liweinan

#include<iostream>

using namespace std;

struct node {
    int data;
    node *next;
};

int main() {

liweinan

<div id="el"></div>

<!-- using string template here to work around HTML <option> placement restriction -->
<script type="text/x-template" id="demo-template">
  <div>
    <p>Selected: {{ selected }}</p>
    <select2 :options="options" v-model="selected">
      <option disabled value="0">Select one</option>
    </select2>
  </div>

liweinan

macro_rules! A {
    (1+ $input:expr) => {
        $input + 1
    };
    (2+ $input:expr) => {
        $input + 2
    };
}

fn main() {

liweinan

set nocompatible              " be iMproved, required
filetype off                  " required
syntax on
let g:python3_host_prog = '/Users/weli/.pyenv/versions/3.8.5/bin/python'
let g:python_host_prog = '/Users/weli/.pyenv/versions/2.7.18/bin/python'
nmap <C-n> :NERDTreeToggle<CR>


" Specify a directory for plugins
" - For Neovim: stdpath('data') . '/plugged'

liweinan

JS Snippets

liweinan

struct Foo {
    x: i32,
    s: String,
    opt: Option<i32>,
}

struct Bar(i32, i32);

fn play_with_struct() -> Foo {
    let d = Foo {

liweinan

type Callback = fn();

struct Processor {
    callback: Callback,
}

impl Processor {
    fn process_event(&self) {
        (self.callback)();
    }

liweinan

Fedora BCC Example

liweinan

The root cause is because JSONB can't unmarshall an interface.

liweinan

// 关于by value和by reference
fn main() {
    let x = String::from("hi");
    let y = &x;

    println!("{}", y);

    let z = {
        let _z = String::from("42");
        _z