# 2015年9月11日 ## Services与指令的使用 ### 自定义一个Services服务 四种方法 ： ```

{{realname}}

{{http}}

{{data.msg}}

{{uName}}

``` value的值可以改变。 ### 常用指令 **ng-show/hide，ng-if** ``` ``` 显示与否取决于 `inShowImg` 的值是`true`或者`false`。 **ng-dissbled** ``` ``` `.$invalid`是内置表单验证方法。可以在前面的标签中加上`required`为必填项，没有的时候提交会置回。 **ng-submit** 可以使用在表单提交时运行函数。 ### 常用指令 ng-repeat 的使用 ```

  • {{a.address}}

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