diff --git a/计算设备/缓存/84.py b/计算设备/缓存/84.py
new file mode 100644
index 0000000..1eb56ca
--- /dev/null
+++ b/计算设备/缓存/84.py
@@ -0,0 +1,25 @@
+import re
+from collections import Counter
+from cppy.cp_util import *
+
+# 缓存系统，使用字典来存储文件路径和对应的词频结果; 可以存到本地磁盘，就可重复利用计算结果
+word_freq_cache = {}
+
+def calculate_word_frequency(file_path):
+    # 如果文件路径已经在缓存中，直接返回缓存的结果
+    if file_path in word_freq_cache:
+        return word_freq_cache[file_path]
+
+    # 计算词频
+    words = extract_file_words(file_path)
+    word_counts = Counter(words)
+
+    # 将结果存储到缓存中
+    word_freq_cache[file_path] = word_counts.most_common(10)
+
+    return word_freq_cache[file_path]
+
+# 测试函数
+top_10_words = calculate_word_frequency(testfilepath)
+for word, freq in top_10_words:
+    print(f"{word}: {freq}")
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