对称互斥PWM软仿真mutexPWM_simTest, 少走弯路直接打开运行软件仿真即可看到对称互斥PWM波形, 下载到哑STM32F10x系列芯片中就有波形，示波器验证通过.(Symmetric mutual exclusion PWM soft simulation mutexPWM_simTest, less detours, directly open the software simulation, you can see symmetric mutex PWM waveform, d