Description: Setup GitHub Pages "gh-pages" branch and "master" branch as subfolders of a parent project folder ("grandmaster").
Author: Chris Jacob @_chrisjacob
Tutorial (Gist): https://gist.github.com/833223
Description: Setup GitHub Pages "gh-pages" branch and "master" branch as subfolders of a parent project folder ("grandmaster").
Author: Chris Jacob @_chrisjacob
Tutorial (Gist): https://gist.github.com/833223
#!/usr/bin/env bash | |
# | |
# Get the value of a tag for a running EC2 instance. | |
# | |
# This can be useful within bootstrapping scripts ("user-data"). | |
# | |
# Note the EC3 instance needs to have an IAM role that lets it read tags. The policy | |
# JSON for this looks like: | |
# | |
# { |
NOTE: Last update to this gist was on Jun 2, 2018. Most of the things here are out of date (e.g consider using zstd for transparent compression instead of lzo), so do your own research as well. Take care!
Python Cheatsheet | |
================= | |
################################ Input & Output ############################### | |
name = input('please enter your name: ') | |
print('hello,', name) | |
ageStr = input('please enter your age: ') | |
age = int(ageStr) | |
#!/bin/bash | |
# function Extract for common file formats | |
function extract { | |
if [ -z "$1" ]; then | |
# display usage if no parameters given | |
echo "Usage: extract <path/file_name>.<zip|rar|bz2|gz|tar|tbz2|tgz|Z|7z|xz|ex|tar.bz2|tar.gz|tar.xz>" | |
else | |
if [ -f "$1" ] ; then | |
NAME=${1%.*} |
package main | |
// #include <linux/kvm.h> | |
// #include <stdio.h> | |
// #include <err.h> | |
// | |
// static int myhandler(void* r) { | |
// struct kvm_run* run = (struct kvm_run*) r; | |
// switch (run->exit_reason) { | |
// case KVM_EXIT_HLT: |
Go 泛型的草案截止今日已经基本定型了,与其他语言最大的不同应该就是 Go 的泛型利用 Interface 做 Constraint,可以说是与现有的 Interface 充分结合,之前的草案本来要引入新的关键字 contracts 在这次改动后被现有的 interface 代替,这使得 Interface 的概念更像 Rust 的 trait(实际上 Go 的泛型概念也与 Rust 相似),不过 Go 中实现 Interface 不需要显示声明,所以我想先谈一下 Interface 这个 Go 语言中最出色的“发明”。
Interface 实现了 Go 风格的 Duck typing
。它实现的方法查表方式与其他语言有些不同,有方法的语言大概有两个阵营