中国地质大学C++指导书代码大全（精品）

1、第一章实习任务一#include int main()std:couti love c+ very much!std:endl;std:coutprogramming c+ is easy and interesting.n;return 0;实习任务二#include int main()int a=5,b=5;std:coutthe sum is: a+bstd:endl;return 0;实习任务三#include double main() const double pi = 3 double r;std:cinr;double s = pi * r * r;

2、double c = 2 * pi * r;std:couts=sstd:endl;std:coutc=cstd:endl;return 0;课后练习#include int getarea( int width, int height );int main()int area=0;int width=5, height=6;area = getarea( width,height );std:coutarea:areastd:endl;return 0;int getarea( int width, int height )return width * height;第二章实习任务一（1）#

3、includeint main() double numone=2.5; int numtwo=3; double quotient=numone/2; std:coutquotient:quotientstd:endl; quotient=numtwo/2; std:coutquotient:quotientstd:endl; return 0;实习任务一（2）#includeint main() int number=103; int digit,tens,hundreds; digit=number%10; tens=(number/10)%10; hundreds=(number/10

4、0)%10; std:couthundreds:hundreds,tens:tens,digit:digitstd:endl; return 0;实习任务二#includeint main()int grade;std:coutgrade;if(grade100|grade0) std:couttry againn;else if(grade=85)std:coutexcellentn;else if(70=grade&grade85)std:coutpassn; elsestd:coutfailn; return 0;实习任务三#includefloat main() float salar

5、y; const int s=3500; std:cout0):; std:cinsalary; if(salary=0&salary=3500) std:coutthe tax is0std:endl; else if(salary=5000) std:coutthe tax is(salary-s)*0.03std:endl; else if(salary=8000) std:coutthe tax is(salary-s)*0.10-105std:endl; else if(salary=12500) std:coutthe tax is(salary-s)*0.20-555std:en

6、dl; else if(salary=38500) std:coutthe tax is(salary-s)*0.25-1005std:endl; else if(salary=58500) std:coutthe tax is(salary-s)*0.30-2755std:endl; else if(salary=83500) std:coutthe tax is(salary-s)*0.35-550583500) std:coutthe tax is(salary-s)*0.45-13505std:endl; return 0;课后练习#includeint main() int num1

7、,num2,result; char op; std:coutnum1; std:cinop; std:cinnum2; if(op=+) result=num1+num2; else if(op=-) result=num1-num2; else if(op=*) result=num1*num2; else if(op=/) result=result=num1/num2; else std:couterror input!n; return 0; std:coutnum1opnum2=resultn; return 0;第三章实习任务一（1）#include void checkweig

8、ht(int height,int weight);int main()int height,weight;std:coutheight;std:coutweight;checkweight(height,weight);return 0;void checkweight(int height,int weight)int idealweight=height-105;if(idealweight=weight) std:coutweight)std:coutslim!n;elsestd:coutfatty!n;实习任务一（2）#include bool check(int score,int

9、 baseline=60);int main()int score;std:coutscore;if(check(score)=true)std:coutpassed!n;elsestd:coutfailed!n;if(check(score,70)=true)std:coutpassed!n;elsestd:cout=baseline)return true;return false;实习任务二#include int max(int a,int b,int c);double max(double a,double b,double c);char max(char a,char b,ch

10、ar c);int main()int ia,ib,ic;char ca,cb,cc;double da,db,dc;std:coutiaibic;std:coutmax of int:max(ia,ib,ic)std:endl;std:coutcacbcc;std:coutmax of char:max(ca,cb,cc)std:endl;std:coutdadbdc;std:coutmax of double:max(da,db,dc)b?a:b)c?(ab?a:b):c;double max(double a,double b,double c)double d;d=ab?a:b;d=d

11、c?d:c;return d;char max(char a,char b,char c)return (ab?a:b)c?(ab?a:b):c;实习任务三#include #include double getarea(double a,double b,double c);int main()double a,b,c;std:coutabc;double area=getarea(a,b,c);std:coutarea:sqrt(area)std:endl;return 0;double getarea(double a,double b,double c)double s,k;s=(a+

12、b+c)/2;k=s*(s-a)*(s-b)*(s-c);return sqrt(k);课后练习一#includeint menu();int main()int num1=20,num2=6;int choice;int result;choice=menu();if(choice=1)result=num1+num2;else if(choice=2)result=num1-num2;else if(choice=3)result=num1*num2;else if(choice=4)result=num1/num2;else/非预期情况,通过return语句直接结束程序return 0;

13、std:coutresult:resultstd:endl;return 0;int menu()int choice;std:cout1)add two numbern;std:cout2)sub two numbern;std:cout3)multiply two numbern;std:cout4)divide two numbern;std:cout0)quitn;std:coutchoice;return choice; 课后练习二#include#includeusing namespace std;double getarea(double a,double b,double c

14、);bool validate(double a,double b,double c);int main()double a,b,c;coutabc;bool isvalidate;isvalidate=validate(a,b,c);if(isvalidate=false)coutisvalidate trianglen;return 0;double area;area=getarea(a,b,c);coutthe area is:area0)&(b0)&(c0)if(dc)&(eb)&(fa)return true;elsereturn false;return false;课后练习三#

