åæä¿¡ç¨åä½ç¤¾çå¸å·æ¯22ä½æ°çã
è¡¥å
:é¶è¡å¡å¡å·ç®ä»
1.é¶è¡å¡å¡å·æ¯æå个é¶è¡åè¡ç硬å¡ä¸çç¼å·ä»£ç ï¼å个åä¸é¶è¡ä¹é´çä¸å¡å·æ®µæç»ä¸çè§å®ã
2.å¡å·çå6ä½æ°å代表åå¡è¡æ è¯ä»£ç ï¼ä¹å«BINå·ï¼ä¸åçBINå·ä»£è¡¨äºä¸åçé¶è¡å¡ç»ç»åå¡ç级å«ã