Programmer Group

If the UI gives us a design size of 750 * 1340. Combined with the dynamic font size attribute, design draft size and collaboration process between the front end and design on the html element of the home page of Netease and Taobao mobile terminal, they are generally divided into the following two types: 1. Netease practice: ...

Project requirements Project 10 uses port1,port2,port3,port4,prot5, and set  port1, set  port2, set  port3, set  port4, set  port5 to manage five ports. The code is bloated and repetitive, which is not easy to maintain. Solution:Use an array of structs. Project realization Modification: //Five port variables are defined //struct port por ...

1. Manually throw an exception 1. Custom invalid name exception: (1) Compile-time exceptions, inheriting Exception directly (2) Runtime exceptions, inheriting RuntimeException directly Example: Note: throws throws an exception up, if it runs to the top, that is, to the main main method, don't throw it anymore, use try...catch.... To print it ou ...

[TOC] Introduction of Participating Arguments in One Form Illustration: Fig. 05 The parameters of a function are divided into formal and actual parameters, referred to as formal and actual parameters: A formal parameter is a parameter declared in parentheses when a function is defined.A formal parameter is essentially a variable name that rece ...

1. First understand the recording process 1. Define AudioRecord recording related parameters, such as audio acquisition source, audio sampling rate, channel, data format, and minimum recording cache //Audio acquisition source private static final int mAudioSource = MediaRecorder.AudioSource.MIC; //Microphone //Audio ...

order This paper mainly studies the schedule message service of rocketmq ScheduleMessageService rocketmq-all-4.6.0-source-release/store/src/main/java/org/apache/rocketmq/store/schedule/ScheduleMessageService.java public class ScheduleMessageService extends ConfigManager { private static final InternalLogger log = InternalLoggerFactory.getLo ...

brief introduction PM2 is a process management of Node application with load balancing function! Built in load balancing (using Node cluster cluster module) Can run in the background It can shut down and reload in 0 seconds. (it can be understood that there is no need to shut down and restart, and we have updated the program w ...

Pure css for ripple effectNote: use pseudo element: after to define the ripple effect. At the beginning, opacity is 0, which is invisible to the user. Click and enter the active state. Opacity becomes 0.3, which is not zoomed. transition: 0s. After exiting the active state, it will display again naturally: after the style in t ...

Friends who have used YiluPHP have found that no matter model class, logical class, auxiliary class or tool class, you do not need to set load or injection in the configuration file or use include or require or use in the page when you use all classes. Just use $app - > class name - > method name (). This mechanism is so convenient that e ...

RDBMS 11.2.0.4  Before, the table was redefined online. The primary key mode is mainly used. This time, because there is no primary key on the table, it is done through rowid. The following is a simple example, which does not involve indexes, etc. (in fact, the index is also very simple, just set it to the tmp table and take i ...