Python的bit运算

Python的bit运算

文章目录


在Python中，可以使用位运算符来对二进制位进行操作。Python中的位运算符包括：

  1. 按位与（&）：将两个二进制数的每一位进行按位与运算。
  2. 按位或（|）：将两个二进制数的每一位进行按位或运算。
  3. 按位异或（^）：将两个二进制数的每一位进行按位异或运算。
  4. 按位取反（~）：将一个二进制数的每一位进行按位取反运算。
  5. 左移（<<）：将一个二进制数向左移动指定的位数。
  6. 右移（>>）：将一个二进制数向右移动指定的位数。

下面是一些示例：

# 按位与（&）  
a = 0b1010  
b = 0b1100  
c = a & b  
print(c)  # 输出 0b1000  
  
# 按位或（|）  
a = 0b1010  
b = 0b1100  
c = a | b  
print(c)  # 输出 0b1110  
  
# 按位异或（^）  
a = 0b1010  
b = 0b1100  
c = a ^ b  
print(c)  # 输出 0b0110  
  
# 按位取反（~）  
a = 0b1010  
b = ~a  
print(b)  # 输出 -0b1111 (Python中二进制数默认是补码形式)  
  
# 左移（<<）  
a = 0b1010  
b = a << 2  
print(b)  # 输出 0b101000  
  
# 右移（>>）  
a = 0b1010  
b = a >> 2  
print(b)  # 输出 0b10 (Python中二进制数默认是补码形式)

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《AUTOSAR谱系分解(ETAS工具链)》之总目录

id="article_content" class="article_content clearfix"> id="content_views" class="htmledit_views">

