乐高机器人的全部资料，包括原理图，源代码，和开发文档，非常难得的资料。不论是做玩具还是做工业机器人，都有很宝贵的参考作用。-Lego robots all information, including schematics, source code, and documentation, is very rare. Either do or do industrial robot toys, have a very valuable reference.