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))