angular-docs-cn/modules/angular2/docs/cheatsheet/directive-configuration.md

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@cheatsheetSection
Directive configuration
@cheatsheetIndex 5
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@description
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`@Directive({ property1: value1, ... }) )`
@cheatsheetItem
`selector: '.cool-button:not(a)'`|`selector:`
Specifies a css selector that identifies this directive within a template. Supported selectors include: `element`,
`[attribute]`, `.class`, and `:not()`.
Does not support parent-child relationship selectors.
@cheatsheetItem
`providers: [MyService, provide(...)]`|`providers:`
Array of dependency injection providers for this directive and its children.