Question

我试图通过一个按钮在Python中重新加载Tkinter窗口，但我很难搞清楚它。你看，它使用$("#bb").change(function() { console.log("change in bb"); $("#candidateTextArea").prop("disabled",false); } );并从列表中随机生成单词，当你点击按钮时，我想把标签设置为不同的单词，几乎就像滚动骰子但是用单词。

import random

感谢您的帮助：）

Answer 1

Canvas有方法itemconfig(item_id, option=new_value)来更改项目选项。即

canvas.itemconfig(creature_text, text=random.choice(creature))

简单，有效的例子

try:
    from Tkinter import * # Python 2
except:
    from tkinter import * # Python 3

import random

# --- functions ---

def change_creature():
    # change text in item
    canvas.itemconfig(creature_text, text=random.choice(creature))

# --- data ---

creature = [
    'is an Animal', 'is a Human', 'is an Artificial Intelligence', 
    'is an Alien', 'is a Mage','is a Reptillian','is a Shapeshifter',
    'is Undead', 'is a Scorpion Hedgehog', 'is an Angel', 'is a Demon'
]

# --- main ---

root = Tk()

canvas = Canvas(root, height=100, width=300)
canvas.grid()

# create empty item
creature_text = canvas.create_text(10, 10, anchor='nw')

# generate first text in item
change_creature()

# use button to call the same function    
button = Button(root, text='Generate Creature', command=change_creature)
button.grid()

root.mainloop()

编辑：更通用 - 使用功能

中的参数

change_text(creature_text_1, creature)

command=lambda:change_text(creature_text_1, creature))

或直接使用它（没有自己的功能）

canvas.itemconfig(creature_text_1, text=random.choice(creature))

command=lambda:canvas.itemconfig(creature_text_1, text=random.choice(creature))

代码：

try:
    from Tkinter import * # Python 2
except:    
    from tkinter import * # Python 3

import random

# --- functions ---

def change_text(item_id, all_text):
    # change text in item
    canvas.itemconfig(item_id, text=random.choice(all_text))

# --- data ---

creature = [
    'is an Animal', 'is a Human', 'is an Artificial Intelligence', 
    'is an Alien', 'is a Mage','is a Reptillian','is a Shapeshifter',
    'is Undead', 'is a Scorpion Hedgehog', 'is an Angel', 'is a Demon'
]

# --- main ---

root = Tk()

canvas = Canvas(root, height=100, width=300)
canvas.grid()

# create empty items
creature_text_1 = canvas.create_text(10, 10, anchor='nw')
creature_text_2 = canvas.create_text(10, 30, anchor='nw')

# generate first text in item
change_text(creature_text_1, creature)
# or directly 
canvas.itemconfig(creature_text_2, text=random.choice(creature))

# use buttons to call the same function    
button = Button(root, text='Generate Creature 1', command=lambda:change_text(creature_text_1, creature))
button.grid()

# or directly 
button = Button(root, text='Generate Creature 2', command=lambda:canvas.itemconfig(creature_text_2, text=random.choice(creature)))
button.grid()

root.mainloop()

如何刷新＆＃34; python中的Tkinter窗口？

1 个答案: