fix: 修改付款条件错误提示为“付款条件不能为空”

src/views/purchasingManage/purchaseOrder/components/addDialogNew.vue

@@ -2344,7 +2344,7 @@
       getValidate() {
 
         if (!this.form.paymentConditionName) {
-          this.$message.error('请选择付款条件');
+          this.$message.error('付款条件不能为空');
         }
 
         const arr = [