2025-09-10:仓库迁移

1.数据结构与算法/12.找出现最多元素.py

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+words = ["look", "into", "my", "eyes", "look", "into", "my", "eyes",
+        "the", "eyes", "the", "eyes", "the", "eyes", "not", "around", "the",
+        "eyes", "don't", "look", "around", "the", "eyes", "look", "into",
+        "my", "eyes", "you're", "under"]
+
+# collect里面的Counter库可以帮我们计数
+from collections import Counter
+
+word_counts = Counter(words)
+top_three = word_counts.most_common(3)
+print(top_three)
+
+# Counter的底层是一个字典,是一个DefaultDict,这里处于学习目的把它实现一遍
+from collections import defaultdict
+
+def counter(word_list):
+    counter = defaultdict(int)
+    for word in word_list:
+        counter[word] += 1
+    
+    return counter
+
+print(counter(words))
+