修改可开和数量逻辑修改

src/views/contract/exchange-store.vue

@@ -529,7 +529,7 @@ export default {
         // console.info(this.form.lever_rate)
         // console.info(this.margin)
         if (!this.form.lever_rate || !this.marginBuy) return 0;
-        let p=this.marginBuy*this.form.lever_rate;
+        let p = Math.round(this.marginBuy*this.form.lever_rate);
 
         this.buyform.amount=p;
         return p
@@ -538,7 +538,7 @@ export default {
         // console.info(this.form.lever_rate)
         // console.info(this.marginSell)
         if (!this.form.lever_rate || !this.marginSell) return 0;
-        let p=this.marginSell*this.form.lever_rate;
+        let p = Math.round(this.marginSell*this.form.lever_rate);
 		
         this.sellform.amount=p;
         return p