《（信息技术基础第2版）第8章课后习题参考答案.docx》由会员分享，可在线阅读，更多相关《（信息技术基础第2版）第8章课后习题参考答案.docx（4页珍藏版）》请在第壹文秘上搜索。
1、第八章习题参考答案1)C2)B3)C4)B5)A6)A7)A8)B9)C10)B11)B12)A12)D13)D14)A15)*pma=*p16)efgh17)max(inta,intb)18)includevoidmain()voidinput(int*);voidmax_min_value(int*);voidoutput(int*);intnumber10;input(number);max_min_value(number);output(number);)voidinput(int*number)iti；printf(,input10numbers:)；for(i=0;i10;i+)
2、scanf(%d,8numberi);voidmax_min_value(int*number)int*maxz*minz*p,temp;max=min=number;for(p=number+l;p*max)max=p;elseif(*p*min)min=p;temp=numberO;numberO=*min;*min=temp;if(max=number)max=min;temp=number9;number9=*max;*max=temp;)voidoutput(int*number)int*p;printf(Nowztheyare:)；for(p=number;pnumber+10;p
3、+)printf(%d,p);printf(n);)19)#includevoidmain()intlength(char*p);intlen;charstr20;printf(inputstring:,);scanf(%s,str);Ien=Iengthfstr);printf(Thelengthofstringis%d.n,len);)intlength(char*p)intn;n=0;while(*p=,0)+;P+；)return(n);)20)#includevoidmain()voidavsco(float*,float*);voidavcourl(char(*)10zfloat*
4、);voidfali2(charcourse510zintnum,float*pscorezfloataver4);voidgood(charcourse510Jntnum4,float*pscore,floataver4);intij,*pnum,num4;floatscore45,aver4,*pscore,*paver;charcourse510,(*pcourse)10;printf(inputcourse:n);pcourse=course;for(i=0;i5;i+)scanf(%szcoursei);printf(inputNO.andscores:n);printf(,NO,)
5、;for(i=0;i5;i+)printf(,%szcoursei);printf(,n);pscore=8tscore00;pnum=&num0;for(i=0;i4;i+)scanf(%dzpnum+i);for(j=0;j5;j+)scanf(%f,pscore+5*i+j);)paver=&aver0;printf(nn);avsco(pscorezpaver);avcourl(pcoursezpscore);printf(,nn);fali2(pcourse,pnumzpscorezpaver);printf(nn);good(pcourse,pnum,pscore,paver);)
6、void avsco(float *pscorezfloat * paver)it ij;float sumzaverage;for (i=0;i4;i+)sum=0.0;for (j=0;j5;j+)sum=sum+(*(pscore+5*i+j);average=sum5;*(paver+i)=average;/求出每个学生的平均成绩/求出第一门课的平均成绩/找出2门课不及格的学生/找出成绩好的学生/求每个学生的平均成绩的函数累计每个学生的各科成绩计算平均成绩)voidavcourl(char(*pcourse)10zfloat*pscore)/求第一课程的平均成绩的函数inti;floa
7、tsumzaveragel;sum=0.0;for(i=0;i4;i+)sum=sum+(*(pscore+5*i);累计每个学生的得分averagel=sum/4;计算平均成绩printf(coursel:%saveragescore:%7.2fn,*pcourse,averagel);)voidfali2(charcourse510Jntnumzfloat*pscore,floataver4)/找两门以上课程不及格的学生的函数intij,kjabel;printf(=Studentwhoisfailintwocourses=n);printf(NO.);for(i=0;i5;i+)prin
8、tf(%lls,coursei);printf(averagen);for(i=0;i4;i+)label=O;for(j=O;j5;j+)if(*(pscore+5*i+j)=2)printf(%d,numi);for(k=O;k5;k+)printf(%11.2f,*(pscore+5*i+k);printf(,%11.2fn,averi);)voidgood(charcourse510Jntnum4,float*pscore,floataver4)/找成绩优秀学生(各门85以上或平均90分以上)的函数itij,k,n;printf(=Studentswhosescoreisgood=n);printf(NO.);for(i=0;i5;i+)printf(%lls,coursei);printf(averagen);for(i=0;i4;i+)n=0;for(j=0;j85.0)n+;if(n=5)11(averi=90)printf(%dznumi);for(k=0;k5;k+)printf(%11.2f,(pscore+5*i+k);printf(%11.2fn,averi);)