以下是在SpringBoot中接入ai deepseek的过程。我这里的环境是jdk1.8，官网暂时没有java的示例。

1. 创建 API key deepseek API keys 

新用户会有500万的免费token额度

2. 封装询问deepseek的工具方法

添加key值和询问路径。API_KEY为你创建的key值。这个在配置文件或者是写在常量文件都可以，我这是写在配置文件里了

接下来就是代码实例了

  1.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="1">
class="hljs-ln-code"> class="hljs-ln-line">import com.fasterxml.jackson.databind.JsonNode;
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="2">
    • class="hljs-ln-code"> class="hljs-ln-line">import com.fasterxml.jackson.databind.ObjectMapper;
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="3"> class="hljs-ln-code"> class="hljs-ln-line">import com.zhiwonders.paperserver.service.IAuthService;
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="4"> class="hljs-ln-code"> class="hljs-ln-line">import lombok.extern.slf4j.Slf4j;
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="5"> class="hljs-ln-code"> class="hljs-ln-line">import org.apache.http.client.methods.CloseableHttpResponse;
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="6"> class="hljs-ln-code"> class="hljs-ln-line">import org.apache.http.client.methods.HttpPost;
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="7"> class="hljs-ln-code"> class="hljs-ln-line">import org.apache.http.entity.StringEntity;
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="8"> class="hljs-ln-code"> class="hljs-ln-line">import org.apache.http.impl.client.CloseableHttpClient;
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="9"> class="hljs-ln-code"> class="hljs-ln-line">import org.apache.http.impl.client.HttpClients;
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="10"> class="hljs-ln-code"> class="hljs-ln-line">import org.springframework.beans.factory.annotation.Autowired;
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="11"> class="hljs-ln-code"> class="hljs-ln-line">import org.springframework.beans.factory.annotation.Value;
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="12"> class="hljs-ln-code"> class="hljs-ln-line">import org.springframework.http.MediaType;
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="13"> class="hljs-ln-code"> class="hljs-ln-line">import org.springframework.web.bind.annotation.*;
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="14"> class="hljs-ln-code"> class="hljs-ln-line">import org.springframework.web.servlet.mvc.method.annotation.SseEmitter;
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="15"> class="hljs-ln-code"> class="hljs-ln-line">import java.io.BufferedReader;
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="16"> class="hljs-ln-code"> class="hljs-ln-line">import java.io.InputStreamReader;
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="17"> class="hljs-ln-code"> class="hljs-ln-line">import java.nio.charset.StandardCharsets;
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="18"> class="hljs-ln-code"> class="hljs-ln-line">import java.util.Collections;
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="19"> class="hljs-ln-code"> class="hljs-ln-line">import java.util.HashMap;
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="20"> class="hljs-ln-code"> class="hljs-ln-line">import java.util.Map;
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="21"> class="hljs-ln-code"> class="hljs-ln-line">import java.util.concurrent.ExecutorService;
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="22"> class="hljs-ln-code"> class="hljs-ln-line">import java.util.concurrent.Executors;
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="23"> class="hljs-ln-code"> class="hljs-ln-line">
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="24"> class="hljs-ln-code"> class="hljs-ln-line">
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="25"> class="hljs-ln-code"> class="hljs-ln-line">@RestController
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="26"> class="hljs-ln-code"> class="hljs-ln-line">@RequestMapping("/api/v1")
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="27"> class="hljs-ln-code"> class="hljs-ln-line">@Slf4j
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="28"> class="hljs-ln-code"> class="hljs-ln-line">public class OpenAIController {
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="29"> class="hljs-ln-code"> class="hljs-ln-line">
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="30"> class="hljs-ln-code"> class="hljs-ln-line"> @Value("${ai.config.deepseek.apiKey}")
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="31"> class="hljs-ln-code"> class="hljs-ln-line"> private String API_KEY;
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="32"> class="hljs-ln-code"> class="hljs-ln-line">
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="33"> class="hljs-ln-code"> class="hljs-ln-line"> @Value("${ai.config.deepseek.baseUrl}")
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="34"> class="hljs-ln-code"> class="hljs-ln-line"> private String API_URL;
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="35"> class="hljs-ln-code"> class="hljs-ln-line">
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="36"> class="hljs-ln-code"> class="hljs-ln-line"> @Autowired
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="37"> class="hljs-ln-code"> class="hljs-ln-line"> private IAuthService authService;
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="38"> class="hljs-ln-code"> class="hljs-ln-line">
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="39"> class="hljs-ln-code"> class="hljs-ln-line"> private final ExecutorService executorService = Executors.newCachedThreadPool();
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="40"> class="hljs-ln-code"> class="hljs-ln-line"> private final ObjectMapper objectMapper = new ObjectMapper();
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="41"> class="hljs-ln-code"> class="hljs-ln-line">
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="42"> class="hljs-ln-code"> class="hljs-ln-line"> @PostMapping(value = "/chat", produces = MediaType.TEXT_EVENT_STREAM_VALUE)
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="43"> class="hljs-ln-code"> class="hljs-ln-line"> public SseEmitter chat(
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="44"> class="hljs-ln-code"> class="hljs-ln-line">// @RequestHeader("Authorization")String token,
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="45"> class="hljs-ln-code"> class="hljs-ln-line"> @RequestBody String question) {
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="46"> class="hljs-ln-code"> class="hljs-ln-line">// String openid = authService.openid(token);
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="47"> class="hljs-ln-code"> class="hljs-ln-line">// if (openid == null) {
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="48"> class="hljs-ln-code"> class="hljs-ln-line">// throw new RuntimeException("用户未登录");
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="49"> class="hljs-ln-code"> class="hljs-ln-line">// }
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="50"> class="hljs-ln-code"> class="hljs-ln-line"> SseEmitter emitter = new SseEmitter(-1L);
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="51"> class="hljs-ln-code"> class="hljs-ln-line"> executorService.execute(() -> {
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="52"> class="hljs-ln-code"> class="hljs-ln-line"> try {
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="53"> class="hljs-ln-code"> class="hljs-ln-line"> log.info("流式回答开始,问题:{}", question);
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="54"> class="hljs-ln-code"> class="hljs-ln-line"> try (CloseableHttpClient client = HttpClients.createDefault()) {
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="55"> class="hljs-ln-code"> class="hljs-ln-line"> HttpPost request = new HttpPost(API_URL);
