举一反三
- 以下程序的运行结果是（ ） #include struct s { int num; char name[20]; int age; }; fun(struct s *p) { printf("%s ",(*p).name); } void main( ) { struct s stud[3]={{101,"Li",18},{102,"Wang",19},{103,"Zhang",21}}; fun(stud+2); } A: Li B: Wang C: Zhang D: 不确定的值
- 以下结构体的定义语句中，正确的是______。? struct student {int num; char name[10];int age;}stu;|struct {int num; char name[10];int age;}student; struct student stu;|struct student {int num; char name[10]; int age;}; student stu;|struct student {int num; char name[10];int age;};stu;
- 有以下程序段，输出结果为（）。 #include<stdio.h> struct student {int num; char name[20]; float score; }; main() {struct student stu[5]; printf("%d",sizeof(stu)); }
- 下列程序的输出结果第一行是_____,第二行是_______。 #include [iostream] #include [cstring] #include [iomanip] using namespace std; struct student { int num; char name[20]; double score; }; void fun(struct student *s); int main() { struct student stu={12345, "Zhangwei", 98.0}; cout[<stu.num<<","<<stu.name<<","<<stu.score<<endl; fun(&stu); cout<<stu.num<<","<<stu.name<<","<<stu.score<<endl; return 0; } void fun(struct student *s) { s-]num=23456; strcpy(s->name, "Liming"); s->score=88; }
- 对结构体类型变量定义不正确的是（ ）。 A: B: define STUDENT struct studentSTUDENT{char name;int num;}std; C: struct student{char name;int num;}stu; D: E: define struct student{char name;int num;}STD;STD stu; F: struct{char name;int num;}student;struct student stu;
内容
- 0
以下程序执行后的输出结果是#include struct STU{ char name[10]; int num;};void Fun1(struct STU c){ struct STU b={LiGuo,2042}; c=b;};int main(){ struct STU a={YangHan,2041},b={WangYi,2043}; Fun1(a); printf(%d %d ,a.num,b.num); return 0;}
- 1
分析下面的程序，下列说法中错误的是 ________ 。 #define NULL 0 #include "conio.h" struct stu { long num; char name[20]; int score; struct stu * next; }; int main() { struct stu *head,*p,*pa,*pb,*pc; pa=(struct stu *)malloc(sizeof(struct stu)); pb=(struct stu *)malloc(sizeof(struct stu)); pc=(struct stu *)malloc(sizeof(struct stu)); scanf("%ld%s%d",&pa->num,pa->name,&pa->score); scanf("%ld%s%d",&pb->num,pb->name,&pb->score); scanf("%ld%s%d",&pc->num,pc->name,&pc->score); head=pa; pa->next=pb; pb->next=pc; pc->next=NULL; p=head; while(p!=NULL) { printf("%ld,%s,%d\n",p->num,p->name,p->score); p=p->next; } }
- 2
对以下定义，能输出字符串"Mary"的语句是（ ）。struct student { char name[20]; int age; }; struct student stu[100]={"John",16,"Paul",17,"Mary",18 }; A: printf("%s",stu[2].name); B: printf("%s",stu[1].name); C: printf("%s",stu[2]); D: printf("%s",stu[1]);
- 3
中国大学MOOC: 写出下面程序执行后的运行结果。#include <stdio.h>struct STU {char name[10]; int num;};void f1(struct STU c){struct STU b={"LiSiGuo",2042};c=b;}void f2(struct STU *c){struct STU b={"SunDan",2044};*c=b;}int main( ){struct STU a={"YangSan",2041},b={"WangYin",2043};f1(a); f2(&b) ;printf("%d %d",a.num,b.num); return 0;}
- 4
编写input()函数输入5个学生的数据记录。（用结构体设计，学生记录中包括学号、姓名、四门课程成绩）.【1】、【2】分别填写的是( )。 #include#define N 5 struct student { char num[6]; char name[8]; int score[4]; } stu[N]; void input(struct student stu[]); void print(struct student stu[]); main() { input(stu); } void input(struct student stu[]) { int i,j; for(i=0;i A: stu[i].num B: stu[i+1].num C: stu[i].name D: stu[j].name