behringer 222

username= ' waiting ' function fn () { alert (this.username);//undefined}fn (); Maybe everyone will be confused, why not output 守候 , but in a closer look, I declare the way is let that will not be the window objectIf the output waits, write like this var username= ' Waiting ' function fn () { alert (this.username);//Waiting for}FN ();//---------------window.username= ' waiting ' function fn () { alert (this.username);//Waiting for}FN (); 3-2. Object function Invocation This belief is n

.button1click (Sender:tobject);varJ:tjsonobject;beginJ: = Tjsonobject.create; J.addpair (' AA ',' 111 '); J.addpair (' BB ',' 222 ');//Output stringMemo1.text: = j.tostring;//Result: {"AA": "111", "BB": "222"}{ToJSON is the same as ToString, but should try to use ToString instead of ToJSON, because ToJSON is also calling ToString and reallocating memory}J.free;End;//tjsonarrayprocedureTform1.button2click (S

PHP Export CSV format data implementation: Define a string to store the contents, for example $exportdata = ' rule 111, Rule 222, Trial 222, Regulation 222, service 2222, rule 1, Rule 2, Rule 3, match character, set time, validity period '. \ n "; The array that needs to save the CSV is then made into a foreach loop, for example Copy the Code code as follows:if

. Delete: d command -- Delete the fifth line. By default, other lines will be printed to the screen [root @ strong sed_stu] # sed '5d 'emp.txt 0001 Alen M 240002 Tiboo M 320003 Felix M 260004 Jack F 240006 Audi F 300007 Bobo F 320008 Geo M 210009 Andy F 1900010 Peter M 28 -- delete records from the third row to the last row [root @ strong sed_stu] # sed '3, $ d 'emp.txt 0001 Alen M 240002 Tiboo M 32 -- delete the line from the include mode Felix to Geo [root @ strong sed_stu] # sed '/Felix /, /G

,#] as:6k (5k,6k]-#UNIT:[0,#-1] as:-6k means [0,5k]+ #UNIT: (#,∞) such as:+6k (6k,∞) 6) timestamp lookup based on time stamp: in "days" as a unit; the following #=1 as an example-atime[+| -]#,#:[#,#+1) find/etc/-atme1: represents greater than or equal to 1 days, less than 2 days time period is visited; +#:[#+ 1,∞]find/etc/-atime+1: Indicates that one day, including one day, has been visited-#:[0,#) find/etc/ -atime-1: Indicates that the;-mtime-ctime was visited a day ago in minutes: -amin-m

example:getfullname ()). The above mentioned content is only a partial feature of the backbone model. In backbone, there is also a portion of the content that involves using AJAX to synchronize data over HTTP via the RESTful JSON API. In this article, we will not discuss the details about synchronization. This section focuses on the lifecycle of a model (and a collection of models), but does not include synchronizing data. Subclass and create a Backbone.model To create a generic data model,

": "OK"}6) $addToSetUsage: {$addToSet: {Field:value}}Adds a value to the array, and only if the value is not inside the array. Cases:> db.test0.update ({"_id":}, {$addToSet: {"test1": {$each: ["444", "555"]}});> Db.test0.find ({"_id": 15});{"_id": {"Floatapprox":}, "Count": +, "test1": ["AAA", "BBB", "CCC", ["ddd", "Eee"], "fff", "GGG", ["111", "222"], "444", "555"], "test2": ["CCC"], "test4": "TESTV4", "Test5": "OK"}> db.test0.update ({"_id":}, {$add

('222','111','333');6$test 5 = Array ('test1'='111','test2'='222','test3'='333');7$test 6 = Array ('test1'=111,'test2'=222,'test3'=333);8 if($test 1== $test 2) {Echo'Success1';}9 if($test 3== $test 4) {Echo'Success2';}Ten if($test 5== $test 6) {Echo'SUCCESS3';} One?>Output Result: SUCCESS1SUCCESS32.=== (Identity)Variables: Both numeric an

view does not exist Used time: 00: 00: 00.06SQL> L1 Delete form BB where rowid! =2 (select max (rowid) from BB t3 where BB. ID = T. ID4 * and BB. Name = T. Name)SQL> 11 * Delete form BB where rowid! =SQL> C/form/from1 * Delete from BB where rowid! =SQL> L1 Delete from BB where rowid! =2 (select max (rowid) from BB t3 where BB. ID = T. ID4 * and BB. Name = T. Name)SQL>/ Seven rows have been deleted. Used time: 00: 00: 00.01SQL> It's easy to finish the work here. Netizen: DD, I pointed out t

The way to implement a regular in Python is through the RE (regular expression abbreviation) module, you can invoke the various methods of the RE module to implement different functions, below we say, in Python through the RE module can call those methods, And the role of these methods, as well as the regular examples and the meanings of various special symbols: 1, re.sub and replace: Sub of the whole is substitute, that is, the meaning of substitution, since it is easy to use the example of s

This article mainly introduces the python regular expression learning summary, which is of great reference value, for more information about how to implement regular expressions in Python, you can use the re (regular expression abbreviation) module, you can call various methods of the re module to implement different functions. Next let's talk about the methods that can be called through the re module in Python, and what the functions of these methods are; there are examples of regular expressio

Test instructions: Input n,k, and then enter n number, this n number represents the distance from the starting point, now to select K points, so that the distance and the smallest.Analysis: We ask to choose K points from n points to minimize the distance, that is, dp[n][k], then dp[n][k] is Dp[n-1][k-1]+sum[n][n],dp[n-2][k-1]+sum[n-1][n],dp[n-3][k-1]+sum [N-2] The minimum value between [n]....dp[1][k-1]+sum[2][n].where sum[x][y] means to select a point from the X-point to the Y-point at the shor

tupletupleInfo = () print (Tupleinfo)Output: ()#定义一个只有1个元素的tupletupleInfo = (1111) print (tupleinfo)Output: 1111Description: If the following definition is a true tuple, it represents only one element of the tupleTupleinfo = (1111,) print (Tupleinfo)Output: (1111,)In this case, indirectly through the list to change the tuple actually, the change is a variable list and the tuple does not change, but the indirect is the same as the change.mylist = [' php ', ' Java ', ' C # ']tupleinfo = (111,222,3

The way to implement regular in Python is through the RE (regular expression abbreviation) module, you can invoke the various methods of the RE module to implement different functions, so let's say, in Python, we can call those methods through the RE module, And what are the effects of these methods, and what are the regular instances and the meanings of the various special symbols: 　1, re.sub and replace: The whole of a sub is substitute, that is, the meaning of substitution, since we know it

I just want to talk about 26xx... Now there is a problem in front of me, I don't know if I can say Cisco is bad ..# Sh runIp nat inside source static 192.168.36.21 222. X. y.1Ip nat inside source static 192.168.36.22 222. X. y.2Ip nat inside source static 192.168.36.28 222. X. y.3 This is really strange ....2610xm # Ping 192.168.36.28 Type escape sequence t

Ruby common file operation code example This article mainly introduces common Ruby file operation code instances, such as file creation, output file content, IO operations, output file path, and stringio usage. For more information, see ? 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 # Create a