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int *p;//È«¾Ö±äÁ¿

p = malloc(size);

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int *p;//È«¾Ö±äÁ¿

p = malloc(size);

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#include <stdio.h>

int Mem[100];
int uselen;

int main()
{
uselen = 0;

ʹÓÃÄÚ´æÔòMem[uselen++]

}

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#include <stdio.h>
#include <stdlib.h>

char *gp = NULL;

int f1()
{
printf("in f1 before\n",gp);
gp = (char *)malloc(1000);
printf("in f1 end\n",gp);
return 0;
}
int f2()
{
printf("in f2 before\n",gp);
printf("in f2 gp is %s\n",gp);


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