fix 学生人数

src/views/activeProgram/program.vue

@@ -528,12 +528,12 @@ export default {
             }
 
             if (this.isMusicTheory) {
-                if (!(this.checkboxSelectIds.length >= 1 && this.checkboxSelectIds.length <= this.studentNum)) {
+                if (!(this.checkboxSelectIds.length >= 1 && this.checkboxSelectIds.length <= this.form.studentNum)) {
                     this.$toast(`请选择1-${this.form.studentNum}名学生，当前选择${this.checkboxSelectIds.length}名`);
                     return;
                 }
             } else {
-                if (this.checkboxSelectIds.length != this.studentNum) {
+                if (this.checkboxSelectIds.length != this.form.studentNum) {
                     this.$toast(`请选择学生${this.form.studentNum}名，当前选择${this.checkboxSelectIds.length}名`);
                     return;
                 }