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#include <stdio.h>
static int internalVar = 20;
void printInternalVar() {
printf("internalVar: %d\n", internalVar);
}
void modifyInternalVar(int value) {
internalVar = value;
}
/*int main()
{
printf("main_internalVar: %d\n", internalVar);
internalVar =300;
printf("main_internalVar: %d\n", internalVar);
return 0;
}*/
#include <stdio.h>
// μΈλΆ νμΌμμ λ΄λΆ μ°κ²° λ³μλ₯Ό μ§μ μ°Έμ‘°ν μ μμ
//extern int internalVAr; // μ΄λ κ² νλ©΄ λ§ν¬ μ€λ₯ λ°μ
extern void printInternalVar();
extern void modifyInternalVar(int value);
int main() {
printInternalVar(); //internalVar: 20
modifyInternalVar(50);
printInternalVar(); //internalVar: 50
return 0;
}
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