C Tutorial/Language/static Variables — различия между версиями
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(нет различий)
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Текущая версия на 10:32, 25 мая 2010
Static variable
#include <stdio.h>
int g = 10;
main(){
int i =0;
void f1();
f1();
printf(" after first call \n");
f1();
printf("after second call \n");
f1();
printf("after third call \n");
}
void f1()
{
static int k=0;
int j = 10;
printf("value of k %d j %d",k,j);
k=k+10;
}value of k 0 j 10 after first call
value of k 10 j 10after second call
value of k 20 j 10after third call
Static versus automatic variables
#include <stdio.h>
void test1(void){
int count = 0;
printf("\ntest1 count = %d ", ++count );
}
void test2(void){
static int count = 0;
printf("\ntest2 count = %d ", ++count );
}
int main(void)
{
int i;
for(i = 0; i < 5; i++ )
{
test1();
test2();
}
return 0;
}test1 count = 1
test2 count = 1
test1 count = 1
test2 count = 2
test1 count = 1
test2 count = 3
test1 count = 1
test2 count = 4
test1 count = 1
test2 count = 5
