📜  Python中的 turtle.distance()函数

📅  最后修改于: 2022-05-13 01:55:17.166000             🧑  作者: Mango

Python中的 turtle.distance()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.距离()

此方法用于以海龟步长为单位返回海龟到 (x,y) 的距离。

可以以不同的格式调用此方法,如下所示:

distance(x, y) # two coordinates

distance((x, y)) # a pair (tuple) of coordinates

distance(vec) # e.g. as returned by pos()

distance(mypen) # where mypen is another turtle

以下是上述方法的实现以及一些示例:

示例 1:

Python3
# importing package
import turtle
 
# print the distance
# before any motion
print(turtle.distance())
 
# forward turtle by 100
turtle.forward(100)
 
# print the distance
# after a motion
print(turtle.distance())


Python3
# importing package
import turtle
 
# print distance (default)
print(turtle.distance())
 
for i in range(4):
     
    # draw one quadrant
    turtle.circle(50,90)
     
    # print distance
    print(turtle.distance())


Python3
# importing package
import turtle
 
# print distance with arguments
# in different formats
print(turtle.distance(3,4))
print(turtle.distance((3,4)))
print(turtle.distance((30.0,40.0)))


输出 :

0.0
100.0

示例 2:

Python3

# importing package
import turtle
 
# print distance (default)
print(turtle.distance())
 
for i in range(4):
     
    # draw one quadrant
    turtle.circle(50,90)
     
    # print distance
    print(turtle.distance())

输出 :

0.0
70.7106781187
100.0
70.7106781187
1.41063873243e-14 

示例 3:

Python3

# importing package
import turtle
 
# print distance with arguments
# in different formats
print(turtle.distance(3,4))
print(turtle.distance((3,4)))
print(turtle.distance((30.0,40.0)))

输出 :

5.0
5.0
50.0