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This article will explain in detail how to use Python to write an intelligent robot to chat, the content of the article is of high quality, so Xiaobian shares it with you as a reference, I hope you have a certain understanding of relevant knowledge after reading this article.

Artificial intelligence is already a trend, smart hotels, smart Internet cafes, driverless cars, etc. have been realized, and it will not be long before we will popularize our life circle; similarly, the advent of the intelligent era means that many people will face unemployment. We must follow the development of the times, so that we will not be abandoned by the times, eliminated!

And as an artificial intelligence *** language-python

It will be the goal of our study; someone once said:

In modern society, people who cannot Python will be classified as the new "illiterate"! Python is also the most suitable for people who do not have any programming language foundation to learn! So I started my Python learning journey!

As long as you find the right steps, find the right method, and study hard! Trust me, you'll learn soon enough!

Here, Xiaobian prepared for everyone a very suitable zero-based entry learning materials for those who want to learn, of course, there are today's source code.

Well, what Xiaobian brings to you today is to write an intelligent robot:

I. Parse the generator object

Let's start with a simple example. Let's create a generator function and generate a generator object.

Artificial intelligence era, I wrote a python intelligent robot to chat, very good!

Let's say G is a generator object and let's dissect what's in it.

print dir(G)

Notice that there are four very special functions close(),next(),send(),throw(),next() functions that I've talked about in the last two articles, so I won't talk about them again. Today we focus on send(),throw(),close() functions

II. What is a corollary?

Python coroutines are somewhat similar to threads. You can think of coroutines as user-level lightweight threads or microthreads. You can run multiple functions, making them seem to run at the same time, but they have some advantages over threads, such as not taking up a lot of memory, low overhead, and no need to consider thread safety. (What is a thread?)

Send () function

send() is used to pass parameters to interact with the generator. When the program runs to receive=yield, it will be suspended, waiting for the generator to call the send method. At this time, the external call send function will send data variables, and the data variables will be passed to received.

Sample Code:

a).echo function inside a closed loop, there is a key line of code,receive=yield This is the send function sent from the outside of the entry.

b). The outer function starts by generating a generator object, which is Echo=echo().

c). And then the key step is next(Echo), make sure you call the next function once to push the generator to the yield expression.

d). Next, we can combine the yield operation with the send operation to obtain the data input from the outside world and then use a set of processes to process it.

throw () function

throw basically sends an exception to the generator, which can end system-defined exceptions (including custom exceptions, of course)

Sample Code:

a). Create Generator Object G

b), execute next(G) and print the result, we will get *** yield cached result 'First' and stay before yield 'Second'

c). Throw an exception of ValueError(note ValueError is a class not a string), when the generator receives the exception, skip the yield 'Second' and enter the except part, print 'Catch the TypeError'

d). Execute next(G) and print the result, we'll go back to the while header and consume *** yield 'Frist', execute yield 'Second'

close () function

close is used to stop the generator, and if next is called after stopping, a StopIteration error is raised

Sample Code:

When the generator object Echo calls close(), then calls send ('123 ') to throw an exception StopIteration, which we catch.

III. Practical Application-Mini Chatbot

Having said so much, is everyone a little dizzy?

The generator itself is one of the most complex concepts in Python, and some students ask if there is another (yes, it is a decorator).

Let's write a small chatbot with a coroutine ~~

1). Create a chatbot generator function, which can be considered a thread function in the background

2). The foreground constantly obtains user input, and then sends it to the background processing using coroutines.

See how it works.

About how to use Python to write an intelligent robot to chat to share here, I hope the above content can be of some help to everyone, you can learn more knowledge. If you think the article is good, you can share it so that more people can see it.

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