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catalogue 1. What is the pointer? 2. Pointer and pointer type 2.1} pointer + integer 2.2 pointer dereference 3. Field pointer 3.1} cause of formation 3.1.1} pointer not initialized 3.1.2 pointer cross-border access 3.1.3 # release of space pointed by pointer 3.2 # how to avoid wild pointer 4. Pointer operation 4.1 pointer + - intege ...

preface Pointer is not only the key point of c language, but also the difficulty of c language. Generally, we won't make mistakes in the simplest pointer variables. We can encounter pointer array, array pointer, two-dimensional pointer, three-dimensional pointer, function pointer and void pointer. Sometimes it gets confused. Today, I spend a d ...

Title details: Common scoring method for 1073 multiple choice questions (20 points) Correcting multiple-choice questions is a troublesome thing. There are many different scoring methods. One of the most common scoring methods is: if the examinee selects some correct options and does not select any wrong options, he will get a 50% score; If a c ...

Linear table Sequential list and linked list Abstract data structure - data combination and operation set Header node: the first node that does not store data elements First element node: the first node where data elements are stored 1, Definition of linear table A finite sequence of zero or more data elements There is order between elem ...

1. Write in front Today is the seventh day of the lunar new year. After a few days of new year's greetings, I have begun to update my C language series. The process of a Java programmer learning C language. As the saying goes, learning a new language and an introductory book are more important. Tan Haoqiang is the most important in China. Bein ...

Detailed explanation of the usage of C language fread and fwrite (read and write files in the form of data blocks) The fgets() function is "extreme", and can only "read one line of content in the file" at most at a time, because fgtes() ends reading when it encounters a "newline character". If you want to read ...

catalogue Header file and macro definition to be referenced in advance Other data structures needed (chain stack and chain queue) The structure of the binary tree used (binary linked list) Its basic operation interface basic operation Create an empty binary tree Create a binary tree, where the value of the root node is e, and L and R ar ...

1. Hardware The hardware schematic diagram is as follows: The hardware schematic diagram is the hardware circuit of punctual atom stm32zet6 elite version. Different development boards should be based on the actual circuit. First of all, to make the led light up, there must be a voltage difference between the two sides of the led lamp. As can b ...

Because in the school is really too idle, so wrote an expression evaluation of the C language program, hope big guys can correct. Basic idea: Just like putting an elephant in a refrigerator, we need to evaluate the expression in three steps. Enter an infix expression (the expression we usually see)Convert infix expression to suffix express ...

catalogue 1. String function 1.strcpy application and Implementation  2. Application and implementation of strcat  3. Application and implementation of StrCmp 4. STR application and Implementation 1. String function When it comes to string functions, I believe they are not unfamiliar. Today, we mainly understand the applicat ...