In Linux, shell variables $ #, $ @, $0, $1, $2 are interpreted as follows:
Variable description:
$ PID (ProcessID) of Shell itself $! PID of the background Process last run by Shell $? End code of the last command (Return Value) $-Flag list Set using the Set command $ * List of all parameters. For example, when "$ *" is included in... $ N "to output all parameters. $ @ List of all parameters. For example, w
From: http://bbc.com
AC Milan 0-2 arsenal (Bytes 0-2)By Phil McNulty
Fabregas scored Arsenal's first goal against MilanArsenal struck twice late on to become the first English team to beat AC Milan in the San Siro and deservedly reach the last eight of the Champions League.
Arsene Wenger's side produced a too Oso
Error:1>vtkcommon.lib (vtkdebugleaksmanager.obj): Error LNK2038: "_iterator_debug_level" mismatch detected: value "0" does not match value "2" ( cloudviewer.obj) error reason :Debug uses the release library file.even if you add two in the library, but the release library file is placed in front of debug, also error, by default in order to use the library file. Similar error : Release under the use of DEBUG
Variable Description: $$the PID of the shell itself (ProcessID) $!PID of the Shell's last running background process $?end code of the last Run command (return value) $-flag at a glance using the SET command $*all parameter lists.such as "$*" in the Case of "" ", in the form of" $ $ ... $n "output all parameters. [email protected]all parameter lists. such as "[email protected]" with "" "in the case, with" $ "" $ "...All parameters are output in the form "$n". $#number of arguments added to the
Netease sports news in England on March 29, Beijing time in the early morning, the Champions League 1/4 finals began the first round of competition. Arsenal beat Juventus 2 to 0 at home.
Both Fabregas and Henry beat each other and helped each other. A yellow card will be given to viveri, who will return to haibury, and will miss the second round. At the last moment of the game, cammoraneisi and zebian were
There are three standard input and output in Linux, namely Stdin,stdout,stderr, the corresponding number is 0,1,2.STDIN is the standard input, read the information by default from the keyboard, stdout is the standard output, by default output output to the terminal, that is, the display and so on, stderr is a standard error message, the default will be displayed on the terminal. Since stdout and stderr are displayed by default on the terminal, in order to distinguish between the information, the
Parameter description1:$# indicates the number of arguments passed into the script2:$* indicates the execution of a script passed in the parameter list3:$$ represents the Process ID4:[email protected] means that the execution script passes all parameters5:$0 represents the execution script name6:$1 represents the first parameter7:$2 represents the second argument8:$? Indicates script execution status
' (length=45) requireBASEDIR. ' /‘.Str_replace(‘\\‘, ‘/‘,$class).‘. Php; }}common/object.php:phpnamespace Common; class Object { staticfunction Test () { echo__method__, ' ; }} // there must be no executable statement other than the object classapp/controller/home/index.php:phpnamespace app\controller\home; class index{ staticfunction Test () { echo__method__, ' ; }}When you run the Portal file index.php, app/controller/home/index.php and common/object
Theremainderfunctionand % operator. the following code cannot be compiled (gcc) # compile destdio. h # includefenv. hintmain () {doublex10; printf (x % 2% lfn, x % 2.0); return0;} operator % can only operate on Integer Data (guess, % is implemented based on the data bit shift ). this
The remainder function and % operator. the following code cannot be compiled (gcc) # include stdio. h # include fenv. hint main () {double x = 10; printf (x %
When importing open source projects, you always report this mistake.Error: (2, 0) Plugin with id ' com.github.dcendents.android-maven ' not foundWorkaround:First add global dependencies to the Build.grade under projectBuildscript { repositories { jcenter () } dependencies { ' Com.android.tools.build:gradle : 1.5.0 ' //1. Automated Maven Packaging plugin ' com.github
When building the SAE Python environment locally, the following error is always reported:1F:\workspace\dev\python\frikyskice\1>dev_server.py2 Traceback (most recent):3File"C:\Python27\Scripts\dev_server.py", line 205,inch4 Main (options)5File"C:\Python27\Scripts\dev_server.py", line 165,inchMain6Options.__dict__. Update (CONF)7Valueerror:dictionary Update Sequence Element#0 have length 1; 2 is requiredLooki
Tensorboard
Tensorboard's official website tutorials are as follows:Https://www.tensorflow.org/versions/r0.7/how_tos/summaries_and_tensorboard/index.html
A simple explanation: Tensorboard is a visual tool that can be used to view TensorFlow diagrams and various values and images in the process.1. Add "Summary operations" to the desired node in the TensorFlow program, and "Summary operations" collects the node's data and marks the previous step, timestamp, and other identifiers to write to the e
s[0]*31^ (n-1) + s[1]*31^ (n-2) + ... + s[n-1] hash with this algorithm
s[0]*31^ (n-1) + s[1]*31^ (n-2) + ... + s[n-1] hash with this algorithm
What do you think?
How to detect conflicts?
When I'm a fixed-length string, say 10 characters,
What is the conflict situation?
It is said that this algorithm is in Ja
Java.lang.IllegalStateException:Couldn ' t read row 0, col 2 from Cursorwindow. Make sure the Cursor was initialized correctly before accessing data from it.Hint that the corresponding key field is not found, and that the field of the database is write-aligned and is case-sensitiveThis article is from the "Qing gan tea" blog, please be sure to keep this source http://shunshuncon.blog.51cto.com/8232441/16401
let's start by writing a simple script that will explain the meaning of each variable after execution .# Touch Variable# VI VariableThe script reads as follows:#!/bin/shecho "number:$#"echo "Scname:$0"echo "First: $ $"echo "Second:$2"echo "Argume:[email protected]"echo "Show Parm list:$*"echo "Show Process id:$$"echo "Show Precomm stat: $?"Save Exitassigning script Execution Permissions# chmod +x variableEx
.
Input
* Line 1: two space-separated integers:NAndB* Lines 2 ..N+ 1: LineI+ 1 contains a single INTEGER:Hi
Output
* Line 1: A single integer representing the (non-negative) Difference between the total height of the optimal set of cows and the height of the shelf.
Sample Input
5 1631356
Sample output
1
SourceUsaco 2007 December Bronze
Question
The shelf height is B, and the nheaded dairy cows are stacked. If you want to find a number of cows, the st
resourcesdirectory to find “himi.png ". Therefore, we usually open the HD retina in the applicationdidfinishlaunching function of appdelegate. cpp and add the following code: Targetplatform target = gettargetplatform (); // obtain the current device typeIf (target = ktargetipad) {// if it is an iPadIf (pdirector-> enableretinadisplay (true) {// If HD retina is enabledCcfileutils: sharedfileutils ()-> setresourcedirectory ("../ipadhd ");} Else {Ccfileutils: sharedfileutils ()-> setresourced
friends punctuate praise bubbling;
The paper refused, and then refused, three refused, refused to my upset, discouraged, but I still want to treat him as first love;
Like a mushroom cool, lack of courage and confidence, silly miss, regret;
(It seems that the two are rather sad ...) Other unexpected)
Next year expect:
Whether it is a technical book, or other types of books, you should read a lot;
Develop a good habit of early to bed and early to eat break
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.