while循环
shoes2.c --计算多个不同鞋码对应的脚长
#include<stdio.h>
#define ADJUST 7.31 //字符常量
int main(void)
{
const double SCALE=0.333;
double shoe,foot;
printf("shoe size (men's) foot length\n");
shoe=3.0;
while(shoe<18.5) //while循环开始
{ //块开始
foot=SCALE*shoe+ADJUST;
printf("%10.1f %15.2f inches\n",shoe,foot);
shoe=shoe+1.0;
} //块结束
printf("if the shoe fits,wear it.\n");
getchar();
return 0;
}
5.25 乘法运算符
square.c（打印一个平方表）
#include<stdio.h>
int main(void)
{
int num=1;
while(num<21)
{
printf("%4d %6d\n",num,num*num);
num=num+1;
}
getchar();
return 0;
}
