[問題] class 裡的 private 的意義不大?
class 裡的 private 的意義不大?
class Account{
public:
bool save(int val); //存錢
bool get(int val); //領錢
private:
int money; //存款
}
Account man1;
很明顯我只能用 man1.save() 跟 man1.get() 來改變 man1.money
問題來了
我要使用這個 class 勢必可以看到此 class 的原始碼,當然也可以修改它
只要我把 private 這個標籤拿掉,我就可以輕鬆的使用 man1.money
那 private 的意義在哪?
感覺就像,我可以貼一張符咒在殭屍頭上,使殭屍不能走路
但是殭屍可以把符咒撕起來再走,這樣符咒整個很雞肋...
有什麼方法使用 class 卻看不到原始碼,還是說 private 有什麼其他意義在?
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