printf("%s! c is cool!\n","%s! c is cool!\n");
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#include <stdio.h>
#define FORMAT "%s! C is cool!\n"
int main(void)
{
int num=10;
printf(FORMAT,FORMAT);
return 0;
}
#define FORMAT "%s! C is cool!\n"
int main(void)
{
int num=10;
printf(FORMAT,FORMAT);
return 0;
}
输出为
%s!C is cool!
!C is cool!
!C is cool!
将#define FORMAT "%s!C is cool!\n"代入程序得到:printf(FORMAT,FORMAT);变为:printf("%s!C is cool!\n","%s!C is cool!\n");其中,后面的"%s!C is cool!\n"整体作为一个字符串被带入最左边的%s,所以输出%s!C is cool!(回车) //其实这是最右边的那个字符串!C is cool! //其实这是最左边的那个字符串除了%s后剩下的内容
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