vue

@@ -381,14 +381,14 @@
             var hs = substring.charCodeAt(i);
             if (0xd800 <= hs && hs <= 0xdbff) {
                 if (substring.length > 1) {
-                    var ls = substring.charCodeAt(i + 1);
-                    var uc = ((hs - 0xd800) * 0x400) + (ls - 0xdc00) + 0x10000;
+                    let ls = substring.charCodeAt(i + 1);
+                    const uc = ((hs - 0xd800) * 0x400) + (ls - 0xdc00) + 0x10000;
                     if (0x1d000 <= uc && uc <= 0x1f77f) {
                         return true;
                     }
                 }
             } else if (substring.length > 1) {
-                var ls = substring.charCodeAt(i + 1);
+                let ls = substring.charCodeAt(i + 1);
                 if (ls == 0x20e3) {
                     return true;
                 }