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楼主 |
发表于 2004-12-20 10:17:33
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这道题原本是这样的,请大家抓住重点讨论!谢谢!
- #include<stdio.h>
- #include<malloc.h>
- void foo(int a,char *b)
- {
- b = (char *)malloc(64);
- sprintf(b,"you are %d years old!\n",a);
- }
- int main(void)
- {
- char *f;
- foo(23,f);
- printf("%s\n",f);
- }
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