左下三角形#
nested_loops_bottom_left_triangle.py#
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 | """ Example "Arcade" library code. Showing how to do nested loops. If Python and Arcade are installed, this example can be run from the command line with: python -m arcade.examples.nested_loops_bottom_left_triangle """ # Library imports import arcade COLUMN_SPACING = 20 ROW_SPACING = 20 LEFT_MARGIN = 110 BOTTOM_MARGIN = 110 # Open the window and set the background arcade.open_window(400, 400, "Complex Loops - Bottom Left Triangle") arcade.set_background_color(arcade.color.WHITE) # Start the render process. This must be done before any drawing commands. arcade.start_render() # Loop for each row for row in range(10): # Loop for each column # Change the number of columns depending on the row we are in for column in range(10 - row): # Calculate our location x = column * COLUMN_SPACING + LEFT_MARGIN y = row * ROW_SPACING + BOTTOM_MARGIN # Draw the item arcade.draw_circle_filled(x, y, 7, arcade.color.AO) # Finish the render. arcade.finish_render() # Keep the window up until someone closes it. arcade.run() |