5 recommended articles about group messaging
General idea: 1. First, you must apply for a public account on the WeChat public platform. 2. Then perform a simulated login. (Since I don’t know much about http transmission principles and programming, I’m not very clear about the simulated login. I hope someone can give me some advice) 3. After simulated login, you will get a token and cookie. 4. Because after simulated login, you are equivalent to entering the WeChat public platform, where you can capture the required data, such as the nickname of public friends and fakeId. The fakeid is very important, because the fakeid of the other party must be known to transmit data. 5. Once you know the fake ID of the other party, you can send the data. However, there are still some small problems in it, and I hope someone will continue to modify and discuss it! Some people also say that this will cause your account to be banned, so please operate with caution. Let me talk about the main contents of my project 1. The WeiXinLogin.cs class is used to perform the login function // MD5 encryption of passwords static string GetMd5Str32(string str) &n
##Introduction: After several days of studying the code on the Internet and the help of Master Xie Can, today I finally used C# to implement group messaging on WeChat public accounts. Now share it
2. How to check whether users have read group messages?
Introduction: How to send group messages to ensure whether users have read them? Thank you all
3. php development of WeChat mass sending background implementation
4.
Backend-php development WeChat mass sending button implementation
##Introduction: I hope to implement WeChat group messaging through the background! [Image description](http://img.ask.csdn.net/upload/201507/08/1436314779_17826.jpg) Please here is the js and execution of sending How to write developer documentation in php is not helpful
5.
php-How to send group messages from the WeChat public platform test accountIntroduction: Because the project is new to WeChat development, a test account is used. How do I send a group message? I used PHP and Sina's sae to build
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php - How to check whether the user has read the group message?
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In C, the char type is used in strings: 1. Store a single character; 2. Use an array to represent a string and end with a null terminator; 3. Operate through a string operation function; 4. Read or output a string from the keyboard.

The usage methods of symbols in C language cover arithmetic, assignment, conditions, logic, bit operators, etc. Arithmetic operators are used for basic mathematical operations, assignment operators are used for assignment and addition, subtraction, multiplication and division assignment, condition operators are used for different operations according to conditions, logical operators are used for logical operations, bit operators are used for bit-level operations, and special constants are used to represent null pointers, end-of-file markers, and non-numeric values.

In C language, special characters are processed through escape sequences, such as: \n represents line breaks. \t means tab character. Use escape sequences or character constants to represent special characters, such as char c = '\n'. Note that the backslash needs to be escaped twice. Different platforms and compilers may have different escape sequences, please consult the documentation.

The difference between multithreading and asynchronous is that multithreading executes multiple threads at the same time, while asynchronously performs operations without blocking the current thread. Multithreading is used for compute-intensive tasks, while asynchronously is used for user interaction. The advantage of multi-threading is to improve computing performance, while the advantage of asynchronous is to not block UI threads. Choosing multithreading or asynchronous depends on the nature of the task: Computation-intensive tasks use multithreading, tasks that interact with external resources and need to keep UI responsiveness use asynchronous.

In C language, the main difference between char and wchar_t is character encoding: char uses ASCII or extends ASCII, wchar_t uses Unicode; char takes up 1-2 bytes, wchar_t takes up 2-4 bytes; char is suitable for English text, wchar_t is suitable for multilingual text; char is widely supported, wchar_t depends on whether the compiler and operating system support Unicode; char is limited in character range, wchar_t has a larger character range, and special functions are used for arithmetic operations.

In C language, char type conversion can be directly converted to another type by: casting: using casting characters. Automatic type conversion: When one type of data can accommodate another type of value, the compiler automatically converts it.

There is no built-in sum function in C language, so it needs to be written by yourself. Sum can be achieved by traversing the array and accumulating elements: Loop version: Sum is calculated using for loop and array length. Pointer version: Use pointers to point to array elements, and efficient summing is achieved through self-increment pointers. Dynamically allocate array version: Dynamically allocate arrays and manage memory yourself, ensuring that allocated memory is freed to prevent memory leaks.

The char array stores character sequences in C language and is declared as char array_name[size]. The access element is passed through the subscript operator, and the element ends with the null terminator '\0', which represents the end point of the string. The C language provides a variety of string manipulation functions, such as strlen(), strcpy(), strcat() and strcmp().
