优化了编辑供应商时，类别显示为0的问题

src/xt_pages/supply/components/addSupply.vue

         this.title = "编辑供应商";
         this.supplier.supplierCode = data.SupplierCode;
         this.supplier.supplierName = data.SupplierName;
-        this.supplier.supplierType = data.SupplierType;
-
+        if (data.SupplierType == 0){
+          this.supplier.supplierType = ""
+        }else {
+          this.supplier.supplierType = data.SupplierType;
+        }
         this.supplier.vatRate = data.VatRate;
         this.supplier.number = data.Number;
         this.supplier.bank = data.Bank;