limingzju

#!/usr/bin/stap
// stap -k -v strace.stp
// https://sourceware.org/systemtap/examples/#process/strace.stp

# suppress some run-time errors here for cleaner output
//bin/true && exec stap --suppress-handler-errors --skip-badvars $0 ${1+"$@"}

/* configuration options; set these with stap -G */
global follow_fork = 0   /* -Gfollow_fork=1 means trace descendant processes too */
global timestamp = 1     /* -Gtimestamp=0 means don't print a syscall timestamp */

limingzju

probe begin 
{
  log("begin to probe")
}

probe syscall.getdents {
/* process id 123 */
if (pid() == 123) {
  file = @cast(task_current(), "task_struct")->files->fdt->fd[$fd]
  if (!file)

limingzju

from selenium import webdriver
from selenium.webdriver.common.keys import Keys

profile = webdriver.FirefoxProfile()
profile.accept_untrusted_certs = True
driver = webdriver.Firefox(firefox_profile=profile)

#driver.get("https://10.240.129.198:8443/")
#elem = driver.find_element_by_id("viewer")
#elem.click()

limingzju

from sympy import *

n, y, u = symbols('n y u')
M = Matrix([[-1*n*y, n*y], [u, -u-(n-1)*y]])
Mt = M.transpose()
X=Matrix([[1,1]])
Y=Matrix([1,0])

m = -X.multiply(Mt.inv()).multiply(Y)

limingzju

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

@RequestMapping(

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

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

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

package main

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

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());
		}