main.cpp
1 #include <stdio.h> 2 #include "Complex.h" 3 int main() 4 { 5 complex c1(1,2); 6 complex c2(3,4); 7 complex c3 = c2 / c1; 8 complex c4(0, 0); 9 (c4 = c3) = c1; 10 printf("c1.a=%f,c1.b=%f ", c1.getA(), c1.getB()); 11 printf("c2.a=%f,c2.b=%f ", c2.getA(), c2.getB()); 12 printf("c3.a=%f,c3.b=%f ", c3.getA(), c3.getB()); 13 printf("c4.a=%f,c4.b=%f ", c4.getA(), c4.getB()); 14 if (c1 == c4) 15 { 16 printf("c1和c4相等 "); 17 } 18 if (c1 != c2) 19 { 20 printf("c1与c2不相等 "); 21 } 22 23 complex c5(0,0); 24 complex c6 = c5++; 25 printf("c6.a=%f ",c6.getA()); 26 printf("c6.b=%f ", c6.getB()); 27 complex c7 = ++c5; 28 printf("c7.a=%f ", c7.getA()); 29 printf("c7.b=%f ", c7.getB()); 30 return 0; 31 }
Complex.cpp
1 #include "Complex.h" 2 #include "math.h" 3 4 double complex::getA() 5 { 6 return this->a; 7 } 8 double complex::getB() 9 { 10 return this->b; 11 } 12 double complex::getModulus() 13 { 14 return sqrt(a*a + b*b); 15 } 16 17 complex complex:: operator + (const complex&c) 18 { 19 double na = a + c.a; 20 double nb = b + c.b; 21 complex ret(na,nb); 22 return ret; 23 } 24 complex complex:: operator - (const complex&c) 25 { 26 double na = a - c.a; 27 double nb = b - c.b; 28 complex ret(na,nb); 29 return ret; 30 } 31 complex complex:: operator * (const complex&c) 32 { 33 double na = a*c.a - b*c.b; 34 double nb = b*c.a - a*c.b; 35 complex ret(na,nb); 36 return ret; 37 } 38 complex complex:: operator / (const complex&c) 39 { 40 double cm = c.a * c.a + c.b * c.b; 41 double na = (a*c.a + b*c.b) / cm; 42 double nb = (b*c.a - a*c.b) / cm; 43 complex ret(na, nb); 44 return ret; 45 46 } 47 bool complex:: operator == (const complex&c) 48 { 49 return (a == c.a) && (b == c.b); 50 } 51 bool complex:: operator != (const complex&c) 52 { 53 return !(*this == c); 54 } 55 56 complex& complex:: operator = (const complex& c) 57 { 58 if (this != &c) 59 { 60 a = c.a; 61 b = c.b; 62 } 63 return *this; 64 } 65 66 complex& complex:: operator ++() 67 { 68 a = a + 1; 69 b = b + 1; 70 return *this; 71 } 72 complex complex:: operator ++(int) 73 { 74 complex ret(a, b); 75 a = a + 1; 76 b = b + 1; 77 return ret; 78 }
Complex.h
1 #ifndef _COMPLEX_H_ 2 #define _COMPLEX_H_ 3 4 class complex 5 { 6 double a; 7 double b; 8 public: 9 complex(double a,double b) :a(0), b(0) 10 { 11 this->a = a; 12 this->b = b; 13 } 14 double getA(); 15 double getB(); 16 double getModulus(); 17 complex operator + (const complex&c); 18 complex operator - (const complex&c); 19 complex operator * (const complex&c); 20 complex operator / (const complex&c); 21 bool operator == (const complex&c); 22 bool operator != (const complex&c); 23 complex& operator = (const complex&c); 24 complex& operator ++(); 25 complex operator ++(int); 26 27 }; 28 29 #endif