说明：  电机驱动入门资料，完全中文解释，有点小bug但无伤大雅，基本没问题，熟悉之后运行电机无感无刷电机完全没问题
(The introduction data of motor drive is completely explained in Chinese. It's a little buggy, but it's harmless. Basically, it's OK. After getting familiar with it, it's OK to run the motor senseless and brushless motor)