import math
def quadratic(a,b,c): if not isinstance(a,(int,float)): raise TypeError('bad operand type') elif not isinstance(b,(int,float)): raise TypeError('bad operand type') elif not isinstance(c,(int,float)): raise TypeError('bad operand type') elif a==0: print('a!=0') else: s=math.sqrt(b*2-4ac) x1=(-b+s)/2a x2=(-b-s)/2*a return x1,x2 print('quadratic(2,3,1)=',quadratic(2,3,1)) print('quadratic(1,3,-4)',quadratic(1,3,-4))
才发现直接贴在这里，会有缺失的
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JoyElaine
import math
def quadratic(a,b,c): if not isinstance(a,(int,float)): raise TypeError('bad operand type') elif not isinstance(b,(int,float)): raise TypeError('bad operand type') elif not isinstance(c,(int,float)): raise TypeError('bad operand type') elif a==0: print('a!=0') else: s=math.sqrt(b*2-4ac) x1=(-b+s)/2a x2=(-b-s)/2*a return x1,x2 print('quadratic(2,3,1)=',quadratic(2,3,1)) print('quadratic(1,3,-4)',quadratic(1,3,-4))