修改 or 为 and

dchaofei · web-flow · commit 57b1fdc46e39 · 2018-01-17T15:18:31.000+08:00
diff --git a/python6/3.md b/python6/3.md
@@ -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
 

-Original file line number
+Diff line change
 defsum(num1,num2):
 # 两数之和
 -ifnot (isinstance (num1,(int ,float)) orisinstance (num2,(int ,float))):
 +ifnot (isinstance (num1,(int ,float)) andisinstance (num2,(int ,float))):
 raiseTypeError('参数类型错误')
 return num1+num2