Introduction

让我们从一个简单的应用程序开始，它在一个视图中打印“hello world”。

Lets start with a simple app which prints "hello world" in a view.

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这里没有太多需要看的，除了 TerminalUI 是一个处理围绕视图的所有逻辑的类，并将 View 用作其根视图。

There is not much to see here other than TerminalUI is a class handling all logic aroung views and uses View as it’s root view.