# 初始化字典
word_dict = {}

# 添加单词的函数
def add_word(word):
    first_char = word[0].lower()  # 获取首字母并转为小写
    if first_char not in word_dict:
        word_dict[first_char] = []
    if word not in word_dict[first_char]:  # 避免重复
        word_dict[first_char].append(word)

# 示例使用
words = ["apple", "banana", "apricot", "cherry", "blueberry", "avocado"]
for word in words:
    add_word(word)

print(word_dict)

// 初始化对象
const wordDict = {};

// 添加单词的函数
function addWord(word) {
    const firstChar = word[0].toLowerCase();
    if (!wordDict[firstChar]) {
        wordDict[firstChar] = [];
    }
    if (!wordDict[firstChar].includes(word)) {  // 避免重复
        wordDict[firstChar].push(word);
    }
}

// 示例使用
const words = ["apple", "banana", "apricot", "cherry", "blueberry", "avocado"];
words.forEach(word => addWord(word));

console.log(wordDict);