Merge branch 'paino_change' into more_function

src/teacher/piano-room/model/student-info/student-confirm.tsx

@@ -43,14 +43,20 @@ export default defineComponent({
       const suffix: number = addStudents.length - removeStudents.length
       console.log(suffix, singleCourseTime, this.courseInfo)
       const type = suffix >= 0 ? 'add' : 'remove'
+      console.log(
+        addStudents,
+        removeStudents,
+        'addStudents',
+        suffix,
+        type,
+        studentCount
+      )
       // n * (n -1) * 分钟数 * 课次数
       // 总分钟数
       const allMinutes = studentCount * singleCourseTime
       //
       const reTime = Math.abs(
-        (Math.abs(suffix + studentCount) + 1) *
-          Math.abs(suffix + studentCount) *
-          singleCourseTime
+        Math.abs(suffix + studentCount) * singleCourseTime
       )
       return {
         type,