使用angular cdk复制，

Module.ts

import {ClipboardModule} from '@angular/cdk/clipboard';

以编程方式复制一个字符串:

class MyComponent {
  constructor(private clipboard: Clipboard) {}

  copyHeroName() {
    this.clipboard.copy('Alphonso');
  }
}

点击一个元素通过HTML复制:

<button [cdkCopyToClipboard]="longText" [cdkCopyToClipboardAttempts]="2">Copy text</button>

参考: https://material.angular.io/cdk/clipboard/overview

很简单，兄弟

在.html文件

<button (click)="copyMessage('This goes to Clipboard')" value="click to copy" >Copy this</button>

在.ts文件

copyMessage(text: string) {
  navigator.clipboard.writeText(text).then().catch(e => console.log(e));
}

以下是@Sangram的回答(以及@Jonathan的评论)的解决方案1:

(支持“不要在angular中使用普通文档”和“如果你没有必要，不要从代码中添加HTML元素……”)

// TS @ViewChild('textarea') textarea: ElementRef; constructor(@Inject(DOCUMENT) private document: Document) {} public copyToClipboard(text): void { console.log(`> copyToClipboard(): copied "${text}"`); this.textarea.nativeElement.value = text; this.textarea.nativeElement.focus(); this.textarea.nativeElement.select(); this.document.execCommand('copy'); } /* CSS */ .textarea-for-clipboard-copy { left: -10000; opacity: 0; position: fixed; top: -10000; } <!-- HTML --> <textarea class="textarea-for-clipboard-copy" #textarea></textarea>

copyCurl(val: string){
    navigator.clipboard.writeText(val).then( () => {
      this.toastr.success('Text copied to clipboard');
    }).catch( () => {
      this.toastr.error('Failed to copy to clipboard');
    });
}

以下方法可用于复制消息:-

export function copyTextAreaToClipBoard(message: string) {
  const cleanText = message.replace(/<\/?[^>]+(>|$)/g, '');
  const x = document.createElement('TEXTAREA') as HTMLTextAreaElement;
  x.value = cleanText;
  document.body.appendChild(x);
  x.select();
  document.execCommand('copy');
  document.body.removeChild(x);
}

// for copy the text
import { Clipboard } from "@angular/cdk/clipboard"; // first import this in .ts
 constructor(
    public clipboard: Clipboard
  ) { }   
 <button class="btn btn-success btn-block"(click) = "onCopy('some text')" > Copy< /button>

 onCopy(value) {
     this.clipboard.copy(value);
    }


 // for paste the copied text on button click :here is code
    
    <button class="btn btn-success btn-block"(click) = "onpaste()" > Paste < /button>
    
    onpaste() {
      navigator['clipboard'].readText().then(clipText => {
        console.log(clipText);
      });
    }