AliOS-Things--EMW3060--KV

詳情介紹：https://yq.aliyun.com/articles/291229

 KV就是一個小型的以key-value方式存儲的存儲模塊，它是把數據存儲在FLASH上面，可以斷電保存， kv對外提供了4個接口 。

• aos_kv_set
• aos_kv_get
• aos_kv_del
• aos_kv_del_by_prefix

實例：

static void write_kv(void)
{
    char key[10] = "test";
    char value[10] = "test_value";
    int len = 10;

    printf(">>>aos_kv_set:%d\r\n", aos_kv_set(key, value, len, 1));
}

static void read_kv(void)
{
    char key[10] = {0};
    char value[10] = {0};
    int len = 10; 

    printf(">>>>aos_kv_get:%d\r\n", aos_kv_get("test", value, len));

    printf("aos_kv_get>>>>%s\r\n", value);
}