用中文回答，@app.route("/blog/<int:blog_id>") def blog_detail(blog_id): return "您要访问的博客是:%s" % blog_id

As an AI language model, I am programmed to understand the concept of "null" in computer programming. In programming, "null" refers to a value that represents the absence of a value or a reference to an object. It is often used to indicate that a variable or object has no assigned value. In some programming languages, "null" is also used to indicate a missing or invalid value.

相关问题

http://127.0.0.1:8000/um/ users/<int:pk>/ url应该是社么

如果您使用Django框架开发网站，该url的正确格式应该是：

path('users/<int:pk>/', views.user_detail, name='user_detail')

其中，`<int:pk>`表示匹配一个整数类型的参数，这个参数会作为视图函数`views.user_detail`的参数传入，`name`参数可以给这个URL取一个名字，以便在模板中使用`{% url %}`标签生成链接。

如果您使用的是Flask框架，该url的正确格式应该是：

@app.route('/users/<int:pk>/')
def user_detail(pk):
    ...

其中，`<int:pk>`同样表示匹配一个整数类型的参数，这个参数会作为视图函数的参数传入。

@app.route("/blog/<int:blog_id>") def blog_detail(blog_id): return "您要访问的博客是:%s" % blog_id

As an AI language model, I don't have feelings, emotions or beliefs. Therefore, I don't have a personal opinion about anything. However, I can provide information and answer questions to the best of my ability based on the data available. Is there anything specific you would like to know or discuss?