C语言中如何在结构体内定义函数
如何在结构体内定义函数
结构体中引入函数
#include <stdio.h>
struct student {
char *name;
int age;
void (*printInfo)(struct student *stu);
};
void printInfo(struct student *stu)
{
printf("name = %s, age = %d", stu->name, stu->age);
}
int main(int arGC, char**argv)
{
struct student students[] = {
{"zhangsan", 10, printInfo},
{"lisi", 26, printInfo},
};
students[0].printInfo(&students[0]);
students[1].printInfo(&students[1]);
}
C++中结构体引入
#include <stdio.h>
struct student {
char *name;
int age;
void printInfo(void)
{
printf("name = %s, age = %d\n", name, age);
}
};
int main(int argc, char**argv)
{
struct student students[] = {
{"zhangsan", 10},
{"lisi", 26},
};
students[0].printInfo();
students[1].printInfo();
}
C++中类引入
#include <stdio.h>
class student {
public:
char *name;
int age;
void printInfo(void)
{
printf("name = %s, age = %d\n", name, age);
}
};
int main(int argc, char**argv)
{
struct student students[] = {
{"zhangsan", 10},
{"lisi", 26},
};
students[0].printInfo();
students[1].printInfo();
}
结构体成员有函数的定义与使用
```c
#include <stdio.h>
typedef int (*FunHandle)(int, int); //定义 指向函数的指针
struct Example
{
int a;
int b;
FunHandle fun; //函数作为结构体成员
};
int add(int, int);
int main()
{
struct Example ex;
int r;
ex.a = 1;
ex.b = 2;
ex.fun = add;
r = ex.fun(ex.a, ex.b); //结构体中函数的 使用
printf("%d + %d = %d \n", ex.a, ex.b, r);
return 0;
}
int add(int a, int b)
{
return a+b;
总结
以上为个人经验,希望能给大家一个参考,也希望大家多多支持。
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