Python 海龟图形：如何向上移动标签？

我正在学习Python并试图编辑代码，该代码有以下错误：

每个高度标签的顶部部分由其条形图覆盖。您能否修改牵引杆的

代码，稍微向上移动标签，但不改变杆？提示：在多边形填充序列期间无法绘制标签

我试图定义一个新函数，但没有成功。你能找到错误/编辑吗

def drawBar(t, height):
    """ Get turtle t to draw one bar, of height. """
    t.begin_fill()               # start filling this shape
    t.left(90)
    t.forward(height)
    t.write(str(height))
    t.right(90)
    t.forward(40)
    t.right(90)
    t.forward(height)
    t.left(90)
    t.end_fill()                 # stop filling this shape

xs = [48, 117, 200, 240, 160, 260, 220]  # here is the data
maxheight = max(xs)
numbars = len(xs)
border = 10

wn = turtle.Screen()             # Set up the window and its attributes
wn.setworldcoordinates(0-border, 0-border, 40*numbars+border, maxheight+border)
wn.bgcolor("lightgreen")

tess = turtle.Turtle()           # create tess and set some attributes
tess.color("blue")
tess.fillcolor("red")
tess.pensize(3)

for a in xs:
    drawBar(tess, a)

wn.exitonclick()

若你们想向上移动，那个么设置画笔，向前移动，写文本，向后移动，向下移动

t.penup()
t.forward(2)
t.write(str(height))
t.forward(-2)
t.pendown() 


最小工作码

import turtle

def drawBar(t, height):
    """ Get turtle t to draw one bar, of height. """
    t.begin_fill()               # start filling this shape
    t.left(90)
    t.forward(height)
    
    t.penup()
    t.forward(2)
    t.write(str(height))
    t.forward(-2)
    t.pendown()

    t.right(90)
    t.forward(40)
    t.right(90)
    t.forward(height)
    t.left(90)
    t.end_fill()              # stop filling this shape

xs = [48, 117, 200, 240, 160, 260, 220]  # here is the data
maxheight = max(xs)
numbars = len(xs)
border = 10

wn = turtle.Screen()             # Set up the window and its attributes
wn.setworldcoordinates(0-border, 0-border, 40*numbars+border, maxheight+border)
wn.bgcolor("lightgreen")

tess = turtle.Turtle()           # create tess and set some attributes
tess.color("blue")
tess.fillcolor("red")
tess.pensize(3)

for a in xs:
    drawBar(tess, a)

wn.exitonclick()


编辑：

如果你想向上向右移动

t.penup()

t.forward(2)
t.right(90)
t.forward(3)

t.write(str(height))

t.forward(-3)
t.right(-90)
t.forward(-2)

t.pendown()

如果要向上移动，请设置画笔、向前移动、写入文本、向后移动、向下移动

t.penup()
t.forward(2)
t.write(str(height))
t.forward(-2)
t.pendown() 


最小工作码

import turtle

def drawBar(t, height):
    """ Get turtle t to draw one bar, of height. """
    t.begin_fill()               # start filling this shape
    t.left(90)
    t.forward(height)
    
    t.penup()
    t.forward(2)
    t.write(str(height))
    t.forward(-2)
    t.pendown()

    t.right(90)
    t.forward(40)
    t.right(90)
    t.forward(height)
    t.left(90)
    t.end_fill()              # stop filling this shape

xs = [48, 117, 200, 240, 160, 260, 220]  # here is the data
maxheight = max(xs)
numbars = len(xs)
border = 10

wn = turtle.Screen()             # Set up the window and its attributes
wn.setworldcoordinates(0-border, 0-border, 40*numbars+border, maxheight+border)
wn.bgcolor("lightgreen")

tess = turtle.Turtle()           # create tess and set some attributes
tess.color("blue")
tess.fillcolor("red")
tess.pensize(3)

for a in xs:
    drawBar(tess, a)

wn.exitonclick()


编辑：

如果你想向上向右移动

t.penup()

t.forward(2)
t.right(90)
t.forward(3)

t.write(str(height))

t.forward(-3)
t.right(-90)
t.forward(-2)

t.pendown()

您可以保存海龟的状态（位置和方向），在绘制标签之前向右移动一点，然后恢复状态

我的意思是：

def drawBar(t, height):
    """ Get turtle t to draw one bar, of height. """
    t.begin_fill()               # start filling this shape
    t.left(90)
    t.forward(height)

    posn = t.position()          # Save position.
    heading = t.heading()        # Save heading.
    t.right(90)                  # Point to the right.
    t.forward(1)                 # Move over a little.
    t.write(height)              # Display the label.
    t.goto(posn)                 # Restore position.
    t.setheading(heading)        # Restore heading.

    t.right(90)
    t.forward(40)
    t.right(90)
    t.forward(height)
    t.left(90)
    t.end_fill()                 # stop filling this shape

您可以通过保存海龟的状态（位置和方向），在绘制标签之前将其向右移动一点，然后恢复其状态来完成此操作

我的意思是：

def drawBar(t, height):
    """ Get turtle t to draw one bar, of height. """
    t.begin_fill()               # start filling this shape
    t.left(90)
    t.forward(height)

    posn = t.position()          # Save position.
    heading = t.heading()        # Save heading.
    t.right(90)                  # Point to the right.
    t.forward(1)                 # Move over a little.
    t.write(height)              # Display the label.
    t.goto(posn)                 # Restore position.
    t.setheading(heading)        # Restore heading.

    t.right(90)
    t.forward(40)
    t.right(90)
    t.forward(height)
    t.left(90)
    t.end_fill()                 # stop filling this shape

您是否尝试在
t.end\u fill（）之后使用
t.write（）
？您是否尝试在
t.end\u fill（）之后使用
t.write（）
？这很简单，谢谢！我不知道你不能写（str（height））而t.penup（）如果它不能
写
当
penup
时，那么你可以在
写
之前直接使用
pendown
，在
写
之后直接使用
penup
。这很简单，谢谢！我不知道你不能写（str（height））而t.penup（）如果它不能
write
当
penup
时，那么你可以在
write
之前直接使用
pendown
，在
write
之后直接使用
penup
。