My_C-code

打印字符A
#include<stdio.h>
int main()
{
char ch = ‘A‘;
printf("%c\n",ch); //存放字符 char ch = ‘A‘
//%c--打印字符格式的数据
return 0;
}

打印整型年龄20
#include<stdio.h>
int main()
{
int Age = 20;
printf(“%d\n”,Age); //%d--打印整型十进制数据
return 0;
}
C中计算数据类型字节
#include<stdio.h>
int main();
{
printf("%d\n",sizeof(char)); //1byte
printf("%d\n",sizeof(short)); // 2
printf("%d\n",sizeof(int)); // 4
printf("%d\n",sizeof(long)); //4/8
//long 必须>=int . int = 4 所以Long4/8都行
//必要时用定义变量float防止报错，如：float weight = 44.2f;
printf("%d\n",sizeof(long long)); //8
printf("%d\n",sizeof(float)); //4
printf("%d\n",sizeof(double)); //8
return 0;
}

My_C-code

原文：https://blog.51cto.com/14943133/2537387