Tkinter的：不工作

Question

字符串变量我已经对科学的程序，它要求你N元素的象征，你必须在元素类型，但问题是，它不能告诉我，你得到的答案错了，它只是不断说正确！

这里是我的代码，提前

# Import Modules 
from tkinter import * 
import random, time 

# Window Setup 
root = Tk() 
root.title('Element Finder') 
root.state('zoomed') 

# Elements 

""" 

a = H, Hydrogen 

b = He, Helium 

c = O, Oxygen 

d = C, Carbon 

e = N, Nitrogen 

f = Ne, Neon 

g = U, Uranium 

h = Na, Sodium 

i = Ar, Argon 

j = K, Potassium 

k = Mg, Magnesium 

l = Cl, Chlorine 

m = B, Boron 

n = Au, Gold 

o = Pd, Palladium 

p = Kr, Krypton 

q = Ca, Calcium 

r = Pm, Promethium 

s = Ag, Silver 

t = Rb, Rubidium 

u = Y, Yurium 

v = Ir, Iridium 

w = Pt, Platnium 

x = Ti, Titanium 

y = Hg, Mercury 

z = Er, Erbium 

""" 

# Variables 
element = StringVar() 
guess = StringVar() 
answer = StringVar() 

def question(): 
    guess.set('') 
    element.set('') 
    r = random.randint(1, 26) 
    if r == 1: 
     element.set('H') 
    elif r == 2: 
     element.set('He') 
    elif r == 3: 
     element.set('O') 
    elif r == 4: 
     element.set('C') 
    elif r == 5: 
     element.set('Ne') 
    elif r == 6: 
     element.set('U') 
    elif r == 7: 
     element.set('Na') 
    elif r == 8: 
     element.set('Ar') 
    elif r == 9: 
     element.set('K') 
    elif r == 10: 
     element.set('Mg') 
    elif r == 11: 
     element.set('Cl') 
    elif r == 12: 
     element.set('B') 
    elif r == 13: 
     element.set('Au') 
    elif r == 14: 
     element.set('Pd') 
    elif r == 15: 
     element.set('Kr') 
    elif r == 16: 
     element.set('Ca') 
    elif r == 17: 
     element.set('Pm') 
    elif r == 18: 
     element.set('Ag') 
    elif r == 19: 
     element.set('Rb') 
    elif r == 20: 
     element.set('Y') 
    elif r == 21: 
     element.set('Ir') 
    elif r == 22: 
     element.set('Pt') 
    elif r == 23: 
     element.set('Ti') 
    elif r == 24: 
     element.set('N') 
    elif r == 25: 
     element.set('Hg') 
    elif r == 26: 
     element.set('Er') 

