angular4-事件绑定

<date-picker (dateChanged)="statement()"></date-picker>
等价于：
<date-picker on-dateChanged="statement()"></date-picker>

@Component({
    selector: ‘sl-user‘,
    template: `
    <button (click)="toggleSkills()">
        {{ showSkills ? "隐藏技能" : "显示技能" }}
    </button>
    `
})
export class UserComponent {
    toggleSkills() {
        this.showSkills = !this.showSkills;
    }
}