/* 使用转换说明 */
#include <stdio.h>
#define PI 3.141593
int main(void)
{
    int number = 7;
    float pies = 12.75;
    int cost = 7800;

    printf("The %d contestants ate %f berry pies.\n", number, pies);
    printf("The value of pi is %f.\n",PI);
    printf("Farewell! Thou art too dear for my possessing,\n");
    printf("%c%d\n", '$', 2 * cost);

    return 0;
}
/* printf 的转换说明修饰符有很多：标记、数字、.数字、
h、hh、j、l、ll、L、t、z，试试记住它们的意思*/
/* 标记也有很多种，比如：-、+、空格、#、0*,P84有写 */