C语言结构体的简单使用实例

2019-11-08 19:31:06

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代码

#include <stdio.h>#include <stdlib.h>#include <pthread.h>struct s1{ int a ; int b ; int *c;};struct s2{ struct s1 s3; struct s1 *s4;};//struct s1 s={1,2};//子线程传一个结构体struct s2 类型，并处理。void *func(void *arg){ struct s2 *fun1; fun1 = arg; int number = fun1->s4->a; PRintf("number = %d/n",number);//输出a的值}int main(){ //struct s1 b={3,4}; //struct s2 test = {{1,2},&b}; //结构体1赋值 struct s1 b; int k = 7; b.a=3; b.b=4; //b.c = &k; //结构体2赋值 struct s2 test; test.s3.a=1; test.s3.b=2; //s4为指针，需要先声明才可使用 test.s4=(struct s1*)malloc(sizeof(struct s1)); test.s4->a=5; test.s4->b=6; test.s4->c=&k; pthread_t fd; //创建子线程func，将test传入子线程。 pthread_create(&fd,NULL,func,&test); printf("a = %d/n",test.s3.a); printf("b = %d/n",test.s3.b); printf("a = %d/n",test.s4->a); printf("b = %d/n",test.s4->b); printf("c = %d/n",*(test.s4->c)); sleep(2); return 0;}

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