about int main (int argc, char *argv[])

int main (intChar*Char*env[])     

1. int argc

Indicates how many arguments you have when you enter a command at the command line.

2. Char *argv[]

Represents the storage path for this executable file, the program variable.

His first element is argv[0] The executable file name (including path eg: "F:\VC\Ex1\Debug\Ex1.exe") generated for the compilation, starting with two elements (Argv[1]), which is the size of each parameter int argc representing the argv, which is the actual number of arguments + 1, where +1 is because Argv[0] is the compiled executable file name

3. *env: An Fu string array. Each element of env[] contains characters in the form of Envvar=value

4. When the compiler (Turbo c2.0) starts, it always passes these three parameters to the main () function, which can be described (or not stated) in the user program, and if some (or all) parameters are described, they become local variables of the main () subroutine.

about int main (int argc, char *argv[])