feat: sort camera tree

zhangzengfei

2020-09-04 b23a2a35a14b010a3b97a1b61a02ec179dfab924

 src/components/canvas/index.vue

@@ -473,6 +473,11 @@
};
</script>
<style lang="scss" scoped>
canvas{
  position: absolute;
  top: 0;
  left: 0;
}
.s-cavas {
  width: 576px;
  height: 324px;