angular4 Output

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angular输出属性output

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import { Component, Input, Output, EventEmitter } from '@angular/core';

@Component({
    selector: 'zn-counter'
})
export class CounterComponent {

    constructor (){
    }

    @Input () count: number: 0;

    @Output() change: EventEmintter<number> = new EventEmintter<number>();

    icrement() {
        this.count ++;
        this.change.emit(this.count);
    }

    decrement() {
        this.count --;
        this.change.emint(this.count);
    }
}
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