@admin Can you apply to become the administrator of the site?

@admin Can you apply to become the administrator of the site?

极世 2017-10-15 15:07:51 0  1  1313

ios - Memory management: CFStringRef manual release problem

Recently I was looking at third-party source code, which involved some data types in the Core Foundation framework, and encountered some memory management crashes. I have forgotten many things about C voice. I hope to get guidance from the master here. Problem: {code...} will cause the following cra...

phpcn_u1582 2017-06-10 09:48:13 0  1  875

@admin Can you apply to become a site administrator?

I want to become a site administrator and contribute to everyone! ! ! Be sincere and learn together. Don’t ask for anything in return, just ask the administrator/webmaster to see it and take it away………

极世 2017-10-19 16:39:32 0  1  1415

Java score management system?

The course assignment requires the development of a Java score management system with the functions of query, modification, sorting, maximum value, and minimum value. To display in a form, the grade data is imported using an imported txt. Looking for general directions, do I need to use a database?

ringa_lee 2017-06-12 09:22:53 0  4  1137

php - Novice purchasing, selling and inventory management design, please guide~

1. I am learning to develop a purchase, sales and inventory management system. Now I encounter a problem. How to count the quantities when making inventory reports? 2. Let me first list the several data tables I use ⑴ inventory table ⑵ warehouse table ⑶ warehouse-in slip ⑷ warehouse-out slip ⑸ exist...

怪我咯 2017-06-05 11:07:08 0  1  731

When editing administrator information, why are the unmodified contents empty?

When editing administrator information, why are the unmodified contents empty?

Sirius 2020-04-08 16:32:31 0  1  1055

Multithreading - Question about Java memory visibility

Please see the following code {code...} Replace Thread.sleep(1) with Thread.sleep(1000) to get the modified value of flag, that is, td.isFlag() returns true. Although I looked at the concept of Java memory model, I don't know how to interpret this code. Can anyone explain it? Related questions: Java...

漂亮男人 2017-05-17 10:06:58 0  4  991

The relationship between obtaining file input stream and memory usage in JAVA

A Java program obtains the input stream of a file, such as the input stream of a 50M text file. At this time, has the program loaded the entire file into memory? Has it occupied 50M of space in memory? Or is there just one entrance, and you need to loop through the contents...

三叔 2017-06-15 09:21:27 0  3  1077

After submitting the administrator password, an error of 500 internal server error is reported.

After submitting the administrator password, an error 500 internal server error is reported. The specific error is as follows: Internal Server ErrorThe server encountered an internal error or misconfiguration and was unable to complete your request. Please contact the server administrator

何、夕 2019-01-23 16:26:17 0  3  2509

php - How to understand the memory fragmentation mentioned in C language programming? Why should you avoid him as much as possible?

The memory is not completely random read and write, it is a different physical medium than the mechanical hard disk, so why does the presence of memory fragments in the memory affect the performance? What exactly does this memory fragmentation refer to?

滿天的星座 2017-06-24 09:42:23 0  3  962

"Adding custom buttons to reduce inventory: Adding new functionality to Woocommerce admin orders"

Need help updating my product inventory on WooCommerce manage orders page. I currently have some code that works, but it removes inventory from the wrong product. Does anyone know why? add_action('woocommerce_after_order_itemmeta','action_woocommerce_order_item_add_button',10,2);functionaction_wooco...

P粉029057928 2023-09-09 11:58:57 0  1  575

Is there a way to convert an html file to an in-memory PDF file in Java?

I received an HTML file and want to convert it to an in-memory PDF file. During conversion I don't want to use any external location for this. All I want is to keep it in memory. So far I've tried a few Java libraries for conversion, but they always create a temporary file somewhere and then read/wr...

P粉819533564 2024-02-26 14:02:31 0  1  458

After the installation is complete, click Manage and an Internal Server Error appears.

The server encountered an internal error or misconfiguration and was unable to complete your request.Please contact the server administrator at admin@php.cn to inform them of the time this error occur

PPπ 2018-05-08 23:21:22 0  3  1782

Urgent! Urgent! After the installation is successful, an Internal Sever Error appears when entering the background management. How to solve it? ? ? ? ? ? ? ? ? ? ?

Urgent! Urgent! After the installation is successful, an Internal Sever Error appears when entering the background management. How to solve it? ? ? ? ? ? ? ? ? ? ?

Hacken 2018-03-29 10:19:43 0  2  1420

Hello teacher, I would like to ask why my admin cannot log in. When logging in, it will prompt that there is no such user.

Hello teacher, I would like to ask why my admin cannot log in. When logging in, it will prompt that there is no such user.

T 2019-08-22 19:12:56 0  1  1051