可以,可以用_onexit 注册一个函数,它会在main 之后执行;
如果你需要加入一段在main退出后执行的代码,可以使用atexit()函数,注册一个函数。
语法:
#include <stdlib.h>
int atexit(void (*function")(void));
#include <stdlib.h>
#include <stdio.h>
void fn1( void ), fn2( void ), fn3( void ), fn4( void );
int main( void )
{
atexit( fn1 );
atexit( fn2 );
atexit( fn3 );
atexit( fn4 );
printf( "This is executed first.\n" );
}
void fn1()
{
printf( "next.\n" );
}
void fn2()
{
printf( "executed " );
}
void fn3()
{
printf( "is " );
}
void fn4()
{
printf( "This " );
}
结果:
This is executed first.
This is executed next.