def check(): 
    e = element.get() 
    g = guess.get() 
    if e == 'H' and g == 'Hydrogen' or 'hydrogen' or 'HYDROGEN': 
     answer.set('Correct!') 
    if e == 'He' and g == 'Helium' or 'helium' or 'HELIUM': 
     answer.set('Correct') 
    if e == 'O' and g == 'Oxygen' or 'oxygen' or 'OXYGEN': 
     answer.set('Correct!') 
    if e == 'C' and g == 'Carbon' or 'carbon' or 'CARBON': 
     answer.set('Correct!') 
    if e == 'Ne' and 'Neon' or 'neon' or 'NEON': 
     answer.set('Correct!') 
    if e == 'U' and g == 'Uranium' or 'uranium' or 'URANIUM': 
     answer.set('Correct!') 
    if e == 'Na' and g == 'Sodium' or 'sodium' or 'SODIUM': 
     answer.set('Correct!') 
    if e == 'Ar' and g == 'Argon, argon' 'ARGON': 
     answer.set('Correct!') 
    if e == 'K' and g == 'Potassium' or 'potassium' or 'POTASSIUM': 
     answer.set('Correct!') 
    if e == 'Mg' and g == 'Magnesium' or 'magnesium' or 'MAGNESIUM': 
     answer.set('Correct!') 
    if e == 'Cl' and g == 'Chlorine' or 'chlorine' or 'CHLORINE': 
     answer.set('Correct!') 
    if e == 'B' and g == 'Boron' or 'boron' or 'BORON': 
     answer.set('Correct!') 
    if e == 'Au' and g == 'Gold' or 'gold' or 'GOLD': 
     answer.set('Correct!') 
    if e == 'Pd' and g == 'Palladium' or 'palladium' or 'PALLADIUM': 
     answer.set('Correct!') 
    if e == 'Kr' and g == 'Krypton' or 'krypton' or 'KRYPTON': 
     answer.set('Correct!') 
    if e == 'Ca' and g == 'Calcium' or 'calcium' or 'CALCIUM': 
     answer.set('Correct!') 
    if e == 'Pm' and g == 'Promethium' or 'promethium' or 'PROMETHIUM': 
     answer.set('Correct!') 
    if e == 'Ag' and g == 'Silver' or 'silver' or 'SILVER': 
     answer.set('Correct!') 
    if e == 'Rb' and g == 'Rubidium' or 'rubidium' or 'RUBIDIUM': 
     answer.set('Correct!') 
    if e == 'Y' and g == 'Yurium' or 'yurium' or 'YURIUM': 
     answer.set('Correct!') 
    if e == 'Ir' and g == 'Iridium' or 'iridium' or 'IRIDIUM': 
     answer.set('Correct!') 
    if e == 'Pt' and g == 'Platnium' or 'platnium' or 'PLATNIUM': 
     answer.set('Correct!') 
    if e == 'Ti' and g == 'Titanium' or 'titanium' or 'TITANIUM': 
     answer.set('Correct!') 
    if e == 'N' and g == 'Nitrogen' or 'nitrogen' or 'NITROGEN': 
     answer.set(g + ' is correct') 
    if e == 'Hg' and g == 'Mercury' or 'mercury' or ' MERCURY': 
     answer.set('Correct!') 
    if e == 'Er' and g == 'Erbium' or 'erbium' or 'ERBIUM': 
     answer.set('Correct!') 
    else: 
     answer.set('Incorrect.') 
    question() 

# Question 
Label(root, text='What element has the symbol:', fg='black', font='20').pack(side=TOP) 
e = Label(root, textvariable=element, fg='blue', font='20').pack(side=TOP) 
a = Entry(root, textvariable=guess, font=20).pack(side=TOP) 
Button(root, text='Check', fg='green', command=check).pack(side=TOP) 
c = Label(root, textvariable=answer, font=20, fg='blue').pack(side=TOP) 
question() 

谢谢！

Answer 1

g == 'Hydrogen' or 'hydrogen' or 'HYDROGEN' 

所有这些声明都是错误的。你必须写：

g == "Hydrogen" or g == "hydrogen" or g == "HYDROGEN" 

但它更容易写：与其'g == Hydrogen' or 'hydrogen' or 'HYDROGEN'

g.lower() == "hydrogen" #added '()' per Blender's comment 

Answer 2

你可以做g.lower() == 'hydrogen'

这里的问题是：

if g == 'Hydrogen' or 'hydrogen' or 'HYDROGEN' 

评估为

个

if (g == 'Hydrogen') or ('hydrogen') or 'HYDROGEN' 

表达的后部分总是为True因此，错误。

您可以通过创建一个字典简化代码的大量工作：

d = {1: 'H', 2: 'He', ... } 

与element.set(d.get(r))

Answer 3

取代if的大块顺便说一句，你可以得到if语句去掉所有的像这样：

import random as r 

atomic_symbols = ["H", "He", "O"] 
rnum = r.randint(0, len(atomic_symbols) - 1) 
element.set(atomic_symbols[rnum]) 

和：

answers = { 
    "H": "hydrogen", 
    "He": "helium", 
    "O": "oxygen" 
} 

if guess.get().lower() == answers[element.get()]: 
    answer.set("Correct") 

的另一面是，你必须创建一个大名单和一个大字典，所有的值。实际上，为了节省一些输入，只需创建字典，然后使用keys（）来获取所有原子符号的列表。