-
You can use this approach whenever the lifetime of the mapping must be tied to the lifetime of the key.
当映射的生命周期必须与键的生命周期联系在一起时,可以使用这种方法。
youdao
-
You can use this approach whenever the lifetime of the mapping must be tied to the lifetime of the key.
当映射的生命周期必须与键的生命周期联系在一起时,可以使用这种方法。
youdao