update c example
update c example

BlueHouseLab/sms-openapi,BlueHouseLab/sms-openapi,BlueHouseLab/sms-openapi,BlueHouseLab/sms-openapi,BlueHouseLab/sms-openapi,BlueHouseLab/sms-openapi,BlueHouseLab/sms-openapi,BlueHouseLab/sms-openapi,BlueHouseLab/sms-openapi