angular-docs-cn/modules/angular2/docs/cheatsheet/forms.md

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@cheatsheetSection Forms @cheatsheetIndex 3 @description {@target ts}import {FORM_DIRECTIVES} from 'angular2/common';{@endtarget} {@target js}Available from ng.common.FORM_DIRECTIVES{@endtarget} {@target dart}Available using platform_directives in pubspec{@endtarget}

@cheatsheetItem syntax: <input [(ngModel)]="userName">|[(ngModel)] description: Provides two-way data-binding, parsing and validation for form controls.