问题描述
当前正在做作业。我的代码返回了几行代码中的错误，并暗示我正在使用Tkinter，而我还没有。寻找任何有时间关注我的代码的人。
为了能够看到错误，我按下“ d”打开输入窗口，然后键入“ square”（全部小写）。
当您输入程序名称或具有的边数时，我正在尝试使程序绘制形状。
我的错误返回为：
<header>
<div class="logo-text">Cloudnotes</div>
<button class="create-account">Create an Account</button>
<a class="sign-in">Sign in</a>
</header>
<div id="block1">
</div>
<div id="block2">
</div>
</body>这是我的代码：
Exception in Tkinter callback
Traceback (most recent call last):
File "C:\Program Files\python36\lib\tkinter\__init__.py",line 1699,in __call__
return self.func(*args)
File "C:\Program Files\python36\lib\turtle.py",line 701,in eventfun
fun()
File "E:\Master 200820 no comments Stack.py",line 85,in startUp
mainGame()
File "E:\Master 200820 no comments Stack.py",line 125,in mainGame
regShapeDraw()
File "E:\Master 200820 no comments Stack.py",line 73,in regShapeDraw
length = ((1 / sides) * 500)
TypeError: unsupported operand type(s) for /: 'int' and 'list'
解决方法
我的代码在几行代码中返回错误，并且 提示我正在使用Tkinter，而我没有。
如果您使用的是 turtle ，则您使用的是 tkinter ，因为turtle位于tkinter之上。至于错误：
File "E:\Master 200820 no comments Stack.py",line 73,in regShapeDraw
length = ((1 / sides) * 500)
TypeError: unsupported operand type(s) for /: 'int' and 'list'
在代码中的任何地方，都将变量sides视为int：
angle = (360 / sides)
for i in range(sides - 1):
sides = 3
sides = 4
...
sides = 11
sides = 12
sides = int(userInput)
除了它的全局值：
sides = []
这导致下一个问题。函数regShapeDraw()全局使用sides：
def regShapeDraw():
length = ((1 / sides) * 500)
angle = (360 / sides)
pen.forward(length / 2)
for i in range(sides - 1):
pen.left(angle)
pen.forward(length)
pen.left(angle)
pen.forward(length / 2)
但是谁在全局设置sides？全局仅设置一次：
sides = []
sides的所有其他设置，例如。 mainGame()中的 local 。要使此工作有效，您需要在sides中声明mainGame()全局：
def mainGame():
global sides
userInput = ...
...
以及从函数内部设置全局sides的其他任何位置。总结：
-
将全局
sides设置为合理的默认int值（例如3） -
在
sides中声明mainGame()全局 -
在（在线）Python教科书中了解
global关键字
如果/当您了解dict时，应该可以使此代码更易于管理。像这样：
from turtle import Screen,Turtle
INSTRUCTION_FONT = ('Arial',12)
SHAPE_FONT = ('Arial',30,'bold')
TITLE_FONT = ('Avenir',18,'bold','underline')
VERSION_FONT = ('Arial',8)
def instructions():
instPen = Turtle()
instPen.hideturtle()
instPen.penup()
instPen.goto(0,205)
instPen.write("For this game,you can:",align='center',font=INSTRUCTION_FONT)
instPen.goto(-120,170)
instPen.write("• Type in the name of a shape",font=INSTRUCTION_FONT)
instPen.goto(-100,145)
instPen.write("- Names must be in lowercase",120)
instPen.write("- Shape must have 12 or less sides",95)
instPen.write("• Type in a number of sides",70)
instPen.write("- Number must be less than 25",35)
instPen.write(": The program will then draw the shape",10)
instPen.write(": And tell you what shape it is",font=INSTRUCTION_FONT)
instPen.goto(-240,-340)
instPen.write("Shape Shop v1.0",font=VERSION_FONT)
def regShapeDraw():
length = 1 / sides * 500
pen.forward(length / 2)
angle = 360 / sides
for _ in range(sides - 1):
