diff --git a/2.hello_cargo/src/main.rs b/2.hello_cargo/src/main.rs
index 6a27613..8569947 100644
--- a/2.hello_cargo/src/main.rs
+++ b/2.hello_cargo/src/main.rs
@@ -15,4 +15,4 @@
 
 fn main() {
     println!("Hello, world!");
-}
+}
\ No newline at end of file
diff --git a/x.bubble_sort/Cargo.toml b/x.bubble_sort/Cargo.toml
new file mode 100644
index 0000000..45f24f8
--- /dev/null
+++ b/x.bubble_sort/Cargo.toml
@@ -0,0 +1,6 @@
+[package]
+name = "bubble_sort"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
diff --git a/x.bubble_sort/src/main.rs b/x.bubble_sort/src/main.rs
new file mode 100644
index 0000000..11c55c3
--- /dev/null
+++ b/x.bubble_sort/src/main.rs
@@ -0,0 +1,17 @@
+/// 冒泡排序算法
+fn bubble_sort<T: Ord>(arr: &mut [T]) {
+    for i in 0..arr.len() {
+        for j in 0..arr.len() - 1 - i {
+            if arr[j] > arr[j + 1] {
+                arr.swap(j, j + 1);
+            }
+        }
+    }
+}
+
+fn main() {
+    let mut arr = vec![5, 3, 8, 4, 2, -1, 10];
+    println!("原始 array: {:?}", arr);
+    bubble_sort(&mut arr);
+    println!("排序 array: {:?}", arr);
+}