15、include#includeenum triangletypeinvalid,normal,isosceles,equilateral;triangletype checktriangle(double a,double b,double c);bool validate(double a,double b,double c);int main()double a,b,c;std:coutabc;triangletype type=checktriangle(a,b,c);if (type=invalid)std:coutinvalid triangle!n;else if (type=no

16、rmal)std:coutnormal triangle!n;else if (type=isosceles)std:coutisosceles triangle!n;else if (type=equilateral)std:cout0)&(b0)&(c0)if(dc)&(eb)&(fa)return true;elsereturn false;triangletype checktriangle(double a,double b,double c)bool triangle;triangle = validate(a,b,c);if (triangle=false)return inva

17、lid;else if (a=b) if (b=c) return equilateral;else return isosceles;else if (b=c)return isosceles;else if (a=c)return isosceles;else return normal;第四章实习任务一（1）#includeint main()int score;std:coutscore;char level;switch(score/10)case 10:case 9:level=a; break;case 8:level=b; break;case 7:level=c; break

18、;case 6:level=d; break;default:level=e; break;std:coutlevel:levelstd:endl;return 0;实习任务一（2）#includeint gcd(int m,int n);int main()int m,n;int counter=0;while(counter3)std:coutmn;int divisor=gcd(m,n);std:coutcommon divisor of mandnis:divisorm)c=m;m=n;n=c;while(n!=0)d=m%n;m=n;n=d;return m;实习任务二#includ

19、e#includebool isprime(int num);int main()int counter=0;int num=2;while(counter100)if(isprime(num)std:coutnum ;counter+;num+;return 0;bool isprime(int num)bool flag=true;int r=static_cast(sqrt(num);for(int i=2; i=r;i+)if(num%i=0)break;if(i=r) flag=false;else flag=true;return flag;实习任务三#includeint mai

20、n() int big,mid,small; std:coutbigtmidtsmalln; for(big=0;big=33;big+) for(mid=0;mid=50;mid+) for(small=0;small=100;small+) if(big+mid+small=100 & 3*big+2*mid+0.5*small=100) std:coutbigtmidtsmalln; return 0;课后练习一#include #include using namespace std;int gcd(int m, int n)if(n = 0)return m;return gcd(n

21、, m % n);int main()int a, b;coutab;couta和b的最大公约数是:gcd(a, b)endl;return 0;课后练习二#include #include int menu();bool answerquestion(int choice,int num1,int num2);int main()int questionnum=0;int correctnum=0; srand(unsigned)time(null);/设置随机数序列的种子 while(questionnum10)int choice=menu();if(choice4) continue;

22、if(choice=0)break;int num1,num2;num1=rand()%90+10;num2=rand()%90+10;if(answerquestion(choice,num1,num2)=true)correctnum+;questionnum+;if(questionnum=0)std:coutyou didnt answer any question!n;elsestd:coutanswer questions:questionnum,correct:correctnumn;return 0;int menu()int choice;std:cout1)add two

23、numbern; std:cout2)sub two numbern;std:cout3)multiply two numbern;std:cout4)divided two numbern;std:cout0)quitn;std:coutchoice;return choice;bool answerquestion(int choice,int num1,int num2)int result,answer;char operation;if(choice=2&num1num2)int temp=num1;num1=num2;num2=temp;switch(choice)case 1:r

24、esult=num1+num2;operation=+;break;case 2: result=num1-num2;operation=-;break;case 3:result=num1*num2;operation=*;break;case4:num1*=num2;result = num1/num2;operation=/;break;std:coutnum1operationnum2answer;if(result=answer)std:coutgreat! your answer is absolutely correct!n;return true;std:coutsorry!n

25、;return false;课后练习三#include#include#includeint main()srand(unsigned)time(null);int num,count;for(count=1;count=100;count+)num=rand()%10000+1;std:coutstd:setw(8)num;if(count % 5=0)std:coutn;return 0;实习任务一（1）#includeint main()char word50;std:coutword;for(int i=0;wordi!=0;+i)if(wordi=a & wordi=z)wordi-

26、=32;std:coutupper case:wordstd:endl;return 0;实习任务一（2）#includeint main()char word50;std:coutword;int pos=0;for(int i=0;wordi!=0;+i)if(wordi9)wordpos=wordi;+pos;wordpos=0;std:coutresult:wordstd:endl;return 0;实习任务二（1）#includeint main()const int course_num=5;int scorescourse_num=80,75,92,84,68;double av

27、escore=0;for(int i=0; icourse_num;i+)avescore+=scoresi;avescore=avescore/course_num;std:coutaverage score:avescoren;return 0;实习任务二（2）#includeint main()const int course_num=5;int scorescourse_num;double avescore=0;int i;for(i=0; icourse_num;i+)std:coutinput scoresi+1scoresi;for(i=0; icourse_num;i+)av

