submittal 123

constructor has no arguments, and parentheses can be omitted. function person () { this.name = ' Jim '; } var p = new Person; Without reference, it can be abbreviated without affecting the structure console.log (p); P contains the Name property ↑ No reference, can be abbreviated, does not affect the construction return value Do not write a return statement, then the constructor returns this by default In the constructor return basic type (return num, return 1223). The

;+----------+-------------+------+-----+---------+-------+| Field | Type | Null | Key | Default | Extra |+----------+-------------+------+-----+---------+-------+| Username | varchar (25) | NO | | NULL | || password | varchar (25) | NO | | NULL | |+----------+-------------+------+-----+---------+-------+mysql> INSERT into MySQL value (' Girl ', 123);mysql> INSERT into MySQL value (' Boy ', 123);Mysql> selec

exception-throwing mechanism: provides program developers with the ability to run error discovery, perform recovery processing, and then continue execution.Example:>>> try: F = open (' unfile.py ', ' r ') ... except IOError, E: ... print False, str (e) ... False [Errno 2] No such file or directory: ' unfile.py '#!/usr/bin/pythontry: #try尝试执行代码 open (' Abc.log ') except ioerror,msg: #except接受异常, notice that the name of the exception matches, and pass the exception message through the variable #占位

------------------------------- cisco switch: User Mode: switch> privileged mode: switch> enableswitch # global mode: switch # config terminalswitch (config) # interface configuration mode: switch (config) # interface f0/1 switch (config-if) # line Mode: switch (config) # line console 0 switch (config-line) # ---------------------------------------------------------------- configure host name and password: switch (config) # hostname 123123 (config) # view switch Configuration:

How does the https://www.dnspod.cn Add a record? 1. Under what circumstances will a record be used? [If you want to direct a domain name to an IP address, you need to add a record] 2. How to add a recordA. enter a subdomain name in the Host record (for example, to add www.123.com resolution, you only need to enter WWW in the Host record. If you only want to add 123.com resolution, leave the Host record bla

Compression command:*. Z compress program zookeeper case;*. Bz2 Bzip2 program zookeeper case;*. GZ gzip program upload history case;* The resources packaged by the. Tar program have not been deleted;* .Tar.gz tar program packaging example, which has passed the gzip exampleCompress filename compressed file plus [-D] uncompressGzip filename compression plus [-D] decompress zcat 123.gz to view the compressed file contentBzip2-Z filename compression plus

Compression command: *. Z compress program zookeeper case; *. Bz2 Bzip2 program zookeeper case; *. GZ gzip program upload history case; * The resources packaged by the. Tar program have not been deleted; * .Tar.gz tar program packaging example, which has passed the gzip example Compress filename compressed file plus [-D] uncompress Gzip filename compression plus [-D] decompress zcat 123.gz to view the compressed file content Bzip2-Z filename compressi

? PhpfunctionUPCAbarcode ($ code) {$ lw = 2; $ hi = 100; $ Lencode = array ('20160301', '20160301', '20160301', '20160301 ', '123', '123', '123', '123', '123' Function UPCAbarcode ($ code ){$ Lw = 2; $ hi = 100;$ Lencode = array ('20140901', '20160901', '20160901', '20160

();$ Redis-> connect ('2017. 0.0.1 ', 127 );$ Redis-> set ('test', "1111111111111 ");Var_dump ($ redis-> exists ('test'); // result: bool (true)?>7. incrDescription: storage key-value for incremental data.Parameter: key value: value to be added to the keyReturn value: INT the new valueInstance:$ Redis = new redis ();$ Redis-> connect ('2017. 0.0.1 ', 127 );$ Redis-> set ('test', "123 ");Var_dump ($ redis-> incr ("test"); // result: int (124)Var_dump

-this is the 'old fassioned' not translation page // It lest javascript use strings to act like raw octetsvar codePage = '123 '; this. path = name; var forward = new Array (); var backward = new Array (); // Note-for better performance I shocould preconv Ert these hex // definitions to decimal-at some point :-)-AJTforward ['80'] = '00c7 '; forward ['81'] = '00fc '; forward ['82 '] = '00e9'; forward ['83'] = '00e2'; forward ['84 '] = '00e4 '; forward [

Tag: Width bit identifies SDE SLA intersect end Kanji parameterI. Basic data type 1. StringClass: StrMethod: Select str, hold command (CTRL) + Left button to jump to the corresponding method Create A = "hexin" a = str (' hexin ') Transformation Age = 19new_age = str (age) Concatenation of strings name = ' hexin ' gender = ' female ' NEW_STR = name + genderprint (NEW_STR) String formatting placeholders # name = ' My name is Li Jie, sex:%s, I

list's ID and type will not change, and ist is a mutable type. All elements in the list can be either an int or a list (a child list). The values in lists are ordered.Define a list:L = [1, ' abc ', [3, ' a ']]Value: Value by indexPrint (L[0],l[2][0])Cycle: Liang#!/usr/bin/env python#-*-coding:utf-8-*-l=[1,2,3,[4,5]]count=0 whileCount Len (l):Print(L[count]) Count+=1L=[1,2,3,[4,5]] forCountinchRange (len (l)):ifType (L[count]) islist: forIinchRange (len (l[count)):Print(L[count][i])Else:

love girl[[email protected] ou]# cp-i/tmp /ou/111.txt/etc/hhal/ hosts hp/ hh/ hosts.allow htdig/ host.conf hosts.deny httpd/ Example 3: If Dest does not exist, the file is created in advance and the data flow from the source file is copied to dest.[Email protected] ou]# ls/etc/hh/111.txt 222.txt[[email protected] ou]# Cp/tmp/ou/111.txt/etc/hh/300[[email Protected] ou]# ls/etc/hh/111.txt 222.txt 300　　Multi-source Replication syntax:CP [OPTION

Recently the company's CactiEZ server often down, in order to find the cause and solve the problem, began to learn linux,0 Foundation Oh, a little bit every day, some of the following things have their own understanding, if you see the wrong place please criticize.1,ls1.1, lsView files under the current directory and other paths[[email protected] tmp]# lsInittab.1 keyring-lcsyxe pulse-ec9rleu7n2x5 VIRTUAL-123.PR3XJKInittab.new keyring-lledmg sort.test

A: What is a regular? A regular is a way to describe a character or string by combining symbols with special meanings, called regular expressions. Or, the regular is the rule used to describe a class of things. (in Python) it is embedded in Python and is implemented through the RE module. The regular expression pattern is compiled into a sequence of bytecode, which is then executed by a matching engine written in C.Second: Common matching mode (meta-character)650) this.width=650; "Src=" Https://

object objects cannot be enumerated. Next we'll see if the properties in the Window object can be enumerated The properties in the Window object can be enumerated Javascript For (Var v. in window) { console.log (v); In the Chrome browser, we'll see that the browser debug console prints out a bunch of properties that indicate that the properties in the Window object can be enumerated. 13. In JavaScript, you can dynamically add properties of objects, or you can delete objects

; } Test ("123");//123 Test ("123.5");//123.5 Test (123 );//123 Test (123.5);//123.5 Test

The contents of the file are as follows, requiring the line number corresponding to the file content[Email protected] ~ 13:01:16]# cat 123.txt name:i am gaoyangbirthday:19961025what the fuck!!!!1, Cat-n 123.txt[Email protected] ~ 13:54:38]# cat-n 123.txt 1name:i am Gaoyang 2 3birthday:19961025 4 5what the FU Ck!!!!2, NL 123