芮瑶学编程-绘制红绿灯

import turtle turtle.speed(0) # 绘制灯箱 turtle.pensize(5) turtle.forward(100) turtle.left(90) turtle.forward(200) turtle.left(90) turtle.forward(100) turtle.left(90) turtle.forward(200) turtle.left(90) # 绘制第一个灯，红灯 turtle.penup() turtle.goto(50,200-35) turtle.pendown() turtle.dot(50,"red") # 绘制第二个灯，黄灯 turtle.penup() turtle.goto(50,200-95) turtle.pendown() turtle.dot(50,"yellow") # 绘制第三个灯，绿灯 turtle.penup() turtle.goto(50,200-155) turtle.pendown() turtle.dot(50,"green") # 写字 turtle.penup() turtle.goto(0,-60) turtle.pendown() turtle.write("交通灯",font=("Arial",20,"normal")) turtle.hideturtle() turtle.done()

 

继续优化，可以加上倒计时，模拟十字路口，红灯停绿灯行黄灯等一等的效果

import turtle import time turtle.speed(0) turtle.hideturtle() # 写字 turtle.penup() turtle.goto(0,-60) turtle.pendown() turtle.write("交通灯",font=("Arial",20,"normal")) turtle.penup() turtle.goto(0,0) turtle.pendown() # 绘制灯箱 turtle.pensize(5) turtle.forward(100) turtle.left(90) turtle.forward(200) turtle.left(90) turtle.forward(100) turtle.left(90) turtle.forward(200) turtle.left(90) # 绘制第一个灯，红灯 turtle.penup() turtle.goto(50,200-35) turtle.pendown() turtle.dot(50,"red") # 等待5秒，红灯灭 time.sleep(5) turtle.penup() turtle.goto(50,200-35) turtle.pendown() turtle.dot(50,"white") # 绘制第二个灯，黄灯 turtle.penup() turtle.goto(50,200-95) turtle.pendown() turtle.dot(50,"yellow") # 等待2秒，黄灯灭 time.sleep(3) turtle.penup() turtle.goto(50,200-95) turtle.pendown() turtle.dot(50,"white") # 绘制第三个灯，绿灯 turtle.penup() turtle.goto(50,200-155) turtle.pendown() turtle.dot(50,"green") turtle.done()