Turtle graphics window does not appear vscode

Question

I am using vscode. Only a simple turtle statement can show the graphic window effect. Why can't the graphics windows be displayed?

from turtle import *

def star(sidelength):
    '''Draws a 5-pointed star of a
    given sidelength'''
    for i in range(5):
        forward(sidelength)
        right(144) #why this angle??

def starSpiral():
    '''Draws a spiral of stars'''
    length = 5
    for i in range(60):
        star(length)
        right(5)
        length += 5

After running, nothing came out.

Answer 1

According to the information you provided, I ran it on my computer and modified the code:

1.Draws a 5-pointed star of a given sidelength:

For drawing a five-pointed star with a given side length, we need to give it an input value:

import turtle
def star():
    sidelength = int(input("Please input sidelength："))
    turtle.begin_fill()
    i = 1
    for i in range(5):
        turtle.forward(sidelength)
        turtle.right(144)
        i += 1
turtle.end_fill()
star()

Run:

2. Draws a spiral of stars:

import turtle   
def starSpiral():
    '''Draws a spiral of stars'''
    for i in range(60):
        turtle.forward(5*i)
        turtle.left(144)
starSpiral()

run:

3. About "right(144) #why this angle?":

   It means to turn 144 degrees to the right, because each angle of the five-pointed star is 36 degrees, so the angle we need to rotate when drawing is 180-36=144 degree.