As you build the Landmarks app, you can use any combination of editors: the source editor,

the canvas, or the inspectors.

Your code stays updated, regardless of which tool you use.

在构建Landmarks应用程序时，您可以使用任何编辑器组合：

源编辑器，画布或检查器。

无论您使用哪种工具，代码都会保持更新。