出现错误: You’re seeing this error because you have DEBUG True in your Django settings file. Change that to False, and Django will display a standard 404 page.
在urls中,注释了系统的默认配置,这时就需要在setting配置文件中&…
select实现tcp并发服务器(还没有实现完成) 20 #include <sys/un.h>21 #define PORT 888822 #define IP "192.168.126.52"23 int main(int argc, const char *argv[])24 {25 //1:获取网络通信端点26 int sfdsocket(AF_INET,SOCK_…
题目 题目链接: https://www.nowcoder.com/practice/e280b9b5aabd42c9b36831e522485622
思路 图,队列
构件图,直接从target出发,扩展到第k层就是答案Java代码
import java.util.*;/** public class TreeNode {* int val 0;* …