pen.left(angle)
pen.forward(length)
pen.left(angle)
pen.forward(length / 2)
SHAPE_NAME_TO_SIDES = {
'triangle': 3,'square': 4,'quadrilateral': 4,'pentagon': 5,'hexagon': 6,'septagon': 7,'heptagon': 7,'octagon': 8,'nonagon': 9,'decagon': 10,'hendecagon': 11,'dodecagon': 12,}
SHAPE_SIDES_TO_NAME = {
'3': 'triangle','4': 'equare','5': 'pentagon','6': 'hexagon','7': 'heptagon','8': 'octagon','9': 'nonagon','10': 'decagon','11': 'hendecagon','12': 'dodecagon','13': 'triskaidecagon','14': 'tetrakaidecagon','15': 'pentadecagon','16': 'hexakaidecagon','17': 'heptadecagon','18': 'octakaidecagon','19': 'enneadecagon','20': 'icosagon','21': 'icosikaihenagon','22': 'icosikaidigon','23': 'icosikaitrigon','24': 'icositetragon','25': 'icosikaipentagon',}
SHAPE_NAME_ALIASES = {
'quadrilateral': 'square','septagon': 'heptagon',}
def mainGame():
global sides
userInput = screen.textinput("What shape do you want? ","Enter a shape name or a number of sides:").lower()
pen.clear()
typeName.clear()
if userInput.isalpha():
if userInput in SHAPE_NAME_TO_SIDES:
pen.penup()
pen.goto(0,-300)
pen.pendown()
sides = SHAPE_NAME_TO_SIDES[userInput.lower()]
regShapeDraw()
else:
pen.penup()
pen.goto(0,-250)
pen.write("We don't seem to have that shape in our database. You could try:",font=INSTRUCTION_FONT)
pen.sety(-275)
pen.write("» Making all the letters lowercase",font=INSTRUCTION_FONT)
pen.sety(-300)
pen.write("» Checking your spelling",font=INSTRUCTION_FONT)
pen.sety(-325)
pen.write("» Making sure the shape you want has 12 or less sides",font=INSTRUCTION_FONT)
elif userInput.isnumeric():
sides = int(userInput)
if sides <= 25:
pen.penup()
pen.goto(0,-300)
pen.pendown()
regShapeDraw()
else:
pen.penup()
pen.goto(0,font=INSTRUCTION_FONT)
pen.sety(-275)
pen.write("» Making the number less than 25",font=INSTRUCTION_FONT)
else:
pen.penup()
pen.goto(0,-250)
pen.write("We don't seem to have that shape in our database. You could try:",font=INSTRUCTION_FONT)
pen.sety(-275)
pen.write("» Making your input all letters or all numbers",font=INSTRUCTION_FONT)
if userInput in SHAPE_SIDES_TO_NAME:
shapeName = SHAPE_SIDES_TO_NAME[userInput]
elif userInput in SHAPE_NAME_ALIASES:
shapeName = SHAPE_NAME_ALIASES[userInput]
elif userInput in SHAPE_NAME_TO_SIDES:
shapeName = userInput
else:
shapeName = r"¯\(°_o)/¯"
typeName.write(shapeName.title(),font=SHAPE_FONT)
screen.listen() # must be reasserted after screen.textinput()
screen = Screen()
screen.title("Shape Shop")
screen.setup(width=500,height=700)
screen.bgcolor('lightsteelblue')
turtle = Turtle()
turtle.hideturtle()
turtle.penup()
turtle.sety(250)
turtle.write("Welcome to the Shape Shop",font=TITLE_FONT)
instructions()
pen = Turtle()
pen.hideturtle()
pen.pensize(2)
typeName = Turtle()
typeName.hideturtle()
typeName.penup()
typeName.sety(-120)
sides = 3
screen.onkeypress(mainGame,'d')
screen.listen()
screen.mainloop()