cargo fmt

code/ch01-02/src/object/handle.rs

@@ -1,5 +1,5 @@
 // ANCHOR: handle
-use super::{KernelObject, Rights, DummyObject};
+use super::{DummyObject, KernelObject, Rights};
 use alloc::sync::Arc;
 
 /// 内核对象句柄
@@ -26,4 +26,4 @@ mod tests {
         let obj = DummyObject::new();
         let handle1 = Handle::new(obj.clone(), Rights::BASIC);
     }
-}
+}