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//! `alloc` crate 的 prelude 的第一个版本。 //! //! 有关更多信息，请参见 [module-level documentation](../index.html)。 #![unstable(feature = "alloc_prelude", issue = "58935")] #[unstable(feature = "alloc_prelude", issue = "58935")] pub use crate::borrow::ToOwned; #[unstable(feature = "alloc_prelude", issue = "58935")] pub use crate::boxed::Box; #[unstable(feature = "alloc_prelude", issue = "58935")] pub use crate::string::{String, ToString}; #[unstable(feature = "alloc_prelude", issue = "58935")] pub use crate::vec::Vec;