查询某一字段最小值的语句可以使用MIN()函数，例如：
SELECT MIN(field) FROM mytable;
在C语言接口中，可以通过mysql_fetch_row函数获取查询结果，然后判断第一列是否为NULL或者查询结果集行数是否为0。以下是示例代码：
MYSQL_RES *result;MYSQL_ROW row;// 执行查询语句if (mysql_query(&mysql, "SELECT MIN(field) FROM mytable")) {printf("Query failed: %s\n", mysql_error(&mysql));return;}// 获取查询结果集result = mysql_store_result(&mysql);// 判断查询结果是否为空if (mysql_num_rows(result) == 0 || (row = mysql_fetch_row(result)) == NULL || row[0] == NULL) {printf("Query result is empty.\n");} else {printf("The minimum value is %s.\n", row[0]);}// 释放结果集mysql_free_result(result);
![/data # iw --debug dev wlan0 connect -w "lucky-5g" auth open key 0:1234567890
Usage: iw [options] dev connect [-w] [] [] [auth open|shared] [key 0:abcde d:1:6162636465] [mfp:req/opt/no]
Join the network with ...](https://linuxcpp.0voice.com/zb_users/upload/2023/05/202305162239148267954.png)
![驱动代码
void kalRxTaskletSchedule(struct GLUE_INFO *pr)
{
static unsigned int num = 0;
tasklet_hi_schedule(&pr->rRxTask[(num++)%NR_CPUS]);
// tasklet_hi_schedule(&pr->rRxTask);
DBGLOG(HAL, ERROR,](https://linuxcpp.0voice.com/zb_users/upload/2023/05/202305162226144313964.png)
