添加注释

yingl · yingl · commit 25ee7f75c0ee · 2016-08-01T14:28:27.000+08:00
diff --git a/expression_evaluation.py b/expression_evaluation.py
@@ -56,5 +56,5 @@ def evaluateExpression(self, expression):
                     ret.append(left_val - right_val)
         return 0 if not ret else ret[0] # &#23567;&#24515;&#20840;&#25324;&#21495;&#30340;&#22330;&#26223;
 
-    def isOperand(self, item):
+    def isOperand(self, item):  # &#36825;&#37324;&#20599;&#20010;&#25042;&#65292;&#27979;&#35797;&#25968;&#25454;&#27809;&#26377;&#36127;&#25968;&#65281;
         return (item[0] >= '0') and (item[0] <= '9')

-Original file line number
+Diff line change
                     ret.append(left_val - right_val)
         return 0 if not ret else ret[0] # 小心全括号的场景
 -    def isOperand(self, item):
 +    def isOperand(self, item):  # 这里偷个懒，测试数据没有负数！
         return (item[0] >= '0') and (item[0] <= '9')