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apple=sizeof(int)*p ; apple=sizeof * p;
j= (char (*)[20])malloc(20);
int const * grape; Óë int * const grape; µÄÇø±ð
typedef void (*ptr_to_func)(int);
void (*signal(int sig,void (*func)(int )))(int );
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switch(i)
{
case 1:printf("case 1 ! \n");
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Îå: j= (char (*)[20])malloc(20); //ÔõôÑù?
Áù: result=*x/*y ; //³ö´í?why ?
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