Question

我正在从youtube视频中学习tkinter，这是代码：

import tkinter as tk

def click():
    entered_text = textentry.get()  
    output.delete(0.0, tk.END) 
    try:
        definition = my_compdictionary[entered_text] 
    except:
        definition = "sorry there is no word like that please try again"
    output.insert(tk.END, definition)  


# main
window = tk.Tk()
window.title("My Computer Science Glossary")
window.configure(background="black")

# adding photo
photo1 = tk.PhotoImage(file="plusimg.png")
a = tk.Label(window, image=photo1, bg="black")  
a.grid(row=0, column=0, sticky=tk.W)  

# create label/text
lab = tk.Label(window, text="Enter the word you would like a definition for:", bg="black",  
               fg="white", font="none 12 bold").grid(row=1, column=0, sticky=tk.W)          

# text entry box
textentry = tk.Entry(window, width=20, bg="white")
textentry.grid(row=2, column=0, sticky=tk.W)

# button
tk.Button(window, text="SUBMIT", width=6).grid(row=3, column=0, command=click(), sticky=tk.W)  

# another label
tk.Label(window, text="\nDefinition:", bg="black", fg="white", font="none 12 bold").grid(row=4, column=0, sticky=tk.W)

# output text box
output = tk.Text(window, width=75, height=6, wrap=tk.WORD, background="white")  
output.grid(row=5, column=0, columnspan=2, sticky=tk.W)

# the dictionary
my_compdictionary = {
    'algorithm': 'Step by step instructions to complete a task', 'bug': 'piece of code that causes a program to fail'
    }

window.mainloop()

该问题似乎是在click()函数中发生的。我得到的错误是“输出”未定义
错误消息也会打印此行，但没有说明出什么毛病：

tk.Button(window, text="SUBMIT", width=6).grid(row=3, column=0, command=click(), sticky=tk.W)

该程序假定允许我输入一个单词，并且将在my_compdictionary中设置该单词时为其提供定义

我正在学习的人： https://www.youtube.com/watch?v=_lSNIrR1nZU

在tkinter python上添加可点击的提交按钮时出错

0 个答案: