characters
Copy Code code as follows:
# grep-n ' ^[a-z] ' regular_express.txt
6. Show end of line as point. In that line
Copy Code code as follows:
# grep-n ' \.$ ' regular_express.txt
7. Display 5-9 rows of data
Copy Code code as follows:
# Cat-an Regular_express.txt |head-n |tail-n 6
8. Show Blank Lines
Copy Code code as follows:
# grep-n ' ^$ ' regular_express.txt
9. Find G?? D string, beginning G end d of four str
=org.apache.log4j.patternlayoutlog4j.appender.stdout.layout.conversionpattern=%5p [%t]-%m%n then test the normal sqlsession again, found that although 1000 data were inserted in the log content, only one new connection was created. The connection was finally closed (log below). That is to say, the normal sqlsession in MyBatis seems to have been done for bulk inserts by default in a single connection. Then also provide executortype.batch way to do, and this way seems to be inefficient, or I use E
:+--[RSA 2048]----+| . ooo+o || ... o+. E || o.+ O || . o O || S. ... || .. o O || .+ . O. || ... . + || ... . |+-----------------+
2, Putty production key
Open Puttygen, if not the program can be downloaded to the official website of Putty.
Click the Generate button after the following figure, in the red box constantly moving the mouse know key generation complete
Click the Generate button after the following figure, in the red box constantly mov
Using.Modules.Http ();
Http.set ("xxx");
Http.show ();
});
If you use it in this place
var ht = new Using.Modules.Http ();
It's a Using.Modules.Http, not a constructor.
The reason is
Any operation is asynchronous, and the using ("Http") module loading may not be completed when this sentence is executed
This is a mistake the Zhongmo makes when it's used to multiple friends. Always think the guide bag is all right.
Yes, it's supposed to be like this. After the guide package ca
character, which is used to represent arbitrary characters, but in a regular expression, he has a different meaning, * indicates that there are 0 or more characters.
For example, oo*, which means that the first o must exist, the second o can have one or more, or not, and therefore represents at least one o.
Point. Represents an arbitrary character that must exist. G?? D can be used ' G.. d ' says. Good, Gxxd, gabd ... All fit.
woody@xiaoc:~/tmp$ Grep-n ' G.. d ' Regular_express.txt
1: "Open S
three-part perspective, when the value of the variable is undefined, then the variable only the stack area of the indicator, If we assign operations to undefined variables, if the value is a basic type, then the value of the stack area is a value, if the stack area is an object then the heap area will have an object, and the value of the stack area is the address of the heap area object, if the variable value is NULL, we naturally think that the variable is an object, And it's an empty object,
* represents a wildcard character, which is used to represent arbitrary characters, but in a regular expression, he has a different meaning, * indicates that there are 0 or more characters.
For example, oo*, which means that the first o must exist, the second o can have one or more, or not, and therefore represents at least one o.
Point. Represents an arbitrary character that must exist.
G?? D can be used ' G.. d ' says. Good,gxxd,gabd ..... All fit.
A, search for a string of two o above
Topic 2: Attendance Record II time limit: 10000ms single point time limit: 1000ms memory limit: 256MB description
Small Hi algorithm teacher every class will count small hi's attendance record. Late will be recorded an L, the absence will be recorded a, on time class will be recorded an O.
At the end of the semester, a little hi's attendance record can be seen as a string containing only Lao, such as "Oooolooolallo ...".
If little hi absent in the whole semester not more than 1 times, and not 3
RedisImportRedis,jsonr=redis. Redis (host='192.168.160.3', port=6379,db=0,password='123456')#Redis has all the strings in it, and the data obtained from Redis is bytes type.#A String type keyR.set ('name', [1,2,3,4]) name= R.get ('name')Print(Name.decode ())#you want to use the. Decode method to turn it into a string to continue the operationNew_name = Json.loads (Name.decode ())#List and dictionaryPrint(Type (new_name)) R.setex ('Eee','hahaha', 15)#can set the expiration time of keyPrint(R.get
Tags: recursive OLE at the beginning of a continuous regular expression expression dir lin
Global search Regular expression (RE) and print out of the line
I. FORM of command1. grep -n --color=auto ‘str‘ filename/dirname2. cat filename | grep ……3. grep -E ‘(str)+\.?[0-9a-zA-Z]..str.*‘4. egrep ‘str1|str2‘5. grep -F ‘*‘ ……6. fgrep ‘*‘ ……Two, example 1. grep parameters* -n 行号* --color=auto 结果颜色高亮显示,一般在alias中定义即可* -c 对结果行计数* -i 不区分大小写* -v 反向搜索* -m3 匹配行数达到3行后停止匹配 * -A1 同时打印搜索结果行的后一行* -B3
1. Case: When: Then.. End Oracle Case when usage introduction1 SelectNvlsum( CaseP.need_mistake_audit_level2 when 1 Then3( Case4 whenMis.audit_statusinch(-1,0) Then5 16 Else7 08 End)9 when 2 ThenTen( Case One whenMis.audit_statusinch(-1,0)or A(Mis.audit_statusinch(1) andMis.audit_status2inch(0,3)) Then - 1 -
://www.tatanka.com.br/ies4linux/page/Installation
[
Edit] Install OOo3.0.0 in Simplified Chinese version and enter:
Wget
Http://spout.ussg.indiana.edu/openoffice/localized/zh-cn/3.0.0/OOo_3.0.0_LinuxIntel_install_zh-cn_deb.tar.gzDecompress the package, double-click the folder, double-click setup, and choose to run on the terminal. Press next to upgrade OOo_2.4 to OOo_3.0.0.
OOo download page:
Http://download.openoffice.org/other.html#en-US
[
Edit] Pro
bitwise mode to specify the ASCII code corresponding to the character
Vertical ASCII code Tab
11' \ V'
= '\ Xb' ('\ xhh' hh is a hexadecimal number of at most 1)
= '\ 013' (' \ ooo' is one to three octal values)
3.8 String Representation
The C language has no limit on the length of the string, but the program must scan the complete string ('\ 0' Terminator) to determine the length of the string.
Strlen returns the string length, excluding the Termina
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