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format String T5 = "01/01/01 16:10:01";string P5 = @ "(\d+)/(\d+)/(\d+) (\d+):(\d+):(\d+)";Match M5 = Regex.match (T5, p5);Change directory (Windows platform only) string T6 = @ "C:\Documents and settings\user1\desktop\";string r6 = Regex.Replace (t6,@ "\\user1\\", @ "\\user2\\");Extended 16-bit escape characters String t7 = "%41"; Capital AString P7 = "% ([0-9a-fa-f][0-9a-fa-f])";String R7 = Regex.Replace (T7, P7, Hexconvert);Delete comments in C language (to be perfected) string T8 = @ "/** T

\*/# matching Comment End delimiter "; String r8 = Regex.Replace (T8, P8, "", "XS"); Deletes a space at the beginning and end of a string String t9a = "leading"; String p9a = @ "^\s+"; String r9a = Regex.Replace (t9a, p9a, ""); String t9b = "trailing"; String p9b = @ "\s+$"; String r9b = Regex.Replace (t9b, p9b, ""); Add the character n after the character \ to make it a true new line string T10 = @ "\ntest\n"; string R10 = Re

hardware Previous drivers When a new hardware driver is installed and you find that the system is unstable or the hardware is not working, simply select the Driver Recovery button in Device Manager to revert to the previous normal system state. However, the driver for the printer cannot be restored. 6. Automatic Login Click start → run, enter "Rundll32netplwiz.dll,usersrundll" (without the quotation marks), and then cancel in UserAccounts " Usersmustenterausernameandpasswordtousethiscomputer

, the default display width, sufficient to display the entire original stored data #when displayed, not enough 8 bits are filled with 0, if more than 8 bits are displayed normallyCREATE table T5 (x int (8) unsigned zerofill); INSERT into T5 values (4294967296123) insert into T5 values (1);2, float type (generally used float)function: storage height, weight, salary Category: Float (*****) Double (**) Decimal (**) Test:#same Point#1, for the three, can store 30 decimal places,#different points:1,

Tags: get opcode fine Create compute Ash folder. NET content substitution1, in any folder, create a new 10 empty files, the file name is T1.txt-t10.txt, the file content is 11-20, on a line, and then the 10 files named as t1.sh-t10.sh.Old driver Version:$ for ((i=1;i$ for fie in ' ls *txt ';d o p= ' basename $fie. txt '; MV $fie ${p}.sh;d one #重命名Small rookie version:#!/bin/bashFor i in {1..10} #创建加写入DoTouc

, the Uek core can support both Oel 5 and Oel 6, and the use of both cores can be supported by Oracle and the price is consistent; With the joint efforts of Oracle's Linux operating system, database, middleware and hardware teams, Uek has the following outstanding features: High-speed: OLTP performance tests show performance over red Hat 75%, speed up 200% for InfiniBand information processing, and 137% increase in access to solid-state disks. NEW: Optimized for large NU

Recently learning Golang, always want to experience the next concurrency in the end have more, will I big python strong how much. Learned the official tutorial HTTP service, using the Performance test Tool WRK test, found the result is very surprising ~WRK can refer to my blog, there are basic usage notes: http://blog.yuanzhaoyi.cn/2018/01/12/test.htmlTest command: wrk-t10-d1m-c200 http://127.0.0.1:8080Meaning: 10 thread, concurrent 200 link, lasts 1

1. File processing=open(file="file01.txt", mode="r", encoding="utf-8"#python3默认编码格式为utf-8= f.read()print(data)print(type# f.close()If an error#UnicodeDecodeError: ‘utf-8‘ codec can‘t decode byte 0xcc in position 0: invalid continuation byteThe description is not coded.According to the normal logic, the file is stored in what way, it should be used in what way to read, such as gb2312, should be gb2312 to read. Files are stored in Utf-8, and are read in UTF-8 encoded format.2. File processing-bina

Summary four: Linux time-related common commands1. Date command-show time or set timeUsage (1): date [options] ... [+format] Display+%f,+%d Show Date+%t Show Time+%y years+%m Month+%d Day+%h when+%m points+%s seconds+%u Week+%s time stamp timing, number of seconds from the beginning of Unix (1970-01-01-00:00:00) to this moment[Email protected] ~]# date +%f2015-07-08[Email protected] ~]# date +%t10:12:47Usage (2): Date [MMDDHHMM[[CC]YY][.SS]] set tim

1. Format:ctrl+shift+fA) Set formatting style:I. Open windows->preferences-"java-"code style-" Formatter, edit the format or create a new format as requiredIi.2, member Sort:Source-"sort Members"3, finishing import:source-"organize import4. Code refactoring:A) Open refactor->renameb) Mobile Refactor->movec) The anonymous class is changed to an external class:Convert Anonymous class to NestedDView Code5. View display structure:ctrl+t6. View Code fallback:ALT +←7. View Code forward:ALT +→8. View

