根据下面的定义,能输出字母R的语句是【】。struct person{char name[9];int age;}class[10]={"John",17,"Mary",19,"Rose",18,"Peter",16};
A. printf("%c\n",class[3].name);
B. printf("%c\n",class[3].name[1]);
C. printf("%c\n",class[2].name[0]);
D. printf("%c\n",class[2].name[1]);
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若有以下定义,能正确引用weight成员值为55的是【】。struct Person{char name;int weight;}a[3]={{'Z',59},{'W',56},{'L',55}};
A. a[2].weight
B. weight
C. a.weight[2]
D. a.weight
以下程序段执行后,输出结果为【】。struct data{int x;int y;}data[2]={1,3,2,7};printf("%d\n",data[0].y/data[0].x*data[1].x);
A. 0
B. 1
C. 3
D. 6
设有以下语句:struct people{char name[20];int age;int sex;}pup[5],*p=pup;则下列scanf语句不正确的是【】。
A. scanf("%s",pup[0].name);
B. scanf("%d",p->age);
C. scanf("%d",&( p->sex));
D. scanf("%d",&pup[0].age);
以下对结构体类型变量stu1中成员age引用非法的是【 】。struct student{int age;int num;}stu1,*p=&stu1;
A. student.age
B. stu1.age
C. (*p).age
D. p->age