复数类的设计与实现毕业论文

#include#include#include#include#include#include#define EPS 1e-5 //定义精度常数using namespace std; //使用标准空间命名stdnamespace NameCComplex //定义命名空间NameCComplex{class CComplex ////定义一个CComplex类{private:double Real,Image;public:CComplex(double real=0,double image=0) //构造函数{Real=real;Image=image;}friend istream & operator>>(istream &is,CComplex &com); //重载输入friend ostream & operator<<(ostream &os,CComplex &com); //重载输出CComplex operator+(CComplex &com); //加法重载CComplex operator-(CComplex &com); //减法重载CComplex operator*(CComplex &com); //乘法重载CComplex operator+=(CComplex &com); //加法赋值重载CComplex operator-=(CComplex &com); //减法赋值重载CComplex operator*=(CComplex &com); //乘法赋值重载CComplex operator++(); //自加CComplex operator--(); //自减double mod(void); //求复数的模int operator>(CComplex &com);int operator<(CComplex &com);int operator!=(CComplex &com);int operator==(CComplex &com);};struct User //用户结构体类型定义{char szName[20]; //用户名int nTime; //使用次数int nTest; //测试次数double alAve; //平均成绩int nAdd; //加法次数int nSub; //减法次数int nMul; //乘法次数double dlScore[3]; //3次测试得分}user; //定义全局变量CComplex CComplex::operator++() //重载运算符"++"，实部与虚部均加1{Real++;Image++;return *this;}CComplex CComplex::operator--() //重载运算符"--"，实部与虚部均减1{Real--;Image--;return *this;}double CComplex::mod() //求复数的模的平方，返回实部^2+虚部^2{return Real*Real+Image*Image;}int CComplex::operator>(CComplex &com) //重载运算符">"，比较模的大小{if(mod()>())return 1;elsereturn 0;}int CComplex::operator<(CComplex &com){if(mod()<())return 1; //若大，则返回1elsereturn 0;}int CComplex::operator!=(CComplex &com)//重载运算符"！="，分别判断复数的实部和虚部{if(*this==com)return 0;elsereturn 1;}istream & operator>>(istream &is,CComplex &com) //重载输入，可以输入a+bi的形式{cout<<"请输入复数:";char s[80];is>>s; //用字符串的形式接受复数int len=strlen(s); //求出字符串的长度int n=0,sign=1;//n为当前从字符串中提取出来的数字，初始化为0；sign是难道符号，初始化为正;for(int k=0;k '9') && (s[k]!='+' && s[k]!='-' && s[k]!='i')){cout<<"error"<='0' && s[k]<='9')//当前字符在0～9之间，将数字字符转换成数字数值{n=n*10+s[k]-'0';k++;}}if(s[len-1]!='i' && n!=0)//如果最后一个字符不是'I'，表示复数对象内只有实部，没有虚部{*sign;}return is;}ostream & operator<<(ostream &os,CComplex &com) //重载输入{if(fabs()0)os<<<<"+"<<<<"i";elseos<<<<<<"i"; //虚部为正return os;}CComplex CComplex::operator+(CComplex &com) //加法重载{CComplex sum;; //实部相加; //虚部相加return sum;}CComplex CComplex::operator*(CComplex &com) //乘法重载{CComplex multi;**; //乘积实部**; //乘积虚部return multi;}CComplex CComplex::operator-(CComplex &com) //减法重载{CComplex sub;;;return sub;}CComplex CComplex::operator+=(CComplex &com) //重载加法赋值{Real=Real+;Image=Image+;return *this;}CComplex CComplex::operator-=(CComplex &com) //重载减法赋值{Real=;Image=;return *this;}CComplex CComplex::operator*=(CComplex &com) //重载乘法赋值{double nReal=Real**;double nImage=Real**;Real=nReal;Image=nImage;return *this;}int CComplex::operator==(CComplex &com) //重载等于{if(Real== && Image==)return 1;elsereturn 0;}void Test(void) //测试函数{;cout<<"共10道题，做100以内的加减运算，满分100分:\n";double real1,real2,image1,image2,real3,real4,image3,image4;CComplex answer,temp;int score=0;char op;for(int i=0;i<=9;i++){/////为复数产生随机值real1=rand()%200-100;image1=rand()%200-100;real2=rand()%200-100;image2=rand()%200-100;CComplex a(real1,image1),b(real2,image2);real3=rand()%20-10;image3=rand()%20-10;real4=rand()%20-10;image4=rand()%20-10;CComplex c(real3,image3),d(real4,image4);op=rand()%3; //产生随机加减乘法运算的三个值switch(op){case 0:answer=a+b;cout<>temp; //输入用户计算值if(answer==temp) //比较用户计算值{score+=10;}else{cout<<"此题做错了\n";cout<<"正确答案为:"<>num1;cout<<"第二个复数:";cin>>num2;sum=num1+num2;cout<<"第三个复数:";cin>>num1;int i=4;while(!(num1==Zero)){sum=sum+num1;cout<<"第"<>num1;i++;}cout<<"加法结果是:"<>num1;cout<<"第2个复数:";cin>>num2;sub=num1-num2;cout<<"第3个复数:";cin>>num1;int i=4;while(!(num1==Zero)){sub=sub-num1;cout<<"第"<>num1;i++;}cout<<"减法结果是:"<>num1;cout<<"第二个复数:";cin>>num2;mul=num1*num2;cout<<"第三个复数:";cin>>num1;int i=4;while(!(num1==Zero)){mul*=num1;cout<<"第"<>num1;i++;}cout<<"乘法结果是:"<>num1;++num1;cout<<"自加的结果为"<>num1;--num1;cout<<"自减的结果为"<>num1;cout<<"输入第二个复数\n";cin>>num2;if(num1==num2)cout<<"这两个复数相等\n";else if(num1>num2)cout<>strChoise;if(strcmp(strChoise,"1")==0) //用户选1则调用Add()函数Add();else if(strcmp(strChoise,"2")==0) //用户选2则调用Sub()函数Sub();else if(strcmp(strChoise,"3")==0) //用户选3则调用Test()函数Test();else if(strcmp(strChoise,"4")==0) //用户选4则调用Add()函数Mul();else if(strcmp(strChoise,"5")==0) //用户选5调用Add1()函数Add1();else if(strcmp(strChoise,"6")==0) //用户选6则调用Sub1()函数Sub1();else if(strcmp(strChoise,"7")==0) //用户选7则调用Compare()函数compare();else if(strcmp(strChoise,"0")==0) //用户选0则结束调用函数{cout<<"\n\n\t欢迎下次继续使用复数计算器!\n\n";break;}else{cout<<"\n\t输入错误，请按任意键继续!\n";();();}}while((strcmp(strChoise,"0")));SaveFile(); //调用用户资料保存函数return 0;}