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="56"> class="hljs-ln-code"> class="hljs-ln-line"> request.setHeader("Content-Type", "application/json");
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="57"> class="hljs-ln-code"> class="hljs-ln-line"> request.setHeader("Authorization", "Bearer " + API_KEY);
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="58"> class="hljs-ln-code"> class="hljs-ln-line">
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="59"> class="hljs-ln-code"> class="hljs-ln-line"> Map message = new HashMap<>();
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="60"> class="hljs-ln-code"> class="hljs-ln-line"> message.put("role", "user");
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="61"> class="hljs-ln-code"> class="hljs-ln-line"> message.put("content", question);
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="62"> class="hljs-ln-code"> class="hljs-ln-line">
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="63"> class="hljs-ln-code"> class="hljs-ln-line"> Map requestMap = new HashMap<>();
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="64"> class="hljs-ln-code"> class="hljs-ln-line"> requestMap.put("model", "deepseek-chat");
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="65"> class="hljs-ln-code"> class="hljs-ln-line"> requestMap.put("messages", Collections.singletonList(message));
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="66"> class="hljs-ln-code"> class="hljs-ln-line"> requestMap.put("stream", true);
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="67"> class="hljs-ln-code"> class="hljs-ln-line">
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="68"> class="hljs-ln-code"> class="hljs-ln-line"> String requestBody = objectMapper.writeValueAsString(requestMap);
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="69"> class="hljs-ln-code"> class="hljs-ln-line"> request.setEntity(new StringEntity(requestBody, StandardCharsets.UTF_8));
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="70"> class="hljs-ln-code"> class="hljs-ln-line">
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="71"> class="hljs-ln-code"> class="hljs-ln-line"> try (CloseableHttpResponse response = client.execute(request);
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="72"> class="hljs-ln-code"> class="hljs-ln-line"> BufferedReader reader = new BufferedReader(
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="73"> class="hljs-ln-code"> class="hljs-ln-line"> new InputStreamReader(response.getEntity().getContent(), StandardCharsets.UTF_8))) {
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="74"> class="hljs-ln-code"> class="hljs-ln-line"> String line;
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="75"> class="hljs-ln-code"> class="hljs-ln-line"> while ((line = reader.readLine()) != null) {
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="76"> class="hljs-ln-code"> class="hljs-ln-line"> if (line.startsWith("data: ")) {
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="77"> class="hljs-ln-code"> class="hljs-ln-line"> String jsonData = line.substring(6);
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="78"> class="hljs-ln-code"> class="hljs-ln-line"> if ("[DONE]".equals(jsonData)) {
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="79"> class="hljs-ln-code"> class="hljs-ln-line"> break;
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="80"> class="hljs-ln-code"> class="hljs-ln-line"> }
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="81"> class="hljs-ln-code"> class="hljs-ln-line"> JsonNode node = objectMapper.readTree(jsonData);
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="82"> class="hljs-ln-code"> class="hljs-ln-line"> String content = node.path("choices")
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="83"> class="hljs-ln-code"> class="hljs-ln-line"> .path(0)
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="84"> class="hljs-ln-code"> class="hljs-ln-line"> .path("delta")
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="85"> class="hljs-ln-code"> class="hljs-ln-line"> .path("content")
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="86"> class="hljs-ln-code"> class="hljs-ln-line"> .asText("");
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="87"> class="hljs-ln-code"> class="hljs-ln-line"> if (!content.isEmpty()) {
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="88"> class="hljs-ln-code"> class="hljs-ln-line"> emitter.send(content);
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="89"> class="hljs-ln-code"> class="hljs-ln-line"> }
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="90"> class="hljs-ln-code"> class="hljs-ln-line"> }
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="91"> class="hljs-ln-code"> class="hljs-ln-line"> }
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="92"> class="hljs-ln-code"> class="hljs-ln-line"> log.info("流式回答结束,{}",question);
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="93"> class="hljs-ln-code"> class="hljs-ln-line"> emitter.complete();
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="94"> class="hljs-ln-code"> class="hljs-ln-line"> }
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="95"> class="hljs-ln-code"> class="hljs-ln-line"> } catch (Exception e) {
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="96"> class="hljs-ln-code"> class="hljs-ln-line"> log.error("处理 Deepseek 请求时发生错误", e);
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="97"> class="hljs-ln-code"> class="hljs-ln-line"> emitter.completeWithError(e);
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="98"> class="hljs-ln-code"> class="hljs-ln-line"> }
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="99"> class="hljs-ln-code"> class="hljs-ln-line"> } catch (Exception e) {
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="100"> class="hljs-ln-code"> class="hljs-ln-line"> log.error("处理 Deepseek 请求时发生错误", e);
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="101"> class="hljs-ln-code"> class="hljs-ln-line"> emitter.completeWithError(e);
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="102"> class="hljs-ln-code"> class="hljs-ln-line"> }
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="103"> class="hljs-ln-code"> class="hljs-ln-line"> });
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="104"> class="hljs-ln-code"> class="hljs-ln-line"> return emitter;
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="105"> class="hljs-ln-code"> class="hljs-ln-line"> }
  • class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="106"> class="hljs-ln-code"> class="hljs-ln-line">}
    •  class="hide-preCode-box"> class="hljs-button signin active" data-title="登录复制" data-report-click="{"spm":"1001.2101.3001.4334"}" onclick="hljs.signin(event)">

    3.调用测试

    1.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="1"> class="hljs-ln-code"> class="hljs-ln-line">curl -v -X POST \
    2.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="2"> class="hljs-ln-code"> class="hljs-ln-line">    http://localhost:8091/api/v1/chat \
    3.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="3"> class="hljs-ln-code"> class="hljs-ln-line">    -H "Content-Type: application/json" \
    4.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="4"> class="hljs-ln-code"> class="hljs-ln-line">    -d '"帮我写一篇2000字的 我的祖国的文字"' \
    5.  class="hljs-ln-numbers"> class="hljs-ln-line hljs-ln-n" data-line-number="5"> class="hljs-ln-code"> class="hljs-ln-line">    --no-buffer
     class="hljs-button signin active" data-title="登录复制" data-report-click="{"spm":"1001.2101.3001.4334"}" onclick="hljs.signin(event)">

    打开终端输入上述命令回车即可 但是端口必须要和你后端的一致 我这里是8091

    4.运行结果

    >>
    注：本文转载自blog.csdn.net的PlutoZuo的文章"https://blog.csdn.net/PlutoZuo/article/details/133302706"。版权归原作者所有，此博客不拥有其著作权，亦不承担相应法律责任。如有侵权，请联系我们删除。
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