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();}