Question

我试图做一个菜单或类似的东西

以下是代码：

from turtle import TurtleScreen, RawTurtle, TK

root = TK.Tk()
root.title("ArMoon")
canvas = TK.Canvas(root, width=1000, height=700)
canvas.pack()
win = TurtleScreen(canvas)
dali = RawTurtle(win)

def Entrada():
    return win.textinput("Figura"," 1. Operando\n 2. Sumar operandos\
    \n 3. Reiniciar\n 4. Salir\n ")



while True:
    x = Entrada()
    if x == "4" or x == "":
        break
    oper = x.split()
    print(oper)
    x = oper[0]
    print(x)
    #if x <= 0:



win.mainloop()

问题在于，当我运行程序时，在文本输入的小窗口中，它们向我显示两个按钮，我不介意，我喜欢它们但有没有办法修改它们做什么？

＆＃34; Ok＆＃34;按钮似乎工作正常，但当我按下＆＃34;取消＆＃34;按钮我收到错误

> Traceback (most recent call last):
> 
>   File "C:\Users\Lobo\Desktop\TORTUGA\Borrador v2.py", line 21, in
> <module>
> 
>     oper = x.split()
> 
> AttributeError: 'NoneType' object has no attribute 'split'

我想修改它，所以当我按下它时，只需运行＆＃39; break＆＃39;结束。

Answer 1

您应该修改您的代码：

x = Entrada()
if x is None or x == "4":
   break

因为取消按钮返回None（类似于C中的空指针）而不是空字符串

Answer 2

您可以将 textinput 的值存储到变量中

示例：

val = turtle.textinput(title, prompt)
if not val:
   print("blank selected")
elif val == "None"
   print("Cancel Pressed")
else:
   print("do something")

如何修改.textinput中的按钮？

2 个答案: