new装饰器

语言特性/装饰/tf-19A.py

@@ -0,0 +1,34 @@
+from collections import Counter
+import cppy.cp_util as util
+
+def word_frequency( top_n=10 ):
+    def decorator(func):
+        def wrapper(*args, **kwargs):
+            # 执行被装饰的函数
+            result = func(*args, **kwargs)
+            
+            # 初始化词频计数器
+            word_counts = Counter()
+            
+            # 分词并计数
+            for word in util.extract_str_words(result):
+                word_counts[word] += 1            
+            
+            # 输出所有词的频率最高的n个词            
+            most_common = word_counts.most_common(top_n)            
+            for w, count in most_common:
+                print(f"{w} - {count}")
+            return result
+        
+        return wrapper
+    return decorator
+
+
+# 使用装饰器
+@word_frequency( top_n=10 )
+def read_file(file_path):
+    with open(file_path, 'r', encoding='utf-8') as file:
+        return file.read()
+
+
+read_file( util.testfilepath )