优化

src/components/Upload.vue

@@ -194,9 +194,9 @@ export default {
       this.dialogVisible = true;
     },
     handleBeforeUpload(file) {
-      const isLt100M = file.size / 1024 / 1024 > 0.5 && file.size / 1024 / 1024 < 5;
+      const isLt100M = file.size / 1024 / 1024 < 5;
       if (!isLt100M) {
-        this.$message.error("上传照片大小要在0.5MB ~ 5MB之间哦!");
+        this.$message.error("上传照片大小要在5MB以内哦!");
         return false;
       }
       this.loading = this.$loading({