( 30 )有以下程序# include stdio.hmain (){ int b [3][3]= { O , 1 , 2 , 0 , 1 , 2 , O , 1 , 2 } , i , j , t=1 ;for ( i=0 ; i3 ; i++ )for ( j=ij=1 ; j++ ) t+=b[i][b[j][i]] ;printf ( " %d\n " ,t ) ;}程序运行后的输出结果是A ) 1B ) 3C ) 4D ) 9

( 30 )有以下程序

# include <stdio.h>

main ()

{ int b [3][3]= { O , 1 , 2 , 0 , 1 , 2 , O , 1 , 2 } , i , j , t=1 ;

for ( i=0 ; i<3 ; i++ )

for ( j=ij<=1 ; j++ ) t+=b[i][b[j][i]] ;

printf ( " %d\n " ,t ) ;

程序运行后的输出结果是

A ) 1

B ) 3

C ) 4

D ) 9


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