diff --git a/problems/1207.独一无二的出现次数.md b/problems/1207.独一无二的出现次数.md
index afc93eda..1a7a0019 100644
--- a/problems/1207.独一无二的出现次数.md
+++ b/problems/1207.独一无二的出现次数.md
@@ -98,7 +98,8 @@ class Solution {
 ```
 
 Python：
-```python
+```python 
+# 方法 1: 数组在哈西法的应用
 class Solution:
     def uniqueOccurrences(self, arr: List[int]) -> bool:
         count = [0] * 2002
@@ -113,6 +114,26 @@ class Solution:
                     return False
         return True
 ```
+```python 
+# 方法 2： map 在哈西法的应用
+class Solution:
+    def uniqueOccurrences(self, arr: List[int]) -> bool:
+        ref = dict()
+
+        for i in range(len(arr)):
+            ref[arr[i]] = ref.get(arr[i], 0) + 1
+
+        value_list = sorted(ref.values())
+
+        for i in range(len(value_list) - 1):
+            if value_list[i + 1] == value_list[i]:
+                return False 
+
+        return True 
+
+```
+
+
 Go：
 
 JavaScript：