const _isFibonacci = (array) => {
    // 补全代码
    if (array.length < 3 || array[0] !== 0 || array[1] !== 1) return false;
    return array.every((item, index) => {
        return index < 3
            ? array[0] === 0 && array[1] === 1 && array[2] === 1
            : item === array[index - 1] + array[index - 2];
    });
};