为什么在IDLE里可以正常运行，在这里运行就报错呢
Topic source
import math
def quadratic (a,b,c):
if (b**2-4*a*c) < 0:
print('无解')
else:
x1 = (-b + math.sqrt(b**2-4*a*c)) / 2*a
x2 = (-b - math.sqrt(b**2-4*a*c)) / 2*a
return x1,x2
print('quadratic(2, 3, 1) =', quadratic(2, 3, 1))
print('quadratic(1, 3, -4) =', quadratic(1, 3, -4))
if quadratic(2, 3, 1) != (-0.5, -1.0):
print('测试失败')
elif quadratic(1, 3, -4) != (1.0, -4.0):
print('测试失败')
else:
print('测试成功')
# 补上输出结果
quadratic(2, 3, 1) = (-2.0, -4.0)
quadratic(1, 3, -4) = (1.0, -4.0)
测试失败
- 1
不如自挂_东南枝
import math
def quadratic (a,b,c):
if (b**2-4*a*c) < 0:
print('无解')
else:
x1 = (-b + math.sqrt(b**2-4*a*c)) / 2*a
x2 = (-b - math.sqrt(b**2-4*a*c)) / 2*a
return x1,x2
print('quadratic(2, 3, 1) =', quadratic(2, 3, 1))
print('quadratic(1, 3, -4) =', quadratic(1, 3, -4))
算了，交作业，也不知道答案对不对