显示简单值的工具提示
要显示简单变量的值，请在代码编辑器中将鼠标指针悬停在其名称上。
要保持工具提示可见，请选择固定按钮。您可以展开已固定的工具提示，查看其完整内容。
已固定的工具提示保存在会话中。要关闭所有固定的工具提示，请在Locals 或Expressions 视图的上下文菜单中选择Close Editor Tooltips 。
要出于性能原因禁用工具提示，请转到首选项>Debugger >General >Use tooltips in main editor when debugging 。
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