修复letdrw缺陷

src/business/letdrw/views/Drv.vue

@@ -485,10 +485,12 @@ export default {
   created: function () {},
   computed:{
     opn1cur(){
-      return this.model.ledgrp.cbs.nom1.cur
+      this.model.ledgrp.cbs.opn1.cur = this.model.ledgrp.cbs.nom1.cur
+      return this.model.ledgrp.cbs.opn1.cur
     },
     opn1amt(){
-      return this.model.ledgrp.cbs.nom1.amt * (1+this.model.ledgrp.rec.nomtop/100)
+      this.model.ledgrp.cbs.opn1.amt = this.model.ledgrp.cbs.nom1.amt * (1+this.model.ledgrp.rec.nomtop/100)
+      return this.model.ledgrp.cbs.opn1.amt
     },
     getDoctypcod(){
       this.model.bedgrp.rec.doctypcod = this.model.ledgrp.rec.avbby