https://stackblitz.com/edit/angular-upload-image-display-thumbnails?file=src/main.ts
<h1>上传图片显示缩略图</h1>
<img height="100px" width="100px" [src]="_d.bypassSecurityTrustUrl(imgsrc)">
<input type="file" (change)="fileChange($event)">
import { Component } from '@angular/core';
import { DomSanitizer } from '@angular/platform-browser';
@Component({
selector: 'my-app',
templateUrl: './app.component.html',
styleUrls: [ './app.component.css' ]
})
export class AppComponent {
imgsrc = 'https://c.staticblitz.com/assets/client/components/SideMenu/blitz_logo-11cebad97cad4b50bc955cf72f532d1b.png';
constructor(
public _d: DomSanitizer // 图片路径转换使用，使用见HMTL文件
) { }
fileChange(e) {
const file = e.srcElement.files[0]; // 获取图片这里只操作一张图片
this.imgsrc = window.URL.createObjectURL(file); // 获取上传的图片临时路径
}
}
