cJSON的字符长度和字符比较以及数组

字符长度
char *reporte_connect_ok(void)
{
cJSON *root;
char *out;

char name0[125]; char str_value0[125]; char macaddr[20]; char ipaddr[30]; root=cJSON_CreateObject(); cJSON_AddStringToObject(root,"Device","Gateway"); get_mac_addr(macaddr); cJSON_AddStringToObject(root,"MAC",macaddr); get_ip_addr(ipaddr); cJSON_AddStringToObject(root,"IP",ipaddr); cJSON_AddStringToObject(root,"Vendor","Hitouch"); cJSON_AddStringToObject(root,"Module","EasyShare S1"); out=cJSON_Print(root); cJSON_Delete(root); printf("out:%s\n",out); return out;

}
//这个函数在上面
rep= reporte_connect_ok();
//是这样求json后面通过tcp发送的长度的
len = strlen(rep);
write_client1((unsigned char *)rep,len);

//值字符串比较
cJSON *operation = get_object_item(patch, “op”, case_sensitive);
if (!cJSON_IsString(operation))
{
return INVALID;
}

if (strcmp(operation->valuestring, "add") == 0) { return ADD; } if (strcmp(operation->valuestring, "remove") == 0) { return REMOVE; } if (strcmp(operation->valuestring, "replace") == 0) { return REPLACE; }

/////////////////////////////////////////////
int buff[10];

cJSON *root,*name,*item; char *out; root=cJSON_CreateObject(); buff[0]= 0xaa; buff[1]= 0x01; buff[2]= 0x17; buff[3]= 0x23; buff[4]= 0x10; buff[5]= 0x00; buff[6]= 0x00; buff[7]= 0x01; buff[8] = '\0'; cJSON_AddStringToObject(root,"from","USBSerial"); cJSON_AddItemToObject(root, "info", cJSON_CreateIntArray(buff, 9)); out=cJSON_Print(root); cJSON_Delete(root); root = cJSON_Parse(out); printf("%s",out); item = cJSON_GetObjectItem(root,"from"); printf("from name->string==%s\n",item->valuestring); item = cJSON_GetObjectItem(root,"info"); int i;

for (i = 0; i < cJSON_GetArraySize(item); i++)
{
cJSON *subitem = cJSON_GetArrayItem(item, i); // handle subitem
printf(“subitem %d\n”,subitem->valueint);
}