简单的数学测验

Question

我的简单数学测验有错误，表明未定义B变量。 我尝试将其定义为stringvar但仍然有错误。我应该在哪里定义变量？我的总计是使它继续计算结果框中最后一个接口的正确方法。有人可以显示示例来解决它。

import Tkinter 
import tkMessageBox

#easybox1
EasyBox1 = Tkinter.Tk()
EasyBox1.geometry("250x200")
EasyBox1.title("Quesion 1")

Tkinter.Label (EasyBox1, text="answer:").pack()

answr1 = Tkinter.Entry (EasyBox1)
answr1.pack()

LabelName2 = Tkinter.Label (EasyBox1, text="State the number of edges in a cube")
LabelName2.grid(row=1,column=0)
LabelName2.pack()

def next1():
    total = 0
    if not answr1.get():
       tkMessageBox.showerror('no answer')
    elif answr1.get() == 8 :
       total = total + 1
       EasyBox1.withdraw()
       EasyBox2.deiconify()
    elif answr1.get() != 8:
       total = total
       EasyBox1.withdraw()
       EasyBox2.deiconify()
    return

EasyBox2 = Tkinter.Tk()
EasyBox2.geometry("250x200")
EasyBox2.title("Quesion 2")

Tkinter.Label (EasyBox2, text="answer:").pack()

answr2 = Tkinter.Entry (EasyBox2)
answr2.pack()

LabelName2 = Tkinter.Label (EasyBox2, text="What is the place value of the digit 4 in 76421?")
LabelName2.grid(row=1,column=0)
LabelName2.pack()

LabelName2 = Tkinter.Label (EasyBox2, text="A.Thousands B.Hundreds C.Ones D.Tens")
LabelName2.grid(row=1,column=0)
LabelName2.pack()

def mark():
    total = 0
    if not answr2.get():
        tkMessageBox.showerror('no answer')
    elif answr2.get() == B or b :
        total = total + 1
        EasyBox1.withdraw()
        ResultBox.deiconify()
    elif answr2.get() != B :
        total = total
        EasyBox1.withdraw()
        ResultBox.deiconify()
    return


EasyBox2.withdraw()

total = 0


ResultBox = Tkinter.Tk()
ResultBox.geometry("320x260")
ResultBox.title("Results")

LabelName5 = Tkinter.Label (ResultBox, text="Marks : "+`total`, font=("Impact",20))
LabelName5.grid(row=2,column=0)
ResultBox.withdraw()

Tkinter.Button (EasyBox1, text="Next", command=next1).pack()
Tkinter.Button (EasyBox2, text="result", command=mark).pack()

EasyBox1.mainloop()

Answer 1

如果您想将答案与字符串“ B”或“ b”进行比较，只需将其引号

Answer 2

只需在"b"和"B"两边加上引号：

def mark():
    total = 0
    if not answr2.get():
        tkMessageBox.showerror('no answer')
    elif answr2.get() in ["B", "b"]:
        total = total + 1
        EasyBox1.withdraw()
        ResultBox.deiconify()
    else:
        total = total
        EasyBox1.withdraw()
        ResultBox.deiconify()

另外，与or "b"的比较现在将无法进行，您可以将其更改为

if answr2.get() in ["B", "b"]:

要么

if answr2.get().upper() == "B":