# Modification of coding
“`pythonshow variables like ‘%char%’; #View the current encoding
1.Open configuration file: vim /etc/mysql/my.cnf 2.After [client] and [mysqld], add: [client] default-character-set=utf8 [mysqld] character-set-server=utf8
3.Restart mysql: service mysql restart“`
# mysqlreset password
“`python#1.Open configuration file: sudo vim /etc/mysql/mysql.conf.d/mysqld.cnf
2. Add in the [mysqld] segment: skip-grant-tables #Skip permission to start MySQL
3.Restart MySQL service mysql restart
4.Log in with root, without pa...
linux Download the redis database.
apt install redis
If the right is not enough, the right is directly raised.
sudo apt install redis-server
linuxEnable and stop service
service redis startservice redis stopservice redis restart
xshellEnter Linux
cd .. # Return to root directory
ls # see file
cd etc/
Well, it’s time to get to the point.
First, record.Connect, exit, switch databaseA command
Connect:redis：redis-cli
Sign out:exit
Switch database:select n
The database has no name, 16 by default, identified by 0-15, and the connection redis selects the first database by de...
Jumping game
Given a non negative integer array, you are initially located in the first position of the array.
Each element in the array represents the maximum length you can jump at that location.
Determine whether you can reach the last position.
Example 1:
Input: [2,3,1,1,4]Output: trueExplanation: jump 1 steps from position 0 to 1, then jump 3 steps to the last position.
Example 2: input: [3,2,1,0,4]
Output: falseExplanation: anyway, you always get to the index 3. But the maximum jump length is 0, so you can never get to the last position.Train of thought: adoptdynamic program...
// getters
const getters = {
netStatusMonitorData: state => {
return state.faultInfo;
},
};
const mutations = {
[baseTypes.UPDATE_DATA_MODULE](state) {
//oldcode
//state.faultInfo =pageData.dataSource;
//After the assignment does not trigger the getter method to refresh, it changes the deep copy to trigger the getter refresh.
let tempData = {};
$.extend(true, tempData, pageData.dataSource);
state.faultInfo = tempData;
}
};
1、Clicking rate
The ratio between the number of hits and the number of keywords displayed.
2、The matching degree of creative content and keywords refers to whether the key is smooth after the key is incorporated.
For example:
Key words: English Schools
Originality: to learn English well {Harbin English school}.
3、Correlation between creative content and keywords
4、Landing page: correlation between keywords, creativity and landing pages
5、Click performance: netizens click on search results and enter the website after...
To control average click price and save costs, we need to start with the following aspects:
1、Improve the quality if you can do that.
2、Control ranking, ranked third to five, click the price is certainly much lower.
3、PC terminal plan and mobile terminal plan are set up respectively.
4、Each city plans to make an accurate bid. The drawback is that it will be very troublesome to operate.
5、Relax the matching mode, bid according to the matching, the average click price will certainly be ...
1、By default, Mysql compares strings in a case-insensitive manner, and if you want to make case-insensitive comparisons, you can add the Binary keyword, which means that strings are handled binarily. When comparing operations on strings, MySql will distinguish the size of strings.Write.
For example:
2、When a number and a string are operated on, the string is converted to a number according to certain rules. If the first bit of the string and several consecutive digits after it are numbers, it is converted to the value of the number, otherwise, it is converted to 0.
For example:
Original text: https://linuxtools-rst.readthedocs.io/zh_CN/latest/tool/ldd.html
ldd
Function: Used to view shared libraries needed by a program to run, often used to solve problems that a program cannot run because it lacks a library file.
Example: look at the library that test programs run on:
/opt/app/todeav1/test$ldd test
libstdc++.so.6 => /usr/lib64/libstdc++.so.6 (0x00000039a7e00000)
libm.so.6 => /lib64/libm.so.6 (0x0000003996400000)
libgcc_s.so.1 => /lib64/libgcc_s.so.1 (0x00000039a5600000)
libc.so.6 => /lib64/libc.so.6 (0x0000003995800000)
/lib64/ld-linux-x86-64.so.2 (0...
