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#include <stdio.h>
int add(int a,int b)
{
     int c=0;
     c=a+b;
     return c;
}
int main(void)
{
     int x=0;
     int y=3;
     int z=4;
     x=add(y,z);
     return 0;
}
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addº¯Êý
{
0040D750   push        ebp
//°Ñmainº¯ÊýµÄebpѹջ£¬ebp=1000,esp=896
0040D751   mov         ebp,esp
//µÃµ½“Дջ»ùÖ·£¬ÕâÀïµÄеÄÒâ˼ÊÇÿ¸öº¯Êý·ÃÎÊÊôÓÚ×Ô¼ºµÄÒ»¿éÕ»ÇøÓò£¬ÆäʵÊÇÏàÁÚµÄÄÚ´æÇøÓò£¬»òÕß˵ջֻÓÐÒ»¸ö¡£ebp=896£¬esp=896
0040D753   sub         esp,44h
//ebp=896£¬esp=828
0040D756   push        ebx
0040D757   push        esi
0040D758   push        edi
//ebp=896£¬esp=816
0040D759   lea         edi,[ebp-44h]
0040D75C   mov         ecx,11h
0040D761   mov         eax,0CCCCCCCCh
0040D766   rep stos    dword ptr [edi]
//³õʼ»¯ÄÚ²¿±äÁ¿Çø
5:        int c=0;
0040D768   mov         dword ptr [ebp-4],0
//c·ÅÈë“Дջ»ùÖ·
6:        c=a+b;
0040D76F   mov         eax,dword ptr [ebp+8]
0040D772   add    &n


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void GetMemory(char *p)
{
// ´«µÝ½øÀ´µÄµÄֵʹµÃ*p==NULL
// ÕâÀïÐ޸ĵÄÊÇÕâ¸öº¯ÊýÄÚµÄÁÙʱָÕë±äÁ¿pµÄÖµ
p = (char *)malloc(100);
}
void Test(void)
{
char *str = NULL;
// ´«µÝ½øÈ¥µÄÊÇstrµÄÖµNULL
GetMemory(str);
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#include <iostream>
using namespace std;
void Out(int* p)
{
    int j = 11;
    p = &j;
    *p = 12;
    cout<<*p<<endl;
}
int main(int argc,char*argv[])
{
&n ......
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