fangdingjun

package main

import (
	"fmt"
	"log"
	"os"
	"strconv"
)

const (

fangdingjun

package main

import (
	"fmt"
)

func main() {
	var N = 12
	for i := 0; i <= N; i++ {
		for j := 0; j <= i; j++ {

fangdingjun

package main

import (
	"fmt"
)

var maze [][]int = [][]int{
	{2, 2, 2, 2, 2, 2, 2, 2, 2, 2},
	{2, 0, 0, 0, 2, 0, 0, 0, 2, 2},
	{2, 0, 2, 0, 2, 0, 2, 2, 0, 2},

fangdingjun

package main

import (
	"fmt"
)

var flags = []int{1,2,3,3,2,1,1,2,3}

func main() {
	var i, j, n int

fangdingjun

package main
import (
    "fmt"
    "os"
    "strconv"
)
var count int
func hanoi(n int, a, b, c string){
    if n == 1{
        count++

fangdingjun

#ifdef WIN32
#include <winsock2.h>
#include <Ws2tcpip.h>
#include <string.h>
#include <stdint.h>
#include <stdio.h>
int inet_pton4(const char *src, char *dst);
int inet_pton6(const char *src, char *dst);

int inet_pton(int af, const char *src, char *dst)

fangdingjun

#限制单个ip的tcp的并发连接数为30
iptables -A INPUT -p tcp -m connlimit --connlimit-above 30 -j DROP

#限制连接web服务的连接速度, 单个ip在10s内只允许建立10个新连接
iptables -A INPUT -p tcp -m multiport --dport 80,443 -m state --state NEW --set --name web
iptables -A INPUT -p tcp -m multiport --dport 80,443 -m state --state NEW --update --name web \
--hitcount 10 --seconds 10 -j REJECT

fangdingjun

from twisted.internet import reactor, protocol 

class EchoClient(protocol.Protocol): 
    def connectionMade(self): 
        reactor.callLater(0, self.send_data, "1111") 

    def send_data(self, data): 
        self.transport.write(data) 
        reactor.callLater(0, self.send_data, "1111") 

fangdingjun

package main

import (
	//"net"
	//"net/http"
	"fmt"
	"log"
	//"os"
	"flag"
	"os/exec"

fangdingjun

#!python

import zipfile
import os


def unzip(filename, output_dir=".", filename_encode="gbk"):
    fp = zipfile.ZipFile(filename, "r")

    # get name list