angular hero学习

install node
https://nodejs.org

C:\xxx\Downloads\node-v20.10.0-x64
C:\Program Files\nodejs\

C:\angular>node -v
v20.10.0
C:\angular>npm -v
10.2.3

install angualr
npm install -g @angular/cli
error

# 设置淘宝源
npm config set registry https://registry.npm.taobao.org
npm config set sass_binary_site http://cdn.npm.taobao.org/dist/node-sass
# 恢复默认源
npm config delete registry
npm config delete sass_binary_site

C:\angular>npm install -g @angular/cli

added 227 packages in 16s
npm notice
npm notice New patch version of npm available! 10.2.3 -> 10.2.5
npm notice Changelog: https://github.com/npm/cli/releases/tag/v10.2.5
npm notice Run npm install -g npm@10.2.5 to update!
npm notice

ng new angular-tour-of-heroes --no-standalone --routing --ssr=false
cd angular-tour-of-heroes
ng serve --open

修改显示：
title = 'Tour of Heroes';
双花括号语法是 Angular 的插值绑定语法
<h1>{{title}}</h1>
打开 src/styles.css 并把下列代码添加到此文件中。

创建新组件
ng generate component heroes
C:\angular\angular-tour-of-heroes>ng generate component heroes
CREATE src/app/heroes/heroes.component.html (21 bytes)
CREATE src/app/heroes/heroes.component.spec.ts (601 bytes)
CREATE src/app/heroes/heroes.component.ts (199 bytes)
CREATE src/app/heroes/heroes.component.css (0 bytes)
UPDATE src/app/app.module.ts (475 bytes)

hero = 'Windstorm';

接口类：
export interface Hero {
? id: number;
? name: string;
}

管道
<h2>{{hero.name | uppercase}} Details</h2>

双向绑定
<div>
? <label for="name">Hero name: </label>
? <input id="name" [(ngModel)]="hero.name" placeholder="name">
</div>