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2 changes: 1 addition & 1 deletion doc/operators.md
Original file line number Diff line number Diff line change
Expand Up @@ -67,7 +67,7 @@ observable.subscribe(x => console.log(x));

**什么是静态操作符?** - 除了实例操作符,还有静态操作符,它们是直接附加到 Observable 类上的。静态操作符在内部不使用 `this` 关键字,而是完全依赖于它的参数。

<span class="informal">静态操作符是附加到 Observalbe 类上的纯函数,通常用来从头开始创建 Observalbe 。</span>
<span class="informal">静态操作符是附加到 Observable 类上的纯函数,通常用来从头开始创建 Observable 。</span>

最常用的静态操作符类型是所谓的**创建操作符**。它们只接收非 Observable 参数,比如数字,然后**创建**一个新的 Observable ,而不是将一个输入 Observable 转换为输出 Observable 。

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