如果有:class stock{ Private:doubletotal_wal; Public:double...如果有:class stock{ Private:doubletotal_wal;Public:double total()const { return total_wal;}};现在有:const stock &stock::topval(const stock &s)const{ if(s.total_wal>total_wal) retur

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如果有:class stock{ Private:doubletotal_wal; Public:double...如果有:class stock{ Private:doubletotal_wal;Public:double total()const { return total_wal;}};现在有:const stock &stock::topval(const stock &s)const{ if(s.total_wal>total_wal) retur

如果有:class stock{ Private:doubletotal_wal; Public:double...如果有:class stock{ Private:doubletotal_wal;Public:double total()const { return total_wal;}};现在有:const stock &stock::topval(const stock &s)const{ if(s.total_wal>total_wal) retur
如果有:class stock{ Private:doubletotal_wal; Public:double...
如果有:class stock{ Private:doubletotal_wal;
Public:double total()const { return total_wal;}
};现在有:
const stock &stock::topval(const stock &s)const
{ if(s.total_wal>total_wal) return s;
else return *this;
前面已经定义了total_wal为private,那在后面的topval函数中为何可以直接访问这个数据?不是实现了类的数据封装吗?应该通过该类的成员函数访问才对啊.

如果有:class stock{ Private:doubletotal_wal; Public:double...如果有:class stock{ Private:doubletotal_wal;Public:double total()const { return total_wal;}};现在有:const stock &stock::topval(const stock &s)const{ if(s.total_wal>total_wal) retur
topval函数难道就不是类成员了?竟然total函数可以访问,那topval函数为什么不就能访问了.类的数据封装是对类外而言的,作为 类的成员函数 topval 跟 total 定位是一模一样的.topval 完全没有必要调用total

如果有:class stock{ Private:doubletotal_wal; Public:double...如果有:class stock{ Private:doubletotal_wal;Public:double total()const { return total_wal;}};现在有:const stock &stock::topval(const stock &s)const{ if(s.total_wal>total_wal) retur 帮我看看这篇文章有没有离题!主题为“学好英语,迎大运”,如果有,请告诉我怎样修改Greet the Unverisaide with good EnglishHello everyone!I am glad to be here to share my views with you!I am from Class 3,Grade 6,Cuibei Pri stock stock stock有汤的意思? stock security share有什么区别 有一段英语对话,请高手帮我补充完整.A;Hi,Tina.Good news for you.B;( A;You won the first prize in the English competition.B;Wow!I am so glad to hear that.( A;Our English teacher did.She said three of the students in our class won the pri STOCK啥意思?请问下,STOCK在机械行业中有没有“钢板厚度”的意思? stock for stock deal 如何使用Adobe Stock Photos?photoshop软件中带了adobe bridge,adobe Stock Photos.其中adobe Stock Photos怎么用呀?怎么有很多.txt? 英语:stock和share表示股票有什么区别 标识卡 、STOCK CARD涂改有什么 要求? Securities Agency 和stock brokerage firm 有什么区别 库存有一个词,不是stock,storage!挺短的 goods receipt blocked stock 和 blocked stock有什么差别求大神帮助请问goods receipt blocked stock 和 blocked stock有什么差别,用处有什么不同呀? 英语翻译Stock Initialization for Inventory ManagementSAP R/3 软件中关于库存管理的,Inventory 和 stock 有什么区别, 关于stock composite index和stock component indexShanghai Stock Composite Index Shenzhen Stock Exchange Component Index 为什么上海的叫composite,深圳的叫component两者有什么不同,如何区分? C语言程序:判断ax^2+bx+c=0的方程有几个解,如果有则输出,系数a,b,c由键盘输入.下面是我编写的,错在哪里?#include#includevoid main(){float a,b,c;printf(plese input a,b,c: );scanf(%f,%f,%f,&a,&b,&c);if(b*b-4*a*c>0)pri