Angular:如何检查post或put请求后的http代码？

import { HttpClient, HttpHeaders } from '@angular/common/http';

// 在构造函数中注入HttpClient
constructor(private http: HttpClient) {}

// 发送POST请求的示例代码
postData(url: string, data: any) {
  const headers = new HttpHeaders({ 'Content-Type': 'application/json' });

  this.http.post(url, data, { headers, observe: 'response' })
    .subscribe(response => {
      console.log('HTTP code:', response.status);
      // 在这里可以根据HTTP代码进行相应的处理
    }, error => {
      console.error('Error:', error);
    });
}

// 发送PUT请求的示例代码
putData(url: string, data: any) {
  const headers = new HttpHeaders({ 'Content-Type': 'application/json' });

  this.http.put(url, data, { headers, observe: 'response' })
    .subscribe(response => {
      console.log('HTTP code:', response.status);
      // 在这里可以根据HTTP代码进行相应的处理
    }, error => {
      console.error('Error:', error);
    });
}