28、escore+=scoresi;avescore=avescore/course_num;std:coutaverage score:avescoren;return 0;实习任务三#includeint main()const int arraysize=5;int arrayarraysize;int temp;int i,j;for(i=0;iarraysize;i+)std:coutenter array iarrayi;for(i=0,j=arraysize-1;ij;i+,j-)temp=arrayi;arrayi=arrayj;arrayj=temp;for(i=0;iarray

29、size;i+)std:coutarrayi ;std:coutstd:endl;return 0;课后练习一#include int scoretogradepoint(int score);int main()const int coursenum=5;int creditcoursenum=4,4,3,2,4;int scorecoursenum;int gradepointcoursenum;double avegp=0;int i;for(i=0;icoursenum;i+)std:coutenter scoreiscorei;gradepointi=scoretogradepoin

30、t(scorei);double sum1=0.0, sum2=0.0;for(i=0;icoursenum;i+)sum1+=gradepointi*crediti;sum2+=crediti;avegp=sum1/sum2;std:coutthe avegp is :avegpn;return 0;int scoretogradepoint(int gradepoint)switch(gradepoint/10)case 10:case 9: gradepoint=4; break;case 8: gradepoint=3; break;case 7: gradepoint=2; brea

31、k;case 6: gradepoint=1; break;default: gradepoint=0; break;return gradepoint;课后练习二#includeusing namespace std;int main()const int size = 5;int arraysize, i, j;for(i=0;isize;i+)cout输入元素iarrayi;cout排序前的数组:endl;for(i=0;isize;i+)coutarrayit;coutendl;for(i=0;isize-1;i+)int pos=i;for(j=i+1;jarrayj)pos=j;/

32、j循环int tem;tem=arraypos;arraypos=arrayi;arrayi=tem;/i循环cout排序前的数组:endl;for(i=0;isize;i+)coutarrayit;return 0;课后练习三#include#includeusing namespace std;bool isvowel(char letter);int main()string word, result;cout请输入字符串:word)if(isvowel(word0)result= word + ay;else result=word.substr(1)+word0+ay;coutres

33、ultendl;return 0;bool isvowel(char letter)if(letter=a | letter=e | letter=i | letter=o | letter=u)return true;elsereturn false;实习任务一（1）#includeclass tempconvertpublic:void settempcelsius(double temp);void settempfahrenheit(double temp);double gettempcelsius();double gettempfahrenheit();private:doubl

34、e tempcelsius;double celsiustofahrenheit(double tempcelsius);double fahrenheittocelsius(double tempfahrenheit);void tempconvert:settempcelsius(double temp)tempcelsius=temp;void tempconvert:settempfahrenheit(double temp)tempcelsius=fahrenheittocelsius(temp);double tempconvert:gettempcelsius()return t

35、empcelsius;double tempconvert:gettempfahrenheit()return celsiustofahrenheit(tempcelsius);double tempconvert:celsiustofahrenheit(double tempcelsius)return tempcelsius*9.0/5.0+32;double tempconvert:fahrenheittocelsius(double tempfahrenheit)return 5.0/9.0*(tempfahrenheit-32);int main()tempconvert conve

36、rtor;double temp;std:couttemp;convertor.settempcelsius(temp);std:coutcelsius: convertor.gettempcelsius()n;std:coutfahrenheit: convertor.gettempfahrenheit()n;std:couttemp;convertor.settempfahrenheit(temp);std:coutcelsius: convertor.gettempcelsius()n;std:coutfahrenheit: convertor.gettempfahrenheit()n;

37、return 0;实习任务一（2）#includeclass tempconvertpublic:void settempcelsius(double temp);void settempfahrenheit(double temp);double gettempcelsius();double gettempfahrenheit();private:double tempfahrenheit;double celsiustofahrenheit(double tempcelsius);double fahrenheittocelsius(double tempfahrenheit);void

38、 tempconvert:settempcelsius(double temp)tempfahrenheit=celsiustofahrenheit(temp);void tempconvert:settempfahrenheit(double temp)tempfahrenheit=temp;double tempconvert:gettempcelsius()return fahrenheittocelsius(tempfahrenheit);double tempconvert:gettempfahrenheit()return tempfahrenheit;double tempcon

39、vert:celsiustofahrenheit(double tempcelsius)return tempcelsius*9.0/5.0+32;double tempconvert:fahrenheittocelsius(double tempfahrenheit)return 5.0/9.0*(tempfahrenheit-32);int main()tempconvert convertor;double temp;std:couttemp;convertor.settempcelsius(temp);std:coutcelsius: convertor.gettempcelsius(

40、)n;std:coutfahrenheit: convertor.gettempfahrenheit()n;std:couttemp;convertor.settempfahrenheit(temp);std:coutcelsius: convertor.gettempcelsius()n;std:coutfahrenheit: convertor.gettempfahrenheit()n;return 0;实习任务二#includeusing namespace std;class fractionpublic:fraction();fraction(int n);fraction(int n, int d);void setvalue(int n, int d);int getnum();int getden();double getdoublevalue();void output();private:int num;int den;fraction:fraction()num = 0;den = 1;fraction: