C语言今日练习试题（主要练习英文阅读能力）

刚刚学习C语言 ，就做了三道简单的试题，主要是练习英文阅读能力。

Exercise 1

Write a program to compute the area and perimeter of a rectangle with a

width of 3 inches and a height of 5 inches.

Exercise 2

Write a program that deliberately makes the following mistakes:

Prints a floating-point number using the %d conversion.

Prints an integer using the %f conversion.

Prints a character using the %d conversion

Exercise 3

使用一个枚举类型，表达：北京、上海、广州三个城市，然后输出他们的值。

#include <stdio.h>

/*int main(void){

double a;

double b;

printf("请输入矩形的长：");

scanf("%lf",&a);

printf("请输入矩形的宽：");

scanf("%lf",&b);

printf("矩形的面积为：%lf\n",a*b);

printf("矩形的周长为：%lf\n",(a+b)*2);

return 0;

}*/

/*int main(void){

double i = 123.45;

int j = 678;

char k = 'A';

printf("double类型：%d\n",i);

printf("int类型：%f\n",j);

printf("char类型：%d\n",k);

return 0;

}*/

/*int main(void){

enum city{beijing,shanghai,guangzhou};

printf("北京：%d\n",beijing);

printf("上海：%d\n",shanghai);

printf("广州：%d\n",guangzhou);

return 0;

}*/