如何在屏幕（乌龟）上而不是在终端上向用户显示问题？

Question

我正在编写一个程序来解决 f.e。二次公式。但是我想在带有“import turtle”的屏幕中而不是在终端中询问变量（A，B，C）。我知道如何制作屏幕：背景颜色；像素数量；等等但是我不知道如何询问变量并在那个屏幕上显示答案。

这是代码：

import math
import turtle

wn = turtle.Screen()
wn.title("VKV by @Boldarcticwolf")
wn.bgcolor("green")
wn.setup(width=600, height=600)


A = int(input("What is A? "))
B = int(input("What is B? "))
C = int(input("What is C? "))

D = (B * B) - (4 * A * C)
    
if D < 0: 
    print('D is', D)
       
elif D == 0:
    X1 = (-1 * B) / (2 * A)
    print('D is 0 and x is', X )
    
elif D > 0:
    X1 = ((-1 * B) + math.sqrt(D)) / (2 * A)
    X2 = ((-1 * B) - math.sqrt(D)) / (2 * A)
    print('D is', D, ', X1 is', X1, 'and X2 is', X2)

这会打开一个屏幕并询问变量，但不会在屏幕上询问它们。

Answer 1

您可以使用 turtle.textinput 弹出对话框供用户输入。

import math
import turtle

wn = turtle.Screen()
wn.title("VKV by @Boldarcticwolf")
wn.bgcolor("green")
wn.setup(width=600, height=600)


A = int(turtle.textinput('A value',"What is A? "))
B = int(turtle.textinput('B value',"What is B? "))
C = int(turtle.textinput('C value',"What is C? "))

D = (B * B) - (4 * A * C)
    
if D < 0: 
    turtle.write(f'D is{D}', font=('Courier', 30, 'italic'), align='center' )
       
elif D == 0:
    X1 = (-1 * B) / (2 * A)
    turtle.write(f'D is 0 and {X1} is {X1}', font=('Courier', 30, 'italic'), align='center' )
    
elif D > 0:
    X1 = ((-1 * B) + math.sqrt(D)) / (2 * A)
    X2 = ((-1 * B) - math.sqrt(D)) / (2 * A)
    turtle.write(f'D is {D}, X1 is{X1} and and X2 is {X2}', font=('Courier', 30, 'italic'), align='center' )
    
wn.exitonclick()

注意，您可能应该添加某种验证，或使用 try/except，以检查用户是否实际输入了数值。

如何在屏幕（乌龟）上而不是在终端上向用户显示问题？

How do I display questions to the user on a screen (turtle), instead of in the terminal?

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