dbbbit

fn main() {
    let mut a = String::from("hello");
    {
        let b = &mut a;
        &&&&&&&&&&&&&&&&&&&&&&&b.push('b');
    }
    a.push('a');
    println!("{}", a);
}

dbbbit

class Field(object):

    def __init__(self, value=None):
        self.value = value

    def __get__(self, instance, owner):
        print("getting")
        return self.value

    def __set__(self, instance, value):

dbbbit

Rust

• 静态强类型
• 应用场景

Overview

• A brief introduction to Rust
• Hello World
• 并发的 Hello World

Thread-safety

dbbbit

from heimdall_client import X

X.setRule('''<?xml version="1.0"?><data><production><lhs><has identifier="spu:1" attribute="quantity" value="$quantity"/></lhs><rhs kind="quota:order:spu" quota="1" spu_id="1"/></production></data>''')
X.getRule()

dbbbit

package main

import (
	"fmt"
	"runtime/debug"
)

func f() (ret interface{}, err error){
	var x interface{}
	defer func() {

dbbbit

数据

• 歌单：http://pastebin.dapps.douban.com/show/115076/
• 歌词: https://github.intra.douban.com/yangcheng/market_alg/blob/dev/analysis/lyric/lyric.txt
• 来源：fm 红心（最近一千万标记，流派为民谣，中文有歌词，按红心数排序取前 100）

关键词提取

• jieba 分词
• 自定义停用词
• 词性过滤 ('v', 'n', 'ns', 'vn') https://gist.github.com/luw2007/6016931

dbbbit

dbbbit@ubuntu:~/red/linux-2.6.39$ ../lk-tester-maker/debug2_6.sh
rm: cannot remove 'arch/x86/boot/initrd.img-2.6.39': No such file or directory
[sudo] password for dbbbit:
W: plymouth: The plugin label.so is missing, the selected theme might not work as expected.
W: plymouth: You might want to install the plymouth-themes and plymouth-label package to fix this.
W: mdadm: /etc/mdadm/mdadm.conf defines no arrays.
warning: TCG doesn't support requested feature: CPUID.01H:ECX.vmx [bit 5]
[    0.000000] Initializing cgroup subsys cpuset
[    0.000000] Initializing cgroup subsys cpu
[    0.000000] Linux version 2.6.39 (dbbbit@ubuntu) (gcc version 4.9.3 (Ubuntu 4.9.3-13ubuntu2) ) #7 SMP Mon Sep 18 23:08:53 CST 2017