Ask for advice on the meaning of reserved words in Delphi

It's the kind of language syntax itself that defines what can't be treated as a program.

An English word used for variables.

For example, for while begin end, etc.

String copying, which returns n characters starting with the first few characters in the specified string.

It's a function, strcopy('abcde',2,3)='bcd', that is, starting with the second character, copy the next three

If it's dephi7

It is: tools ->editor options ->color

You can quickly set all fonts, or you can set a prima individually.

For text files, the reset process will open the file in read-only mode, and for typed and untyped files, the reset process will open the file in read-write mode.

These two functions tend to be in the form of the document itself.

The answer is that the reserved words of the language need to be case-sensitive. Therefore, both a and d are incorrect, and they should be: float and char respectively.

It is also wrong to have a space in the middle of the integer in option C, only B is correct, which is used to indicate that the data is signed, i.e. +-.

The reserved word is a name that is reserved and occupied by his norms, standards.

For example, the int,c language standard specifies that it is an integer. You can no longer define a name for yourself.

Reserved words are keywords Any programming language has keywords that mean that they can be used directly without calling any external files or modules, such as (if) or types such as int or other meanings such as (static), which have been explicitly defined by the compilation system and can no longer be used by variable names or function names.

A return value of the Windows 32 API function, which indicates that the function was successfully invoked without errors, you can see the first chapter of the Windows Core Programming book.

The function of the reallocmem process is to reallocate memory blocks of a specified size. The prototype of its function is defined as follows:

procedure reallocmem(var p: pointer; size: integer);

You can use freemem to free up the requested block of memory.