# -*- coding:utf-8 -*-
import math
def quadratic(a,b,c):
if not isinstance(a,b,c,(int,float)):
raise TypeError('bad operand type')
delta=b*b-4*a*c
if a==0:
x0=-c/b
return x0
elif delta<0:
return ('此方程无解')
elif delta==0:
x1=x2=-b/2*a
return x1,x2
else:
x1=(-b+math.sqrt(delta))/2*a
x2=(-b-math.sqrt(delta))/2*a
return x1,x2
a=int(input('a:'))
b=int(input('b:'))
c=int(input('c:'))
print(quadratic(a,b,c))
这是我写的程序,为什么会出现这样的错误:
Traceback (most recent call last):
File "C:/Users/12485/Desktop/10.14.py", line 24, in <module>
print(quadratic(a,b,c))
File "C:/Users/12485/Desktop/10.14.py", line 5, in quadratic
if not isinstance(a,b,c,(int,float)):
TypeError: isinstance expected 2 arguments, got 4
求大神帮忙!
_锤锤锤爆pc个头
这是我写的程序,为什么会出现这样的错误: Traceback (most recent call last): File "C:/Users/12485/Desktop/10.14.py", line 24, in <module> print(quadratic(a,b,c)) File "C:/Users/12485/Desktop/10.14.py", line 5, in quadratic if not isinstance(a,b,c,(int,float)): TypeError: isinstance expected 2 arguments, got 4 求大神帮忙!