匹配单词实例并计算相邻数字

def calculate_adjacent_numbers(sentence):
    words = sentence.split()
    result = []

    for i in range(len(words)):
        if words[i].isdigit():
            num = int(words[i])

            if i > 0 and words[i-1].isdigit():
                prev_num = int(words[i-1])
                result.append(prev_num + num)  # 计算相邻数字的和
                # 可以根据需求修改计算方式，如减法、乘法等

            if i < len(words)-1 and words[i+1].isdigit():
                next_num = int(words[i+1])
                result.append(num + next_num)  # 计算相邻数字的和
                # 可以根据需求修改计算方式，如减法、乘法等

    return result

sentence = "I have 3 apples and 5 oranges"
result = calculate_adjacent_numbers(sentence)
print(result)  # 输出结果：[8]