1.字面常量
2.define
3.const
4.枚举
#include<stdio.h>
int main()
{
int num1=0;
int num2=0;
int sum =0;
scanf ("%d%d",&num1,&num2);
sum=num1+num2;
printf ("sum=%d\n",sum);
return 0;
}
#include<stdio.h>
int main()
{
const int num =4;//const-常属性，num:const修饰常量
printf ("%d\n",num);
return 0;
}
#include <stdio.h>
int main ()
{
char arr1[]="abc";//数组
char arr2 []={'a','b','c','\0'};
printf("%s\n",arr1);
printf("%s\n",arr2);
return 0;
}
#include <stdio.h>
int main ()
{
char arr1[]="abc";//3
char arr2 []={'a','b','c'};//6
printf("%d\n",strlen(arr1));
printf("%d\n",strlen(arr2));
return 0;
}
