第14行断点会显示一个小箭头，标示着程序执行停止在此。
A small arrow appears over the breakpoint icon at line 14, indicating that execution has stopped there.
在第6行添加一个断点，并保存更改。
您可以在编辑器中单击需要放置断点的行的最左侧列来完成。
You can do so by clicking the leftmost column in the editor, adjacent to the line on which you want the place the breakpoint.
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