Question

写一个main函数,分别定义int ,short ,long ,float ,double ,char类型的变量并赋值然后输出这6个变量的值

随意赋值 表示刚学不到一礼拜 老师留的homework

Answer 1

#include<stdio.h>
int main()
{
int a=1;
short b=2;
long c=3;
float f=12.34;
double d=3.1415926;
char ch='A';
printf("a=%d\nb=%d\nc=%d\nf=%f\nd=%lf\nch=%c\n",a,b,c,f,d,ch);

return 0;
}
输出为：
a=1
b=2
c=3
f=12.340000
d=3.141593
ch=A

Answer 2

float 4 double 8 int 2 long 4 char 1 long a[5]=20

Answer 3

#include "stdio.h"
int main()
{
printf("char有%d字节\n",sizeof(char));
printf("short有%d字节\n",sizeof(short));
printf("int有%d字节\n",sizeof(int));
printf("long有%d字节\n",sizeof(long));
printf("long long有%d字节\n",sizeof(_int64));
printf("float有%d字节\n",sizeof(float));
printf("double有%d字节\n",sizeof(double));
printf("long double有%d字节\n",sizeof(long double));
return 0;
}