报错代码：
if(ret == ESP_FAIL)
return ret;
改为：
if(ret == ESP_FAIL){
return ret;
}
error: this ‘if’ clause does not guard… [-Werror=misleading-indentation]
arm,dsp,pcb,fpga,zynq,常用软件altium designed,算法
报错代码：
if(ret == ESP_FAIL)
return ret;
改为：
if(ret == ESP_FAIL){
return ret;
}