好的，这是我遇到问题的代码。
from guizero import App, Text, TextBox, PushButton, Slider, Picture
def change_number(slider_value):
global
int_number
int_number = slider_value
str_number=str(int_number)
app = App(title="Hello World")
int_number=1
str_number=str(int_number)
picture = Picture(app, image= str_number+".gif")
update_image_number = Slider(app, command=change_number, start=1, end=3)
print_number = Text(app, text=str_number, size=15, font="Comic Sans", color="darkblue" )
app.display()
因为我已经说过我正在尝试使用Slider函数来生成字符串＆＃34; 1＆＃34;，＆＃34; 2＆＃34;和＆＃34; 3＆＃34;，然后将它们连接到＆＃34; .gif＆＃34;为了根据名称更改要显示的图像。但它不起作用，但现在我没有错误。有任何想法吗？感谢