#include<stdio.h>
void butler
(void);
int main(void)
{
printf("I will summon the butler function.\n");
butler();
printf("Yes.Bring me some tea and writeable DVDs.\n");
return 0
}
void butler
(void)
{
printf("You rang,sir?\n");
}
1.无论main()在程序文件中处于什么位置,所有的程序都从main()开始执行
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