????C++ const ????????
???????????? ???????[ 2014/9/23 10:58:53 ] ??????????????? C++
????(2)const ???κ????????
????const???κ??????????????????????????????const?????????????????????????????
????a.const int fun1() //?????????????壬????????????????????
????b. const int * fun2() //????? const int *pValue = fun2();
????//?????????fun2()????????????????????????????
????c.int* const fun3() //????? int * const pValue = fun2();
????//?????????fun2()??????????????????????????
???????????£?????????????????????????軔???????const??????????????????????????????????const???κ??????????????????????????????????????????????????£????踐????????????const??const A test = A ????????????????????const??const A& test = A????? ???????????const???????????????????????A?е???У???????????????const??????????????????????и???????????????????·?????????
????4???????CONST
????(1)const???γ??????
????const?????????????????????????????????????????????????????????б??и????
????class A
????{
????…
????const int nValue; //???????????????
????…
????A(int x): nValue(x) { } ; //?????????????б??и??
????}
????(2)const???γ??????
????const?????????????????ó???????????????в???????const????????????д?????????????Ρ?
????class A
????{
????…
????void function()const; //??????????? ?????????????????.
????//???????????в???????const?????????
????}
????????const?????/???/?????????????????const?????????????const???γ????????????????????????const???????á?
????a. const??????????????????????????????????????????
????b. const??????????????????const?????????????????????????
????(3)const?????????/???????/????????
????· const????????????????????????????е???????????????????????????????????????????????
????· const???ε?????????????????const??????????????????????????????const??????????и????????????????
???????磺
????class AAA
????{
????void func1();
????void func2() const;
????}
????const AAA aObj;
????aObj.func1(); ×
????aObj.func2(); ???
????const AAA* aObj = new AAA();
????aObj-> func1(); ×
????aObj-> func2(); ???
??????????Const??????????Const????????
???????const_cast ?????????
??????÷?????const_cast <type_id> (expression)
???????????????????????const??volatile?????????const ??volatile??????? type_id??expression??????????????
????· ????????????????????????????????????
????· ????????????????????????????????????????
????· ????????????????????
??????????const???Щ????
????· ????????const?????????????????洦??????????????????????
????· ????????????????????罫const????????????????????
????· ??????????const???????????????????????????????????????
????· const?????????е???????÷??????????????????????????????????
????· ?????????????????????????const;
????· ??????????????????????????????????????????const????;
????· ?????????????????????????????????const ?????
?????塢??????????
????· ????????????????????????????????????????????????????????????????
?????????????????????????????????static??const?????
????· ?????????????????????????????static ?? const ???????????????????磺
????class A { public: A() {} private: static const int i; file://????????????? }??
????const int A::i=3;??????????????????????????б?? class A { public: A(int
????i=0):test(i) {} private: const int i; }?? ????????????????????
????· ???????const????????У?this?????????????????????????const????????У?
????this????????const??????????????volatile????????У?this????????
????volatile????????
????· new?????????????const??????
???????????????????????漰???????????????????SPASVOС??(021-61079698-8054)?????????????????????????
??????
??C++????????????C++ lvalue??rvalueC++11????????C++???????????????C++?е?????????????????C++?????????C++???Windows????λ??C/C++???????????????????JAVA??C??C++??????????c++??python???????????????????????????????C++???????C++?е????????C++????????????????C++ ???????????????C++?????????????????????C++????????????
???·???
??????????????????
2023/3/23 14:23:39???д?ò??????????
2023/3/22 16:17:39????????????????????Щ??
2022/6/14 16:14:27??????????????????????????
2021/10/18 15:37:44???????????????
2021/9/17 15:19:29???·???????·
2021/9/14 15:42:25?????????????
2021/5/28 17:25:47??????APP??????????
2021/5/8 17:01:11????????
?????????App Bug???????????????????????Jmeter?????????QC??????APP????????????????app?????е????????jenkins+testng+ant+webdriver??????????????JMeter????HTTP???????Selenium 2.0 WebDriver ??????