nav[aria-label="Primary Navigation"] { padding: 0; & ul { list-style: none; width: 100%; display: flex; flex-direction: row; justify-content: start; align-items: start; gap: 30px; padding: 0; & li { margin: 0; } & ul li { list-style: none; } } }

251020_zh-CN

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获取类的所有对象（实例）？

使用过类的人是否知道一种获取指定类的当前现有实例列表的方法（又名从特定的类定义创建的对象）？

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