C++课程设计……一元多项式简单的计算器

1、#include#include#include#includeusing namespace std;class xiang; ostream &operator(ostream &os,xiang &t); xiang operator+(const xiang &a,const xiang &b); xiang operator-(const xiang &n,const xiang &m);class xiangpublic: float coef; /系数 int expn; /指数friend ostream &operator(ostream &os,xiang &t); fri

2、end xiang operator+(const xiang &a,const xiang &b); friend xiang operator-(const xiang &n,const xiang &m);ostream &operator0) ost.coefat.expn; elseif(t.coef0) ost.coefat.expn;elseos0;return os;xiang operator+(const xiang &a,const xiang &b) /重载加法运算 xiang t;if(a.expn=b.expn)t.coef=a.coef+b.coef;t.expn

3、=a.expn;return t;xiang operator-(const xiang &n,const xiang &m) /重载减法运算 xiang t;if(n.expn=m.expn)t.coef=n.coef-m.coef;t.expn=n.expn;return t;void f1()cout=欢迎进行多项式运算=endl;cout*endl;cout想进行加法运算，请输入1endl; cout想进行减法运算，请输入2endl; cout想结束运算，请输入9endl;cout如果想以上清除运算，请输入0endl;cout*endl;void f3(int n,xiang *A,i

4、nt m,xiang *B) /减法运算int k;xiang C10;for(k=1;k=n;k+)Ck=Ak; for(int j=1;j=m;j+)int g=0; for(int i=1;i=n;i+) if(Ai.expn=Bj.expn) Ci=Ai-Bj; else g+; if(g=n) Ck.coef=-Bj.coef; Ck.expn=Bj.expn; k+; for(int i=1;ik-1;i+)cout0)cout+;coutCk-1;coutendl;void f2(int n,xiang *A,int m,xiang *B) /加法运算int k;xiang C1

5、0;for(k=1;k=n;k+)Ck=Ak;for(int j=1;j=m;j+)int g=0; for(int i=1;i=n;i+)if(Ai.expn=Bj.expn) Ci=Ai+Bj;else g+; if(g=n) Ck+=Bj;for(int i=1;ik-1;i+)cout0)cout+;coutCk-1;coutendl;void main() f1();K:int n,i,m,j;coutn;xiang A10,B10,C20; cout请依次输入各项的系数与指数，并回车endl;for(i=1;ic; int d;cind; Ck.coef=Ai.coef=c;Ck.expn=Ai.expn=d;k+; cout请输入另一个多项式的项数m=m; cout请依次输入各项的系数与指数，并回车endl; for(j=1;jc; int d;cind; Bj.coef=c;Bj.expn=d;int x;for(;) coutx;switch(x) case 1:f2(n,A,m,B);break; /加法 case 2:f3(