diff --git a/src/views/system/trainingItem/index.vue b/src/views/system/trainingItem/index.vue
index e55671c..a697dd0 100644
--- a/src/views/system/trainingItem/index.vue
+++ b/src/views/system/trainingItem/index.vue
@@ -1304,6 +1304,9 @@ export default {
       if (!this.form.trainingItemSort) {
         this.form.trainingItemSort = null;
       }
+      if (this.form.buyFlag == "") {
+        this.form.buyFlag = null;
+      }
       this.$refs["form"].validate(valid => {
         if (valid) {
           if (this.form.trainingItemStartTime) {