📜  Python中的 turtle.tracer()函数

📅  最后修改于: 2022-05-13 01:55:15.355000             🧑  作者: Mango

Python中的 turtle.tracer()函数

turtle 模块以面向对象和面向过程的方式提供海龟图形原语。因为它使用 Tkinter 作为底层图形,所以它需要安装一个支持 Tk 的Python版本。

海龟.tracer()

此函数用于打开或关闭海龟动画并设置更新图纸的延迟。

以下是上述方法的实现以及一些示例:

示例 1:

Python3
# importing package
import turtle
  
# check default value
print(turtle.tracer())


Python3
# importing package
import turtle
  
# loop for motion with
# default tracer as 1
for i in range(20):
    turtle.forward(1+1*i)
    turtle.right(45)
  
# set tracer values as (2,0)
# 2 -> for screen update
# 0 -> delay
turtle.tracer(n=2, delay=0)
  
# loop for motion with
# above tracer values
for i in range(20, 40):
    turtle.forward(1+1*i)
    turtle.right(45)
  
# set tracer values as (1,50)
# 1 -> for screen update
# 50 -> delay
turtle.tracer(n=1, delay=50)
  
# loop for motion with
# above tracer values
for i in range(40, 60):
    turtle.forward(1+1*i)
    turtle.right(45)


输出 :

1

示例 2:

Python3

# importing package
import turtle
  
# loop for motion with
# default tracer as 1
for i in range(20):
    turtle.forward(1+1*i)
    turtle.right(45)
  
# set tracer values as (2,0)
# 2 -> for screen update
# 0 -> delay
turtle.tracer(n=2, delay=0)
  
# loop for motion with
# above tracer values
for i in range(20, 40):
    turtle.forward(1+1*i)
    turtle.right(45)
  
# set tracer values as (1,50)
# 1 -> for screen update
# 50 -> delay
turtle.tracer(n=1, delay=50)
  
# loop for motion with
# above tracer values
for i in range(40, 60):
    turtle.forward(1+1*i)
    turtle.right(45)

输出 :