零基础学习c语言习题答案

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1、第一篇C语言基础第1章1.voidmain(void){printf(“HelloWorld!”);}第2章1.voidmain(void){printf("你好，C语言！");}2.voidmain(void){printf("");printf("");printf("");printf("");printf("");}3.voidmain(void){printf("1");printf("2");printf("3");printf("4");printf("5"

2、);}第3章1.#includeintsum1(inta,intb);voidmain(void){inta=10,b=20;inty=sum1(a,b);printf("theaverageis%d",y);}intsum1(inta,intb)第一篇C语言基础{returna+b;}2.错误是代码声明的语句intadd(inta,intb)后面没带分号。3.#include#include"sum1.txt"voidmain(void){inta=10,b=20;inty=s

3、um1(a,b);printf("theaverageis%d",y);}其中sum1.txt的内容如下intsum1(inta,intb){returna+b;}第4章1.#includevoidmain(void){intx;x=100;x=x+102;x=x+104;x=x+106;x=x+108;x=x+110;printf("100+102+104+106+108+110=%d",x);}2.#includevoidmain(void){floatf_radius=

4、3.0;/*半径*/floatf_area=3.1415926*f_radius*f_radius;/*计算圆面积*/printf("圆面积=%f",f_area);}第5章第一篇C语言基础1.#includevoidmain(void){printf("+%20s+%5s+","--------------------","------------");printf("

5、%20s

6、%5s

7、","姓名","年龄");printf("+%20s+%5s+","--------------

8、------","------------");printf("

9、%20s

10、%5d

11、","朱莉",22);printf("

12、%20s

13、%5d

14、","李思思",28);printf("

15、%20s

16、%5d

17、","王小明",23);printf("

18、%20s

19、%5d

20、","凡尘",24);printf("+%20s+%5d+","--------------------","------------");}2.#includevoidmain(void){intnum=0;printf(

21、"输入身份证号:");scanf("%*14d%4d",&num);printf("后4位是:%4d",num);}第6章1.mx=0m

22、

23、y-1>x=1!(y-1>x)=12.最后的输出结果是4,但a的值是0a的值是16a与b比较的结果=0第7章#include#includevoidmain(void){inttotal=0;printf("请输入一个分数：");scanf("%d",&total);if(total<60){printf("不及格！"

24、);第一篇C语言基础}else{printf("及格！");}getch();}第8章1.100,100,1002.10第9章1.**2.a=0,b=4第10章1.少了#include语句2.#includedoublemoney(intx);voidmain(){intmymoney;printf("inputamoney:");scanf("%d",&mymoney);printf("thelastmoneyis%.2f",money(mymoney));}doublemoney

25、(intx){doublelastmoney=x+x*3.10/100/12*3;/*3.10ÊÇ3¸öÔ´æ¿îµÄÀûÏ¢*/returnlastmoney;}第11章1.#includevoidmain(){第一篇C语言基础chars[]="abcdefgh";inti;for(i=0;i<8;i++)p