PrismKit速查表ISO 3166 國家代碼ISO 3166 國家代碼在瀏覽器中執行本機複製連結Markdown依名稱、alpha-2、alpha-3 或數字代碼搜尋所有 ISO 3166-1 國家，附國旗表情符號。RJ45 接線速查表T568A and T568B pin colours, straight vs crossover cables, gigabit pairs and PoE pin usage for RJ45 Ethernet.ISO 639 語言代碼Search all ISO 639-1 two-letter language codes with their ISO 639-2 three-letter equivalents.