TomShine shangzongyu

JNI (Java Native Interface) allows implementing methods in C/C++, and use them in Java.

0. Prepare

I use hombrew install java, java version is java 10.

$ java --version
java 10.0.2 2018-07-17

DB

ovs-vsctl list interface
ovs-vsctl --columns=ofport,name list Interface
ovs-vsctl --columns=ofport,name --format=table list Interface
ovs-vsctl --format=table --columns=name,mac_in_use find Interface name=br-dpdk1
ovs-vsctl get interface vhub656c3cb-23 name

ovs-vsctl set port vlan1729 tag=1729
ovs-vsctl get port vlan1729 tag

emacs --daemon to run in the background. emacsclient.emacs24 <filename/dirname> to open in terminal

NOTE: "M-m and SPC can be used interchangeably".

Undo - C-/
Redo - C-?
Change case: 1. Camel Case : M-c 2. Upper Case : M-u

Lower Case : M-l

	from base64 import urlsafe_b64encode, urlsafe_b64decode
	from Crypto.Cipher import AES
	from Crypto import Random


	BS = 16
	pad = lambda s: s + (BS - len(s) % BS) * chr(BS - len(s) % BS)
	unpad = lambda s: s[:-ord(s[len(s) - 1:])]

	base64pad = lambda s: s + '=' * (4 - len(s) % 4)

	package main

	import (
	"crypto/aes"
	"crypto/cipher"
	"crypto/rand"
	"encoding/base64"
	"errors"
	"io"
	"log"

	package main

	import (
	"fmt"
	"os"
	"os/signal"
	"syscall"
	)

	func main() {

	// getMacAddr gets the MAC hardware
	// address of the host machine
	func getMacAddr() (addr string) {
	interfaces, err := net.Interfaces()
	if err == nil {
	for _, i := range interfaces {
	if i.Flags&net.FlagUp != 0 && bytes.Compare(i.HardwareAddr, nil) != 0 {
	// Don't use random as we have a real address
	addr = i.HardwareAddr.String()
	break

	package main

	import (
	"dxmall/models/user"
	"dxmall/utils"

	"fmt"
	"net/http"
	"strings"

	package user

	import (
	"fmt"
	"regexp"
	"strconv"
	"time"

	"dxmall/utils"

	import time
	from datetime import datetime, date

	# 今天
	datetime.datetime.today().date().isoformat()

	# 通过日期对象生成时间戳
	int(time.mktime(datetime.now().timetuple()))

	# 通过时间戳生成日期对象，timestamp 的时间戳以秒为单位