- 中国电信 100M 宽带接入,局域网段
192.168.1/24
,光猫拥有管理员权限(后继需要); - NetGear WNDR3700v2 跑 OpenWRT 作为家庭主路由器, WAN IP
192.168.1.234
,局域网段10.10.10/24
; - PS4 无线连家庭网络(主),IP
10.10.10.3
;有线连光猫(备),IP192.168.1.3
。
/* Merge sort in C */ | |
#include<stdio.h> | |
#include<stdlib.h> | |
// Function to Merge Arrays L and R into A. | |
// lefCount = number of elements in L | |
// rightCount = number of elements in R. | |
void Merge(int *A,int *L,int leftCount,int *R,int rightCount) { | |
int i,j,k; |
1. Open Terminal | |
2. cd to your Xcode project | |
3. Execute the following when inside your target project: | |
find . -name "*.swift" -print0 | xargs -0 wc -l |
First install pip for Python2. Download the get-pip.py file from https://bootstrap.pypa.io/get-pip.py | |
$ cd <download location> | |
$ sudo -H python ./get-pip.py | |
Installing pip also installs Python3 | |
To run Python3 | |
$ python3 | |
Install pip3 by just executing the same file as in the step above, but this time using Python3 | |
$ sudo -H python3 ./get-pip.py |
NSTimeZone - Timezone Abbreviations ADT = "America/Halifax"; AKDT = "America/Juneau"; AKST = "America/Juneau"; ART = "America/Argentina/Buenos_Aires"; AST = "America/Halifax"; BDT = "Asia/Dhaka"; BRST = "America/Sao_Paulo"; BRT = "America/Sao_Paulo"; BST = "Europe/London";
For a brief user-level introduction to CMake, watch C++ Weekly, Episode 78, Intro to CMake by Jason Turner. LLVM’s CMake Primer provides a good high-level introduction to the CMake syntax. Go read it now.
After that, watch Mathieu Ropert’s CppCon 2017 talk Using Modern CMake Patterns to Enforce a Good Modular Design (slides). It provides a thorough explanation of what modern CMake is and why it is so much better than “old school” CMake. The modular design ideas in this talk are based on the book [Large-Scale C++ Software Design](https://www.amazon.de/Large-Scale-Soft
The libdispatch is one of the most misused API due to the way it was presented to us when it was introduced and for many years after that, and due to the confusing documentation and API. This page is a compilation of important things to know if you're going to use this library. Many references are available at the end of this document pointing to comments from Apple's very own libdispatch maintainer (Pierre Habouzit).
My take-aways are:
-
You should create very few, long-lived, well-defined queues. These queues should be seen as execution contexts in your program (gui, background work, ...) that benefit from executing in parallel. An important thing to note is that if these queues are all active at once, you will get as many threads running. In most apps, you probably do not need to create more than 3 or 4 queues.
-
Go serial first, and as you find performance bottle necks, measure why, and if concurrency helps, apply with care, always validating under system pressure. Reuse
/// Log the current filename and function, with an optional extra message. Call this with no arguments to simply print the current file and function. Log messages will include an Emoji selected from a list in the function, based on the hash of the filename, to make it easier to see which file a message comes from. | |
/// - Parameter message: Optional message to include | |
/// - file: Don't use; Swift will fill in the file name | |
/// - function: Don't use, Swift will fill in the function name | |
/// - line: Don't use, Swift will fill in the line number | |
func logMilestone(_ message: String? = nil, file: String = #file, function: String = #function, line: Int = #line) -> Void { | |
#if DEBUG | |
// Feel free to change the list of Emojis, but don't make it shorter, because a longer list is better. | |
let logEmojis = ["😀","😎","😱","😈","👺","👽","👾","🤖","🎃","👍","👁","🧠","🎒","🧤","🐶","🐱","🐭","🐹","🦊","🐻","🐨","🐵","🦄","🦋","🌈","🔥","💥","⭐️","🍉","🥝","🌽","🍔","🍿","🎹","🎁","❤️","🧡","💛","💚","💙","💜","🔔"] | |
let logEmoji = logEmojis[abs( |
// | |
// JonnyKeyValueObserver.swift | |
// | |
// Copyright (c) 2020 Junyu Kuang <lightscreen.app@gmail.com> | |
// | |
// Permission is hereby granted, free of charge, to any person obtaining a copy | |
// of this software and associated documentation files (the "Software"), to deal | |
// in the Software without restriction, including without limitation the rights | |
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
// copies of the Software, and to permit persons to whom the Software is |
const functions = require('firebase-functions'); | |
const TelegramBot = require('node-telegram-bot-api'); | |
const token = "***" | |
const chatID = 1024 // your telegram id, you must first send a message to your bot | |
exports.notifyIAP = functions.analytics.event('in_app_purchase').onLog((event) => { | |
const purchaseValue = event.valueInUSD; | |
if (purchaseValue > 0) { | |
const bot = new TelegramBot(token, {polling: false}); |