diff --git a/codes/wangzixu/20330748.java b/codes/wangzixu/20330748.java
new file mode 100644
index 0000000000000000000000000000000000000000..ab1217af51b5f56b62e539120a1457aa32591070
--- /dev/null
+++ b/codes/wangzixu/20330748.java
@@ -0,0 +1,20 @@
+/**
+ * 冒泡排序函数
+ * aa bb cc
+ * @param a 待排序的数组
+ * @param n 待排序的数组长度
+ */
+public static void bubbleSort(int [] a, int n){
+    // 你的代码，使无序数组 a 变得有序
+    for(int i = 0; i < n; i++) {
+    	for(int j = i + 1; j < n; j++) {
+		if(a[i] > a[j]) {
+			int t = a[i];
+			a[i] = a[j];
+			a[j] = t;
+		}
+	}
+    }
+    
+
+} //end