printf用到的格式附加字符

#include<stdio.h>
/*
格式声明=%格式声明附加符 格式字符 %lf
*/
int main(){
/*
-12
a
abcd

-12 A

12.35
12.3
12.34500
12.345000*/
printf("%5d\n",-12);
printf("%5c\n",'a');
printf("%5s\n\n","abcd");

printf("%-5dA\n\n",-12);
printf("%7.2lf\n",12.345);
printf("%7.1lf\n",12.345);
printf("%.5lf\n",12.345);
printf("%-11lf\n",12.345);

return 0;
}