第一個簡單程序
#include<stdio.h>
?int?main()
{
?printf("hello,world\n");
?return?0;?
}
理解好這個程序后可以想想危尿，?用兩個函數(shù)構(gòu)成hello坏晦，world的程序
#include<stdio.h>
void?SayHello()
{
printf("hello,world\n");
}
int?main()
{
?SayHello();
?return?0;?
}
拓展一：
#include
int main()
{
?printf("?=====簡單計算器====?? \n");
?printf("-------------------------\n");
?printf("?1.加法?2.減法? \n");
?printf("?3.乘法?4.除法?\n");
?printf("?5.退出?\n");
?printf("-------------------------\n");
?printf("請選擇功能<1-5>?：\n\n\n");
?return 0;
}
拓展二：
#include
int main()
{
?int a,b,c;
?printf("請輸入購買物品的單價：");
?scanf("%d",&a);
?printf("請輸入購買物品的數(shù)量：");
?scanf("%d",&b);
?printf("實收：");
?scanf("%d",&c);
?printf("應找零：%d\n\n\n",c-a*b);
?printf("?=====購?物?清?單====?\n");
?printf("--------------------------\n");
?printf("單價?數(shù)量?合計?實收?找零\n");
?printf(" %d?%d?%d?%d?%d\n\n",a,b,c,a*b,c-a*b);
?printf("-------------------------\n");
?printf("XX超市歡迎您下次再來：\n\n\n");
}
