exit code

I. Getting the current time1.1 Creating a Date Object NSDate *date = [NSDate date]; NSLog (@ "%@", date);Output Result:2016-07-01 17:31:02.410 ocstring[907:402963] 2016-07-01 09:31:02 +0000 //Because the time zone is different, you

xcopy--Directory Replication Commands1. Function: Copies all files in the specified directory and directory together with the directory structure.2. Type: External command3. Format: XCOPY [Source disk:]〈 source path name 〉[target drive:] [target

If you do not know the MHA, it is recommended to look at the following links to the corresponding blog post.http://os.51cto.com/art/201307/401702.htm //This blog post sets up the pre-MHA of the construction of the group written very

Chapter III Process Management 3.1 process A process is a program that is in the execution period (the target code is stored on a storage medium). An execution thread, called thread, is an object that is active in a process. Each Chan

Recursion:The concept of recursion is simple, and if the function contains a call to itself, the function is recursive. The definition of a mouthful is that if a new invocation can begin before the end of the earlier call in the same process, then

Transferred from: http://blog.sina.com.cn/s/blog_9564cb6e0101u9lv.html? There are a number of ways to upgrade from sdk3.2.5 to SDK 7.1, and some logic is more rigorous. 1, Warning: "Xoxoxoxo" is the deprecated workaround: Look at Xoxoxoxo's

The linuxexitshell exit code has two functions: 1. exit the current shellsh-exitexitINIT: Enteringrunlevel: 32. directly exit in shellscript, in this way, when writing shellscripts, we can use the specific exit command for linux to learn the exit

Process creation:1#include 2#include 3 4 intMain ()5 {6 //Create open system with Notepad process7Startupinfo SI1 = {sizeof(SI1)};8 process_information pi1;9 Char* SzCmdLine1 ="Notepad";Ten if(:: CreateProcess (NULL, SZCMDLINE1, NULL,

Yi, Isinstance (obj,cls)To check if obj is a CLS objectWhen the program relies on user input, that is, the user input content to categorize the operation of the use of isinstance>>> n1=10>>> n2=9>>> print isinstance (n1,int)True>>> print isinstance (

The list of Web application skeletons automatically generated by the YII framework contains a footstep file, Yiic and Yiic.bat. YIIC is used by the Unix/linux platform, and Yiic.bat is used by Windows platforms. If you want to view the script's help

This is a bug that occurs during real machine debugging. After a lot of effort, the bug is finally eliminated. In this process, I am very grateful to my iPhone Development Group's brothers, Beijing _, Beijing _ Changkong, Oran, and Suzhou-old cat

http://lavasoft.blog.51cto.com/62575/184492/*************************************************Java.util.logging.Logger Use of the detailedJava.util.logging.Logger is not something new, 1.4 has, but because of the existence of log4j, this logger has

ligatures Two days blog is really!!! Stupid human beings.1. Double layer (multilayer) decorator: The adorner is to decorate the original function as another function, since it became a function, of course, can be decorated again, understand this

The concept of Python's decorator has been a bit tricky. I have seen a very clear description of the feeling in StackOverflow before:*a Decorator must accept A function as an argument reference address: http://stackoverflow.com/questions/739654/ how-

node. JS Multi-processWe all know that node. JS runs in single-threaded mode, but it uses event-driven to handle concurrency, which helps us to create multiple sub-processes on a multi-core CPU system to improve performance.Each child process always

Python day3, day3 1. Copy numeric values Import copy####### Numbers and strings ######N1 = 123Print (id (n1 ))N2 = n1Print (id (n2 ))### Shallow copy ###N2 = copy. copy (n1)Print (id (n2 ))### Deep copy ###N3 = copy. deepcopy (n1)Print (id (n3 )) C:

Pack and UnpackFor a function, the pack function is appropriate if you want to convert its arguments into a table. For a table to be converted to the parameter of a function, the unpack function provided by LUA native can be implemented.

I. Working Principle of DrbdDRBD is a block device that can be used in HA. it is similar to a network RAID-1 function. (compare NFS in Linux) when you write data to a local file system, the data will be sent to another host on the network. record in

In the process of learning the basic Python tutorial, we will generally deal with the basics of strings, lists, tuples, dictionaries and so on, and then we'll take a look at the examples of strings, lists, tuples, and dictionaries as Follows:one,

To get the Python program to implement multi-process (multiprocessing), we first understand the operating system knowledge.The Unix/linux operating system provides a fork() system call, which is very special. A normal function call, called once, is