This point is the Stagato.

"Tap tone", also known as pause tone and staccato tone, is marked with small dots and inverted triangles. It is usually written above or below the note, indicating that the notes should be sung and played separately from each other. Short, jumpy.

According to different marks, it can be divided into two types: long beats and short beats. Long beats are marked with a small dot, played for half the note's duration; short beats are marked with an inverted triangle, played for a quarter of the note's duration.