Ulu2005

# -*- coding: utf-8 -*- 

import os
import wx

from scipy import interpolate
import numpy as np
import matplotlib.pyplot as plt

class MainFrame ( wx.Frame ):

Ulu2005

#Newbie programmer
def factorial(x):
    if x == 0:
        return 1
    else:
        return x * factorial(x - 1)
print factorial(6)


#First year programmer, studied Pascal

Ulu2005

#工程热力学第9章——气体动力循环笔记

这一章主要讲活塞式内燃机和燃气轮机的燃烧循环，通过合理的简化，得到易于分析却又具备参考价值的理想循环。

##核心概念

###性能参数类

• 循环净功 = 吸热量 - 放热量
• 循环热效率 = 净功 / 吸收热 = 1 - （放热量 / 吸热量）
• 相对内效率

Ulu2005

This is a Chinese version of https://gist.github.com/1207002/86f48cd3b3b72c85e6293926cf7c730de03b2f08 from lucasfais

Sublime Text 2 – 实用快捷键 (Mac OS X)

打开/前往

⌘T	前往文件
⌘⌃P	前往项目
⌘R	前往 method
⌘⇧P	命令提示

Ulu2005

Bomb Lab necessities

The bomb lab is most easily completed if you understand the following tools and commands. Also, if I am describing a program, assume that you run it from command line.

Strings

In case you have never used strings before it basically just tells you all the strings in an executable. If I were to run it on the bomb I would simply run

Ulu2005

#include "fssimplewindow.h"
#include <stdio.h>
#include <stdlib.h>

typedef struct cursor *PtrCursor;

struct cursor
{
    int lb, mb, rb, mx, my;
};

Ulu2005

/* 
 * csapp.c - Functions for the CS:APP3e book
 *
 * Updated 10/2014 droh:
 *   - Added safe_printf, anasync-signal-safe wrapper for printf
 *
 * Updated 8/2014 droh: 
 *   - New versions of open_clientfd and open_listenfd are reentrant and
 *     protocol independent.
 *

Ulu2005

Cursor movement

h - move left
j - move down
k - move up
l - move right
w - jump by start of words (punctuation considered words)
W - jump by words (spaces separate words)

e - jump to end of words (punctuation considered words)

Ulu2005

/*
 * csapp.h - prototypes and definitions for the CS:APP3e book
 */
/* $begin csapp.h */
#ifndef __CSAPP_H__
#define __CSAPP_H__

#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>

Ulu2005

/*
* waitfg - Block until process pid is no longer the foreground process
*/
void waitfg(pid_t pid) {
    sigset_t mask, nomask, old;
    struct job_t *j = getjobpid(jobs, pid);
    sigfillset (&mask);
    sigemptyset (&nomask);
    sigprocmask (SIG_SETMASK, &mask, &old);