增加相机宽度，并铺满

src/views/camera.vue

@@ -1,7 +1,8 @@
 <template>
     <div :style="{position: relative,width:w,height:h}">
         <video
-            :style="{ height: h,}"
+            :style="{ height: h,width:w}"
+            style="object-fit: fill"
             :id="`camera${id}`"
             autoplay
             muted