求解单项和多项式 Python 类

Question

我是第一次尝试类，我想创建一个程序，要求用户输入 a、b 和 c，然后为打印语句中所述的方程形式求解 x。但是，我的类有问题，给我一个错误，我没有使用类中的变量，缺少 5 个位置参数。任何帮助都会很棒，非常感谢。class EquationSolver:    def MonomialSolver(self,a,b,c,x):        a = input("Enter Input for a:")        b = input("Enter Input for b:")        c = input("Enter input for c:")        x = (c+b)/a        print("For the equation in the format ax-b=c, with your values chosen x must equal", x)    def PolynomialSolver(self,a,b,c,x):        a = input("Enter Input for a:")        b = input("Enter Input for b:")        c = input("Enter input for c:")        x = (c^2 + b) / a        print("For the equation in the format sqrt(ax+b) = c, with your values chosen x must equal", x)    MonomialSolver()    PolynomialSolver()

Answer 1

我看到的问题是函数的输入。您不需要 self 参数或任何其他参数。这些函数应该在循环之外运行。编辑后的版本应该像这样循环：

class EquationSolver:

    def MonomialSolver():

        # Uses float() to turn input to a number

        a = float(input("Enter Input for a:"))

        b = float(input("Enter Input for b:"))

        c = float(input("Enter input for c:"))

        x = (c+b)/a

        print("For the equation in the format ax-b=c, with your values chosen x must equal", x)

    def PolynomialSolver():

        a = float(input("Enter Input for a:"))

        b = float(input("Enter Input for b:"))

        c = float(input("Enter input for c:"))

        x = (c^2 + b) / a

        print("For the equation in the format sqrt(ax+b) = c, with your values chosen x must equal", x)

EquationSolver.MonomialSolver()

EquationSolver.PolynomialSolver()