UC知道关于指针函数的问题
来源：百度知道 编辑：UC知道 时间：2024/05/07 08:37:00
char *month_name(int n)
{
char *name[]=
{"illegal month","January",
"February","March","April","May","June",
"July" ,"August","September","October","November","December"
};
return (n<1||n>12) ? name[0]:name[n];
}
void main()
{
int i,k;
for(i=0;i<=12;i++)
{
printf("month=%s \n",month_name(i)); //为什么这里是 month_name(i)而不是*month_name???
}
getch();
}
{
char *name[]=
{"illegal month","January",
"February","March","April","May","June",
"July" ,"August","September","October","November","December"
};
return (n<1||n>12) ? name[0]:name[n];
}
void main()
{
int i,k;
for(i=0;i<=12;i++)
{
printf("month=%s \n",month_name(i)); //为什么这里是 month_name(i)而不是*month_name???
}
getch();
}
month_name是函数名，month_name(i)返回一个c字符串指针,prinft() 的"%s"对应的就是一个c字符串指针。*month_name(i)取返回字符串的第一个字符；*month_name无意义，不同编译器返回结果可能不同，由于函数名实际是指向函数程序入口的指针，*month_name可能返回函数的入口地址。