若有下面的说明和定义,则sizeof(struct aa)的值是______。 struct aa { int r1;double r2;float r3; union uu{char ul[5]long u2[2]}ua; }mya;
A.30
B.29
C.24
D.22
A.30
B.29
C.24
D.22
A、typedef struct abc{ int n;double m; }ABC; ABC x,y;
B、struct abc{ int n;double m }; struct abc x, y;
C、struct ABC{ int n;double m; } struct ABC x, y;
D、struct abc{ int n;double m; }; abc x, y;
#include
#include
struct A
{ int a; char b[10]; double c;};
void f (struct A t ) ;
main ()
{ struct A a={1001, " ZhangDa " ,1098.0};
f (a ) ; printf (" %d,%s,%6.1f\n " ,a.a,a.b,a.c ) ;
}
void f (struct A t )
{ t.a=1002; strcpy (t.b, " ChangRong " ) ;t.c=1202.0;}
程序运行后的输出结果是
A ) 1001,zhangDa,1098.0
B ) 1002,changRong,1202.0
C ) 1001,ehangRong,1098.O
D ) 1002,ZhangDa,1202.0
A.int a[][3];
B.int a[][3]={2*3};
C.int a[][3]={};
D.int a[2][3]={{1), {2}, {3,4}};
main()
{int i=1,j=2,k=3;
if(i++==1&&(++j=3‖k++==3))printf("%d%d%d\n",i,j,k);
}
A.1 2 3
B.2 3 4
C.2 2 3
D.2 3 3
A.10,01
B.02,12
C.102,10
D.02,10
inClude<coMo.h>
inClude<stdio.h>
dehne M 5
/************fOUnd************/
int fun(int n,int xx[][])
{int i,j,sum=0;
printf("\n The%dx%d matrix:\n"M,M);
for(i=0;i<M;i++)
{ for(j=0;j<M;j++)
/************found************/
printf("%f",xx[i][j]);
printf("\n");
}
for(i=0;i<n;i++)
sum+=xx[i][i]+XX[i][[n-i-1];
return(sum);
}
main( )
{int aa[M][M]={{1,2,3,4,5),{4,3,2,1,0),
{6,7,8,9,0},{9,8,7,6,5},{3,4,5,6,7}};
clrscr( );
printf("\n The sum Of all elements On 2 diagnals is %d."fun(M,aa));
}
A.9,9
B.8,9
C.1,8
D.9,8
A.a[0][4]
B.a[1][3]
C.a[0][3]
D.a[1][4]
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