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1, Summary One sentence summary: 1. The data migration of lavarel is relatively simple, which is to create data tables with php 2. Create migration file: PHP artican make: migration create? HD? Table -- create = HD 3. Create the migration file as a table: PHP artican migrate   1. Install barryvdh / laravel ide helper to add code prom ...

vue language is used, and component of element is used. To make an online editing code, code content is required to be input, highlighted display can be carried out, different languages can be switched, keyword completion is supported, and a code left-right comparison between different versions is required. As for why codemirror is selected, pl ...

Basic sorting algorithm c++ Foundation Generate Instant Test Cases int *generateRandomArray(int n, int rangeL, int rangeR) { assert(rangeL <= rangeR); int *arr = new int[n]; srand(time(NULL)); for (int i = 0; i < n; i++) arr[i] = rand() % (rangeR - rangeL + 1) + rangeL; return ar ...

shell programming alarm system 1. Requirements: use shell to customize various personalized alarm tools, but unified management and standardized management are needed 2. Idea: specify a script package, including main program, subprogram, configuration file, mail engine, output log, etc Main program: as the entrance of the whole script, it is ...

1 CORTEX-M 1.1 boot program Take stm32 as an example, add an online upgrade boot program with rom address: LR_IROM1 0x08000000 0x00004000 { ; load region size_region ER_IROM1 0x08000000 0x00004000 { ; load address = execution address *.o (RESET, +First) *(InRoot$$Sections) .ANY (+RO) } RW_IRAM1 0x20000000 0x00020000 ...

Load the Workspace entry in / packages/apps/Launcher3/src/com/android/launcher3/model/LoaderTask.java. To learn about the launch process of the Launcher app, please read this article first, https://www.jianshu.com/p/0b273112cd7e 1. The Workspace load calling process is as shown in the figure Code entry:/packages/apps/Launcher3/src/com/android/l ...

1, Fundamentals Here, "copy on write" is enclosed with a quotation mark, because this is specifically for the copy on write effect when rsync backup is used, rather than the actual copy on write effect. Its purpose is as follows: After backing up the data using rsync, create a snapshot immediately: The data state of the snapsh ...

File is used to view file types. Different from Windows system, Linux system does not reflect the file type through the file name, so you need to use the file command to confirm. [admin@local ~]$ file exe exe: Bourne-Again shell script text executable As above, use the file command to view the type of exe file, whic ...

Previously, we talked about the cache control mechanism in http protocol and the introduction of varnish architecture components. Please refer to https://www.cnblogs.com/qiuhom-1874/p/12620538.html Today, let's talk about how to configure and use varnish; We mentioned earlier that there are two configuration files in varnish, one is / etc/varni ...

Execute command on serverIt seems that there is no module to execute the command before. Now it is added import subprocess obj = subprocess.Popen('dir',shell=True,stdout=subprocess.PIPE) #Get an object. The command is in front, shell The script can be executed, stdout Set a process pipeline. There are actually two processes, one is the main p ...