使用 Python 内置的 defaultdict
,我们可以很容易的定义一个树形数据结构:
def tree(): return defaultdict(tree)
就是这样!
$ sudo dmidecode | |
# dmidecode 2.12 | |
# SMBIOS entry point at 0x000f0000 | |
SMBIOS 2.8 present. | |
<SNIP> | |
Handle 0x0000, DMI type 0, 24 bytes | |
BIOS Information |
使用 Python 内置的 defaultdict
,我们可以很容易的定义一个树形数据结构:
def tree(): return defaultdict(tree)
就是这样!
function smoothScroll(el, to, duration) { | |
if (duration < 0) { | |
return; | |
} | |
var difference = to - $(window).scrollTop(); | |
var perTick = difference / duration * 10; | |
this.scrollToTimerCache = setTimeout(function() { | |
if (!isNaN(parseInt(perTick, 10))) { | |
window.scrollTo(0, $(window).scrollTop() + perTick); | |
smoothScroll(el, to, duration - 10); |
Python Cheatsheet | |
================= | |
################################ Input & Output ############################### | |
name = input('please enter your name: ') | |
print('hello,', name) | |
ageStr = input('please enter your age: ') | |
age = int(ageStr) | |
import jinja2 | |
from flask import Flask, render_template, request, redirect, url_for | |
from flask.ext.sqlalchemy import SQLAlchemy | |
from . import formatting | |
from .config import get_config | |
db = SQLAlchemy() |
# add to .bashrc | |
# source .bashrc | |
if [ "$TERM" == "xterm" ]; then | |
export TERM=xterm-256color | |
fi |
# add to .bashrc | |
# source .bashrc | |
if [ "$TERM" == "xterm" ]; then | |
export TERM=xterm-256color | |
fi |
<template> | |
<div class="hello"> | |
<div><p>Hello Components</p></div> | |
<div> | |
{{count}} | |
</div> | |
<div> | |
<button @click="increment">Inc</button> | |
<button @click="decrement">Dec</button> | |
</div> |
worker_processes 1; | |
user mark24 mark24; # <-- | |
# 'user nobody nobody;' for systems with 'nobody' as a group instead | |
pid /tmp/nginx.pid; | |
error_log /tmp/nginx.error.log; | |
events { | |
worker_connections 1024; # increase if you have lots of clients | |
accept_mutex off; # set to 'on' if nginx worker_processes > 1 |