Introduction to the "TURTLE" library in python

Introduction to the "TURTLE" library in python Python's 'TURTLE' Class Library is a graphical programming tool that can help beginners understand basic programming concepts by drawing color graphics and patterns.It is mainly used to draw simple graphics, such as lines, shapes, animations, etc., and operates and control drawing behavior through semantic function calls. The design of 'Turtle' class library is inspired by Turtle Graphics, which is a method that translates the graphics command into a machine instruction.Similar to the real turtle, it can move through the operations of forward, backward, left, and right, and leave traces during the movement. The following is an example code that uses the shape of the "TURTLE 'class library: python import turtle # Create a canvas called 'Screen' and set the background color screen = turtle.Screen() screen.bgcolor("black") # Create a drawing object named 'Turtle' and set its shape as "turtle" turtle = turtle.Turtle() turtle.shape ("turtle") # Set the shape of "TURTLE" turtle.color ("White") # Set the color "White" # Draw a square for _ in range(4): turtle.forward(100) turtle.right(90) # 结 结 turtle.done() In the above code, we need to introduce the "Turtle 'class library through the` Import Turtle` statement.Then, create a canvas called 'Screen' by creating a 'turtle.screen ()' object, and set its background color to black. Next, create a drawing object called 'TURTLE' by creating a 'turtle.turtle ()' object, and set its shape to turtle.shape ("turtle").Then set the drawing color to white with 'Turtle.color ("White")'. Then use a circular sentence to draw a square.By calling 'TURTLE.Forward (100)', let the turtles move forward 100 units, call 'turtle.richt (90)' to turn the turtle 90 degrees right and repeat 4 times to complete a square drawing. Finally, call the 'TURTLE.DONE ()' to end the drawing program. The 'Turtle' Library also provides many other drawing commands, such as drawing circular, drawing polygon, changing line color and width, and so on.You can use the corresponding commands to achieve more complex drawing effects according to specific needs. In short, Python's 'TURTLE' class library is a good tool for beginners to program programming with its simple and easy -to -learn.By drawing simple graphics, you can help beginners understand the basic concepts of programming and stimulate their interest in programming.