Alibaba Java Development Manual——Comparator

The picture above is the description in "Alibaba Java Development Manual v1.2.0". Here is a counterexample, saying that equality is not handled, but I think: {code...} The other way around is {code...} I usually use it like this. Could you please help me explain the technique here? what is...

PHPz 2017-05-27 17:40:39 0  3  995

javascript - How to disable horizontal screen of mobile phone in webapp developed with js

Using js to develop a webapp, the leader requires that it can only be viewed when the mobile phone is in portrait mode and not in landscape mode. How to prohibit the mobile phone in landscape mode?

巴扎黑 2017-07-05 10:49:37 0  4  971

Is there anyone who has developed a second-hand car trading platform (PHP)?

Has anyone developed a second-hand car trading platform (PHP) or a second-hand house trading platform? learn learn

Realccc 2018-03-19 18:32:41 0  0  3253

What version of thinkphp is this? Is it suitable for novice developers now?

What version of thinkphp is this? Is it suitable for novice developers now?

正儿扒经 2017-12-18 10:40:00 0  6  1500

javascript - Full screen display problem of mobile game development page

Develop a simple small game. The size given in the design drawing is 640*1136. After rem adaptation, some mobile phones with small heights cannot display all the content, and the game cannot use scroll bars. What should I do? Thanks

迷茫 2017-05-31 10:41:37 0  2  982

I want to implement an android phone to obtain server database information. I wonder if I can use PHP to develop a database server.

I'm a newbie. The front-end software for Android phones already exists, using json format for communication, and the back-end service software is tomcat. Now I want to establish a connection between tomcat and mysqli to realize the data acquisition function of the front-end android mobile phone. Can...

hty78 2018-12-17 18:40:19 0  0  1115

What does the Laravel api manual do?

What does the Laravel api manual do? When is it generally used in development? Laravel API

世界只因有你 2017-05-16 16:54:08 0  3  607

javascript - The project directory cannot be created correctly when using Django for the first time under Windows

According to the Django development manual, enter {code...} and the result will appear as shown below. The relevant environment variables have been configured.

女神的闺蜜爱上我 2017-06-12 09:23:13 0  1  703

How to solve the problem of failure to render template files using view in think PHP 6.0

Page error! Please try again later ~ ThinkPHP V6.0.3 {Ten years of sharpening a sword - a high-performance framework designed for API development} - Official manual

花生酱 2020-08-06 23:12:56 0  0  1183

javascript - Is there a front-end framework suitable for developing mobile Html5 web games?

I do PHP, and currently I only use simple javaScript and JQuery, and I have never used a front-end framework. Is there a front-end framework suitable for developing mobile Html5 web games? Just some simple mini-games, such as Snake, Tetris, and masturbation, which may need appropriate beautification...

仅有的幸福 2017-05-31 10:42:02 0  7  1336

javascript - Mobile terminal development H5 page cannot be implemented on iOS mobile phones. Long press to copy text. Looking for a solution?

Mobile terminal development H5 page cannot realize long press to copy text on iOS mobile phone. The answer from Baidu and Google search is that the iOS mobile phone system comes with a setting that needs to be disabled. Our requirement is to realize this function. However, when I tested on the mobil...

ringa_lee 2017-05-16 13:29:16 0  1  627

Omission error in thinkphp6.0 rapid development manual (case version)

Database chain operation [10. Template paging example] // Incorrect $right = $list->toArray(); // Correct $right = $list->toArray()["data"];

迷心兔 2020-02-13 01:03:26 0  0  1104

Omission error in thinkphp6.0 rapid development manual (case version)

Database chain operation [10. Template paging example] // Incorrect $right = $list->toArray(); // Correct $right = $list->toArray()["data"];

迷心兔 2020-02-13 01:04:43 0  16  1255

Omission error in thinkphp6.0 rapid development manual (case version)

Model: It is recommended to change the method name public function goods_find(){ // $find = Goods::find(6); $find = Goods::where('id',27)->find();

迷心兔 2020-02-13 16:52:16 0  6  1205

Alibaba Java Development Manual Questions about switch

Within a switch block, each case is either terminated by break/return, etc., or a comment indicates which case the program will continue to execute; within a switch block, a default statement must be included and placed at the end, even if it There is no code. This is...

代言 2017-06-12 09:27:30 0  1  1043

Learn about open source a high-speed backend development framework that is good-looking and can be commercially used.

Developed based on ThinkPHP6 version, studying this manual will help you quickly master the development architecture of this framework! Please note that the installation script file will be automatically deleted after the framework is successfully installed! ! ! If the permission issue is not delete...

风筝 2022-05-25 11:23:56 1  1  1214

javascript - Some mobile phones cannot select files when uploading videos using Qiniu on the WeChat official account

1. WeChat official account development and design to upload videos, using Qiniu to upload videos. It was found that when opening local files in WeChat official account, some mobile phones (Huawei) cannot select video files, and some mobile phones (Meizu Note2) can only directly call the photo album....

给我你的怀抱 2017-05-16 13:28:51 0  1  777

javascript - How to save pictures to the mobile phone album on the mobile terminal?

How to save pictures to the mobile phone album on mobile? Requirement: Click the button to save the current picture to the mobile phone album development environment vue2.0 + webpack, js. Is there any way to achieve this requirement? You can have Baidu for both plug-ins and native ones. I have seen ...

淡淡烟草味 2017-05-19 10:42:09 0  1  1499

javascript - The front-end of many web pages is a whole picture cut out with many small materials such as button icons, etc. Why is this? Will mobile development also operate in this way?

For example, Weibo’s v-certified icon. Why not divide the UI into a batch of files instead of cropping them when using them? By the way, will this be done on the mobile phone during real development?

淡淡烟草味 2017-07-03 11:42:32 0  3  939

No error details are reported

Page error! Please try again later ~ ThinkPHP V6.0.12LTS {Ten years of sharpening a sword - a high-performance framework designed for API development} - Official Manual After the upgrade, no error details are reported, only the above screen, is it closed somewhere? ? Please correct me, thank you

P粉788137374 2022-04-29 16:41:57 0  1  1360