How do you import the turtle library in Python?

In Python, the `import` statement can be used to import the `turtle` library. After importing the `turtle` library, you can use its functions and methods to draw graphics. Here is an example code for importing the `turtle` library:

import turtle

After importing a library with the `import` statement, you can use the functions and methods within the library. For example, you can use the `turtle.forward()` method to move the turtle forward and the `turtle.right()` method to turn the turtle to the right. Below is an example code using the `turtle` library to draw a square:

import turtle
# 创建一个海龟对象
my_turtle = turtle.Turtle()
# 绘制正方形
for _ in range(4):
    my_turtle.forward(100)
    my_turtle.right(90)
# 关闭窗口
turtle.done()

After drawing a shape, you can use the `turtle.done()` function to keep the window open until it is manually closed.