嵌入式学习笔记19.11.25

c语言结构体

结构体一般定义全局变量

struct stu{//struct 定义结构体  stu 结构体名称

int num;

char name;

int score[3];

}student[5];//student 结构体数组名

#include <stdio.h>

//结构体

struct stu{

int num;//学号

char name[10];//姓名

char s;//性别

int classname;//班级

int score[3];//成绩

}student[10] = {{1,"zhang",'m',1,95,96,97},{2,"wang",'w',1,94,95,98},{3,"li",'w',1,80,97,100}};

int main(){

int i;

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

printf("%d %s %c %d %d %d %d\n",student[i].num,student[i].name,student[i].s, \

student[i].classname,student[i].score[0],student[i].score[1],student[i].score[2]);

}

for(i = 3;i < 4;i++){

//一个汉字在字符串里占两个大小

scanf("%d",&student[i].num);

scanf("%s",student[i].name);

fflush(stdin);//清除缓存，终止字符串录入

scanf("%c",&student[i].s);

scanf("%d",&student[i].classname);

scanf("%d",&student[i].score[0]);

scanf("%d",&student[i].score[1]);

scanf("%d",&student[i].score[2]);

}

for(i = 0;i < 4;i++){

printf("%d %s %c %d %d %d %d\n",student[i].num,student[i].name,student[i].s, \

student[i].classname,student[i].score[0],student[i].score[1],student[i].score[2]);

}

}

结构体可以嵌套：

#include <stdio.h>

struct stu1{

char nun;

int sun;

}student1[3]={

{'a',2},{'b',4},{'c',6}

};

struct stu{

struct stu1 student2;

char sum;

}student[5] ={

{'z',3,'y'},{'r',5,'e'}

};

int main(){

int i;

for(i = 0;i < 2;i++){

printf("%c %d %c\n",student[i].student2.nun,student[i].student2.sun,student[i].sum);

}

}