c++ 求根公式

c++ 根据求根公式编写的

子曰:“弟子,入则孝,出则悌,谨而信,泛爱众,而亲仁。行有馀力,则以学文。”

#include <iostream>
using namespace std;

float x1, x2;
int a, b, c;
int disc = b ^ 2 - 4 * a*c;
class Equation {

	int a, b, c;  //成员变量

	public:Equation() {

	}
	public:Equation(int a,int b,int c) {
		this->a = a;
		this->b = b;
		this->c = c;
	}

	

	//大于零的方法
	void dayu_0(float a,float b) {
			x1 = (-b + sqrt(disc)) / (2 * a);
			x2 = (-b - sqrt(disc)) / (2 * a);
			cout << "x1 = " << x1 << " " << "x2 = " << x2 << endl;
	}
	//小于零的方法
	void xiaoyu_0() {
			cout << "小于零没有根" << endl;
	}
	//等于零的方法
	void dengyu(float a, float b) {
			x1 = x2 = (-b + sqrt(disc)) / (2 * a);
			cout << "result = " << x1 << endl;
	}
};

int main() {
	Equation *equ = new Equation();
	cout << "请输入a b c:" << endl;
	cin >> a >> b >> c;
	if (disc > 0) {
		equ->dayu_0(a,b);
	}
	else if (disc == 0) {
		equ->dengyu(a,b);
	}
	else {
		equ->xiaoyu_0();
	}


	return 0;
}

不过我想知道怎么用函数模板来做,求大佬指教!!!

有此语:把你会的东西教给别人,你就肯定学会了!!!

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