自学 A>B)=(4=B3)(A2=B2)(A4=B1(4=B)A=B) (2=B3)X42=B2C4=B)4=BMA<b +(A4<B3)+(A3=B3)(A2<B2) +(A3=B3)(A2=B2)(A4<B1) (A>B)=AB 0.1.2.3 +(4=BX42=B2M4=B14<B)(4<B)=AB i=0.12.3 (4<B)o=(4=B3)(2=B2XA=B1(A=B(4=B) +(A3=B42=B2)(4=B)A=B(A>B) +(A3>B3)+(A3=B3)(A2>B2) +(A3=B3)(A2=B2)A4>B1) +(43=B3)(A2=B2)(A1=B1)(A>B0) 2021/223 作者:清华大学电子工程系罗嵘 第76页2021/2/23 作者：清华大学电子工程系罗嵘 第76页 ( )( )( )( ) ( )( )( ) ( ) ( )( ) ( )( )( )( )( ) ( ) ( )( )( )( )( ) 3 3 2 2 1 1 0 0 3 3 2 2 1 1 3 3 3 3 2 2 3 3 2 2 1 1 0 0 3 3 2 2 1 1 0 0 A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B I O I + = = =  + = =  +  + =  + = = = =   = = = = = = ( )( )( )( ) ( )( )( ) ( ) ( )( ) ( )( )( )( )( ) ( ) ( )( )( )( )( ) 3 3 2 2 1 1 0 0 3 3 2 2 1 1 3 3 3 3 2 2 3 3 2 2 1 1 0 0 3 3 2 2 1 1 0 0 A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B I O I + = = =  + = =  +  + =  + = = = =   = = = = = = ( ) 0,1,2,3 ( ) 0,1,2,3  = =  = = A B A B i A B A B i i i i i i i i i 自学