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2 changes: 1 addition & 1 deletion python6/3.md
Original file line number Diff line number Diff line change
Expand Up @@ -9,7 +9,7 @@

def sum(num1,num2):
# 两数之和
if not (isinstance (num1,(int ,float)) or isinstance (num2,(int ,float))):
if not (isinstance (num1,(int ,float)) and isinstance (num2,(int ,float))):
raise TypeError('参数类型错误')
return num1+num2

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