angular-docs-cn/public/docs/_examples/attribute-directives/ts/app/app.component.html

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<h1>My First Attribute Directive</h1>
<h4>Pick a highlight color</h4>
<div>
  <input type="radio" name="colors" (click)="color='lightgreen'">Green
  <input type="radio" name="colors" (click)="color='yellow'">Yellow
  <input type="radio" name="colors" (click)="color='cyan'">Cyan
</div>

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<p [myHighlight]="color">Highlight me!</p>
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<p [myHighlight]="color" [defaultColor]="'violet'">
  Highlight me too!
</p>
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