[转](阿里笔试）使用多线程和sleep函数生成字符串的伪随机排列

2024-08-23 02:33:14

http://blog.csdn.net/jiaowopan/article/details/12009079

C/C++（Linux平台）

注意编译连接时需要链接pthread库，即g++ XX.cpp -o XX -lpthread

#include <stdio.h>
#include <unistd.h>
#include <pthread.h>
void* thread(void* v)
{
char ch = *(char*)v;
sleep(1);
putchar(ch);
}
int main()
{
pthread_t id[7];
int i ,ret;
char str[] = "abcdefg";
for(i = 0; i < 7; ++i)
{
ret = pthread_create(&id[i],NULL,thread,&str[i]);
if(0 != ret)
{
printf("create pthread error\n");
i--;
}
}
for(i = 0; i < 7; ++i)
pthread_join(id[i],NULL);
printf("\n");
return 0;
}

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