如何检查二维向量元素是否在某个索引范围内

def check_vector_in_range(vector, start_index, end_index):
    rows, cols = len(vector), len(vector[0])
    
    # 检查行数和列数是否在索引范围内
    if start_index[0] <= rows <= end_index[0] and start_index[1] <= cols <= end_index[1]:
        return True
    
    # 检查每个元素的索引是否在范围内
    for i in range(rows):
        for j in range(cols):
            if start_index[0] <= i <= end_index[0] and start_index[1] <= j <= end_index[1]:
                return True
    
    return False

# 示例用法
vector = [[1, 2, 3], [4, 5, 6], [7, 8, 9]]
start_index = (0, 0)
end_index = (1, 1)
result = check_vector_in_range(vector, start_index, end_index)
print(result)  # 输出：True