#include<pthread.h>
2 #include<stdio.h>
3
4 struct val{
5 int num1;
6 int num2;
7 };
8
9 //send a int to arg
10 void *text(void *arg)
11 {
12 int *p = (int *)arg;
13 printf("arg is %d\n",*p);
14 pthread_exit(NULL);
15 }
16
17 //send char to arg
18 void *text2(void *arg)
19 {
20 char *d = (char *)arg;
21 printf("arg is %s\n",arg);
22 pthread_exit(NULL);
23 }
24
25 //send a struct to arg
26 void *text3(void *arg)
27 {
28 struct val *v = (struct val *)arg;//传入的结构体指针强制转为实例化结构体*v
29 printf("arg is v.num1:%d,v.num2:%d\n",v->num1,v->num2);
30 pthread_exit(NULL);
31 }
32
33 int main()
34 {
35 pthread_t pth;
36 char val[10] = "i am arg.";
37 int arry = 10;
38 pthread_create(&pth, NULL, text,(void *)&arry);
39 pthread_join(pth, NULL);
40
41 pthread_create(&pth, NULL, text2, (void *)val);
42 pthread_join(pth, NULL);
43
44 struct val v;
45 v.num1 = 0;
46 v.num2 = 1;
47 pthread_create(&pth, NULL, text3, (void *)&v); //一定要用&v因为结构体是值类型;
48 pthread_join(pth, NULL);
49
50 return 0;
51 }