xcode Swift：如何在 Playground 中绘制 UI？
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Swift: How to draw UIs in Playground?
提问by mengto
How to draw UIs (Rectangle, Buttons, Views, etc) and view the results in real-time, as shown here: https://devimages.apple.com.edgekey.net/swift/images/swift-screenshot.jpg? All I can see is the Console Output, but I can't find the option to show the visual display (Balloons) and the chart.
如何绘制 UI（矩形、按钮、视图等）并实时查看结果，如下所示：https: //devimages.apple.com.edgekey.net/swift/images/swift-screenshot.jpg？我只能看到控制台输出，但我找不到显示视觉显示（气球）和图表的选项。
采纳答案by rickster
Charts appear in the Assistant editor when you have something like a forloop, or for anything where you press the quick look or circle/plus buttons when mousing over the results area. See Viewing Results of an Executed Statementin Playground Help.
当您有for循环之类的内容时，或者在将鼠标悬停在结果区域上时按下快速查看或圆圈/加号按钮的任何内容时，图表会出现在“助手”编辑器中。见一个执行的语句查看结果在游乐场帮助。
