我想创建一个面积计算器,因为我有一些空闲时间,所以我尝试先将其运行到终端中,并且可以正常工作,但是当我决定添加一个精巧的GUI时,出现了一个错误我的代码是这个
from tkinter import * screen = Tk() screen.title("Area of Circle Calculator") screen.geometry("500x500") def submit(): global done pi = 3.14159265359 an = int(pi * radius*radius) laod = Label(screen, text = "Hello" % (an)) load.grid() ask = Label(screen, text = "What is the radius of the circle?") ask.pack() radius = Entry(screen) radius.pack() done = Button(screen, text="submit", command = submit) done.pack() screen.mainloop()
这是我得到的错误
C:\Users\Timothy\Desktop>python aoc.py Exception in Tkinter callback Traceback (most recent call last): File "C:\Users\Timothy\AppData\Local\Programs\Python\Python37-32\lib\tkinter\_ _init__.py", line 1705, in __call__ return self.func(*args) File "aoc.py", line 8, in submit an = int(pi * radius*radius) TypeError: unsupported operand type(s) for *: 'float' and 'Entry' C:\Users\Timothy\Desktop>
我尝试将int()添加到条目中,但确实有用
我想创建一个面积计算器,因为我有一些空闲时间,所以我尝试先在终端上运行它,并且它可以正常工作,但是当我决定很好地添加Lite GUI时,出现了错误,我的代码...
您需要调用radius.get()
来获取Entry
小部件的当前值。这里是一些documentation。