尝试定义时：类型错误：** 或 pow() 不支持的操作数类型：'NoneType' 和 'int'

Question

def linear_equation(a, b):
    while True:
        x = yield
        e = a*(x**2)+b
        return e
        print('Expression, '+str(a)+'*x^2 + '+str(b)+', with x being '+str(x)+' equals '+str(e))

我收到错误消息：

e = a*(x**2)+b
TypeError: unsupported operand type(s) for ** or pow(): 'NoneType' and 'int'

Answer 1

def linear_equation(a, b):
    while True:
        x = yield
        e = a*(x**2)+b
        return e
        print('Expression, '+str(a)+'*x^2 + '+str(b)+', with x being '+str(x)+' equals '+str(e))

我收到错误消息：

e = a*(x**2)+b
TypeError: unsupported operand type(s) for ** or pow(): 'NoneType' and 'int'