uint32_t ADC_Value[2];//ADC采集存储
uint8_t i;
float ad1,ad2;存储转化为电压的变量

for(i=0;i<2;i++)
      {
          HAL_ADC_Start(&hadc1);
          HAL_ADC_PollForConversion(&hadc1,0xffff);
          ADC_Value[i]=HAL_ADC_GetValue(&hadc1);
      }
      HAL_ADC_Stop(&hadc1);
      ad1 = (float)(ADC_Value[0]&0xFFF)*3.3/4096;
      ad2 = (float)(ADC_Value[1]&0xFFF)*3.3/4096;