用c语言写复数实现的代码

以下是用 C 语言实现复数的代码：

#include <stdio.h>

typedef struct {
    double real;
    double imag;
} Complex;

Complex add(Complex a, Complex b) {
    Complex c;
    c.real = a.real + b.real;
    c.imag = a.imag + b.imag;
    return c;
}

Complex sub(Complex a, Complex b) {
    Complex c;
    c.real = a.real - b.real;
    c.imag = a.imag - b.imag;
    return c;
}

Complex mul(Complex a, Complex b) {
    Complex c;
    c.real = a.real * b.real - a.imag * b.imag;
    c.imag = a.real * b.imag + a.imag * b.real;
    return c;
}

Complex div(Complex a, Complex b) {
    Complex c;
    double d = b.real * b.real + b.imag * b.imag;
    c.real = (a.real * b.real + a.imag * b.imag) / d;
    c.imag = (a.imag * b.real - a.real * b.imag) / d;
    return c;
}

void print_complex(Complex c) {
    printf("%.2f + %.2fi\n", c.real, c.imag);
}

int main() {
    Complex a = {1.0, 2.0};
    Complex b = {3.0, 4.0};
    Complex c = add(a, b);
    Complex d = sub(a, b);
    Complex e = mul(a, b);
    Complex f = div(a, b);
    print_complex(c);
    print_complex(d);
    print_complex(e);
    print_complex(f);
    return 0;
}

这个程序定义了一个复数类型 `Complex`，并实现了加、减、乘、除四种基本运算。在 `main` 函数中，我们定义了两个复数 `a` 和 `b`，并对它们进行了加、减、乘、除运算，最后将结果输出。