C Primer Plus（第六版）第三章 编程练习答案

Posted 2021-08-16 水番正文

 前言：由于不是太复杂，第三章的程序我就全部集成在一个程序了，仅供参考，新手勿喷。

(原地copy，xixi~

CH03 Code answer:

#include<stdio.h>
int main()
{
	printf("3.11.1\\n");
	
	printf("\\n");
	
	printf("3.11.2\\n");
	int asc_a;
	printf("请输入一个ASCII码值:");
	scanf("%d",&asc_a);				//scanf数据,不要输入其他字符要不然用不了 
	printf("%c\\n",asc_a); 
	printf("\\n");
	
	printf("3.11.3\\n");
	printf("\\aStartled by the sudden sound, Sally shouted\\n \\"By the Great Pumpkin, what was that!\\"\\n");
	printf("\\n");
	
	printf("3.11.4\\n");
	float float_a;
	printf("Enter a floating-point value:");
	scanf("%f",&float_a);
	printf("\\nfixed-point notation:%f\\n",float_a);
	printf("exponential notation:%e\\n",float_a);
	printf("p notation:%a\\n",float_a);
	printf("\\n");
	
	printf("3.11.5\\n");
	float year_second = 3.156e7;
	int year;
	printf("请输入年龄");
	scanf("%d",&year);
	printf("你活了%e\\n",year*year_second);
	printf("\\n");
	
	printf("3.11.6\\n");
	float water = 3.0e-23;
	int kua_tuo_g = 950;
	int kua_tuo;
	printf("请输入夸脱水量:");
	scanf("%d",&kua_tuo);
	printf("水分子为:%e\\n",kua_tuo*kua_tuo_g/water); 
	printf("\\n");
	
	printf("3.11.7\\n");
	float ying_cun = 2.54;
	float tall;
	printf("请输入你的身高:");
	scanf("%f",&tall);							//输出%d就会数据不对应 
	printf("你身高为%f英寸\\n",tall/ying_cun);
	printf("\\n");
	
	printf("3.11.8\\n");
	float bei_count;
	printf("请输入杯数");
	scanf("%f",&bei_count);
	printf("需要要品脱:%f\\n",bei_count/2); 
	printf("需要要GUSI:%f\\n",bei_count*8);
	printf("需要要汤勺:%f\\n",bei_count*8*2);
	printf("需要要茶勺:%f\\n",bei_count*8*2*3);
	printf("\\n");
	
 }