排量增加字母正则校验

src/views/Letter/Letter.vue

@@ -4397,6 +4397,14 @@ export default {
       },
       deep: true
     },
+    "carInfo.enginedesc":{
+      handler(val) {
+        if (val) {
+          this.carInfo.enginedesc = val.replace(/[A-Za-z]/g,'');
+        }
+      },
+      deep: true
+    },
     "ownerInfo.mobile":{
       handler(val) {
         if (val) {