å¦éå¾æ å·æ示ï¼
4个ç»ç¹ï¼aãbãcãdã
6æ¡æ¯è·¯ï¼åå«æ¯daãbdãdcãabãbcåac
7个åè·¯æ¯dabdãdbcdãacbaãdacdãdabcdãdacbdãdbcad
å ¶ä¸åä¸ä¸ªä¸ºç½åã
ç»ç¹çµæµæ¹ç¨åç½åçµåæ¹ç¨éè¦æåèæ¹åï¼å¾ä¸æªæ ï¼è®¾ææçµæµåçµåæ¹åå为èªå·¦å¾å³ï¼èªä¸å¾ä¸ï¼æ串è转ææ¯è·¯daãdcèªå·¦å¾å³ï¼acèªä¸å¾ä¸ï¼ï¼
ç»ç¹çµæµæ¹ç¨æï¼
ç»ç¹aï¼I1-I5-I3=0
ç»ç¹bï¼I4+I5-I6=0
ç»ç¹cï¼I2+I3+I6=0
ç»ç¹dï¼-I1-I2-I4=0
ç½åçµåæ¹ç¨æï¼
dabdï¼-Us1+I1R1+I5R5-I4R4=0
dbcdï¼I4R4+I6R6-Us2-I2R2=0
acbaï¼Us3+I3R3-I6R6-I5R5=0