limingzju

# Echo server program
import socket

HOST = ''                 # Symbolic name meaning all available interfaces
PORT = 50007              # Arbitrary non-privileged port
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.bind((HOST, PORT))
s.listen(1)

conn, addr = s.accept()

limingzju

#include <pthread.h>

struct rwlock {
    pthread_mutex_t lock;
    pthread_cond_t read, write;
    unsigned readers, writers, read_waiters, write_waiters;
};

void reader_lock(struct rwlock *self) {
    pthread_mutex_lock(&self->lock);

limingzju

// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package sync

import (
	"sync/atomic"
	"unsafe"
)

limingzju

package hello;

import java.io.File;
import java.io.FileInputStream;
import java.security.KeyStore;
import java.security.cert.Certificate;
import java.security.cert.CertificateFactory;

import javax.net.ssl.SSLContext;

limingzju

import java.net.InetAddress;
import java.net.UnknownHostException;


public class TestNet {
	public static void main(String[] args) throws UnknownHostException {
		InetAddress[] machines = InetAddress.getAllByName("lbs.yxgslb.netease.com");
		for (InetAddress address : machines) {
			System.out.println(address.getHostAddress());
		}

limingzju

package main

import (
    "net"
    "fmt"
    "io"
    "bytes"
    "os"
)

limingzju

import webbrowser
import os

def openWeb(url):
	webbrowser.open_new_tab(url)

def main():
	urls = ['http://www.baidu.com', 'http://www.bing.com', 'http://www.zhihu.com']
	for url in urls:
		option = raw_input('open %s Y/N: ' %url)

limingzju

type CopyCb func(written int64)
func CopyWithCb(dst io.Writer, src io.Reader, cb CopyCb) (written int64, err error) {
        for {
                n, err := io.CopyN(dst, src, KB)
                written += n
                cb(written)
                if err != nil {
                        if err == io.EOF {
                                return written, nil
                        }

limingzju

@RequestMapping(value="/pdfmethod", produces="application/pdf")
public void pdfMethod(HttpServletRequest request, HttpServletResponse response){
    response.setContentType("application/pdf");
    InputStream inputStream = null;
    OutputStream outputStream = null;
    try{
        inputStream = getInputStreamFromYourPdfFile();
        outputStream = response.getOutputStream();
        IOUtils.copy(inputStream, outputStream);
    }catch(IOException ioException){

limingzju

@RequestMapping(
    value = "/{id}.json",
    method = RequestMethod.GET,
    produces = "application/json")
@ResponseBody
public Person getDetailsAsJson(@PathVariable Long id) {
    return personRepo.findOne(id);
}

@RequestMapping(