Sub nbtstat(ByVal ip As String) Dim strRst, strRst1, strRst2, strRst3 As String Dim n1, n2, n3 As Integer Try Dim p As New Process() '用Process就可以 p.StartInfo.FileName = "cmd.exe" p.StartInfo.UseShellExecute = False p.StartInfo.RedirectStandardIn
1.DNS (Domain Name Service 域名解析) DNS是因特网上作为域名和IP地址相互映射的一个分布式数据库,能够使用户更方便的访问互联网而不需要记忆能够直接被机器识别的IP. BIND: Berkeley Internet Name Domain -->实现 监听端口: UDP:53 TCP:53 DNS默认是工作在UDP下,因为UDP快.一旦网络出现问题,才用TCP. TCP传输:建立连接需要三次握手,四次断开.需要一定的网络代价.传文件用 UDP: 直接的传输,会丢
Building Block Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 5341 Accepted Submission(s): 1638 Problem Description John are playing with blocks. There are N blocks (1 <= N <= 30000) number
How Many Answers Are Wrong Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 6336 Accepted Submission(s): 2391 Problem Description TT and FF are ... friends. Uh... very very good friends -_____
How Many Answers Are Wrong Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 6349 Accepted Submission(s): 2395 Problem Description TT and FF are ... friends. Uh... very very good friends -_____