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#include <stdio.h>
#include <unistd.h>
#define FOO "foo"
int main(void)
{
if(!access(FOO, F_OK))
{
if(!unlink(FOO))
{

}
else
{
printf("remove %s failed\n", FOO);
}
}
else
{
printf("%s not existed\n", FOO);
}
return 0;


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Void test1()
{
    char string[10];
    char* str1="0123456789";
    strcpy(string, str1);
}
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Void test2()
{
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