1. First determine the USB disk letter, you can plug in your USB drive, and then you can see the letter, this step is very important, if the letter is wrong, then let your computer sleep; 2. Create a file in the USB drive, file name and extension are arbitrary input, such as the file created here is 123.LJ; 3. Create a batch file on the local disk (saved with Notepad as. bat), which is the following line statement: Ifnotexisti:123.ljshutdown-s-t10-

1. First determine the disk of U disk, you can plug in your own USB disk, and then you can see the letter, this step is very important, if the letter is wrong, then let your computer sleep; 2. Create a file on the U disk, file name and extension are arbitrary input, such as the creation of a file of 123.LJ; 3. Create a batch file on the local disk (saved with Notepad as. bat), which is the following line statement: Ifnotexisti:123.ljshutdown-s-t10-

-border-radius:4px; border-radius:4px;} . widget-heading{ Font-size:1.5rem; line-height:1; Font-weight:bold; Color: #BADA55; margin-right:-10px; Margin-left: -10px; padding:0.25em; }We can find that. widget-heading is a child of the. Widget, because the former has a more indented style set than the latter. This allows developers to quickly get such important information as they read the code by indenting it.We can also find that t

: 2 #元素2第一次出现在索引为2的位置6 T.index (2,3,7) 7 results: 6T1 + T21 function: Merge two tuples, return a new tuple, primitive tuple invariant 2 syntax: T = T1 + T2 3 T1 = (' A ', ' B ', ' C ') 4 T2 = (1,2,3,4) 5 T = T1 + T 2 6 Result:7 Print T 8 (' A ', ' B ', ' C ', 1,2,3,4) 9 print T110 (' A ', ' B ', ' C ') print T212 (1,2,3,4)T1 * N1 function: Repeat output tuple n times, return a new tuple, primitive tuple unchanged 2 syntax: T = T1 * N3 T1 = (' A ', ' B ', 4 T = T1 * 35 results: 6 print T7

body,textarea,input,select,option{font-size:12px;Color:#333;font-family:Tahoma,arial,sans-serif;}H1,h2,h3,h4,h5,h6{font-size:100%;}Body,h1,h2,h3,h4,h5,h6,blockquote,ol,ul,dl,dd,p,textarea,input,select,option,form{margin:0;}OL,UL,TEXTAREA,INPUT,OPTION,TH,TD{padding:0;}Table{Border-collapse:collapse;}Ol,ul{List-style-type:None;}. Clearfix:before,.clearfix:after{content:"';Display:Table;}. Clearfix:after{Clear:both;}. Clearfix{*zoom:1;}. Clear{Clear:both;Height:0;Overflow:Hidden;}a{text-decoration:

"); Adds all the arguments after the first argument array as an element to the beginning of the first argument array, with the key value 0 from the first element, the original Non-numeric key value remains unchanged, the original element sort position is unchanged, and the array length is returned$int =array_unshift ($arr, "T1", "T2"); Returns the last element value from the tail of the array and removes the last element from the original array$value =array_pop ($arr); Array_pop Instead, e

and 40% of TOP100 supercomputers are using this system. Peter Bojanic, director of Sun Lustre, said: "The lustre file system can be extended to support petabytes of data within a namespace, providing cumulative performance beyond the 100gb/s for more than 25,000 users, including the Livermore Moore National Laboratory, High-performance applications at Oak Ridge National Laboratory and the San Diego National Laboratory, these users have high requirements for large file I/O and continuous high b

.--fields-terminated-by=charSpecifies the delimiter between the values of each data, in a period-delimited file,The delimiter is a period. You can use this option to specify a delimiter between data.The default delimiter is Jump Geff (Tab)--lines-terminated-by=strThis option specifies a delimited string of data between rows in a text file and linesor character. By default, Mysqlimport with newline as the line delimiter.You can choose to replace a single character with a string:A new line or a ca

down, Including read the code, mainly have c,t,l,r and Ac,at,al,ar, respectively, according to the number of query, time, lock time and return records to sort, the front plus a when the flashback -t, is the meaning of topn, That is, to return the first number of data -g, behind can write a regular matching pattern, case insensitive mysqldumpslow-sc-t20 host-slow.logmysqldumpslow-sr-t20host-slow.log The above command shows the 20 most visited SQL statements and 20 SQL that returns the maximum nu

choose to replace a single character with a string:A new line or a carriage return.The common options for the Mysqlimport command are the-v Display versions (version),-P Prompt for password (password) and so on.There is a problem with this tool and it is not possible to ignore some of the columns, which is a big hassle for our data import, althoughThis field can be set manually, but there will be inexplicable results, we do a simple exampleWe define the following depart_no.txt, which are saved