Python笔记三
用for循环表达一个字符串
a = input()
for i in a:
print(i)
求一元二次方程的解
def num1(a,b,c):
delta = b**2-4*a*c
if delta < 0:
print("无解")
elif delta==0:
s = -b/(2*a)
print("唯一根x=",s)
else:
e = ((-b)+(b**2-4*a*c)**1/2)/2*a
d = ((-b)-(b**2-4*a*c)**1/2)/2*a
return e,d
Comments | NOTHING