C语言学习笔记一
/* HELLO.C -- Hello, world */
#include "stdio.h"
#include "conio.h"
main()
{
float x = 3.2e10;
char a = 'a'; /*注意对字符的赋值是单引号*/
unsigned n;
int m;
int i = 10;
/*枚举类型是给每个元素从0到n来给每个元素赋值的,打印出来的东西是整形的
枚举类型的使用本身是为了某些逻辑结构的运算*/
enum day {Monday,Tuesday,Wednesday,Thursday,Friday,Sunday,Saturday};
enum day fir_day,end_day;
fir_day = Tuesday;
end_day = Sunday;
printf("%d\n",fir_day);
printf("char a = %d\n",a);
printf("char a = %c\n",a);
printf("Hello, world%10.5f\n",x);
/*-------注意C语言中变量的声明放在首部----------------------*/
?*从键盘输入数据,注意取的是变量的地址*/
scanf("%d",&m);
printf("Input word is %d",m);
n = i;
printf("%d\n",n);
getch();
}