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ID:41288070
大小:314.31 KB
页数:10页
时间:2019-08-21
《ConstantPointersandPointerstoConstants常量指针和指针常量》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、ConstantPointersandPointerstoConstantsItispossibletodistinguishthreesituationsarisingfromusingconstwithpointersandthethingstowhichtheypoint:Apointertoaconst.Here,what’spointedtocannotbemodified,butwecansetthepointertopointtosomethingelse:constchar*pstring=“Thistextcannotbechanged!”;Co
2、nstantPointers1tMyn#include"stdafx.h"#includeusingnamespaceSystem;usingnamespacestd;intmain(array^args){constintinteger1=20;constint*pInt=&integer1;cout<<"Variableinteger1isaconstantandcannotbechanged.."<3、;constintinteger2=40;pInt=&integer2;Youcouldn’tstoretheaddressofinteger1inanon-constpointer!!ConstantPointers2tMyncout<<"Butitisstillpossibletosetthepointertopointtosomethingelse!"<4、."<5、am>usingnamespaceSystem;usingnamespacestd;intmain(array^args){intinteger1=20;int*constpInt=&integer1;cout<<"PointervariablepIntisconst,soitcanonlyeverpointtovariableinteger1."<6、oanon-constvariableoftypeint!ConstantPointers5tMyninteger1=30;cout<<"Thevalueofthevariableinteger1isthistime"<<*pInt<<"."<7、anged.ConstantPointers7tMyn#include"stdafx.h"#includeusingnamespaceSystem;usingnamespacestd;intmain(array^args){constintinteger1=20;constint*constpInt=&integer1;cout<<"PointervariablepIntisaconstantpointertoaconstant,"<
3、;constintinteger2=40;pInt=&integer2;Youcouldn’tstoretheaddressofinteger1inanon-constpointer!!ConstantPointers2tMyncout<<"Butitisstillpossibletosetthepointertopointtosomethingelse!"<4、."<5、am>usingnamespaceSystem;usingnamespacestd;intmain(array^args){intinteger1=20;int*constpInt=&integer1;cout<<"PointervariablepIntisconst,soitcanonlyeverpointtovariableinteger1."<6、oanon-constvariableoftypeint!ConstantPointers5tMyninteger1=30;cout<<"Thevalueofthevariableinteger1isthistime"<<*pInt<<"."<7、anged.ConstantPointers7tMyn#include"stdafx.h"#includeusingnamespaceSystem;usingnamespacestd;intmain(array^args){constintinteger1=20;constint*constpInt=&integer1;cout<<"PointervariablepIntisaconstantpointertoaconstant,"<
4、."<5、am>usingnamespaceSystem;usingnamespacestd;intmain(array^args){intinteger1=20;int*constpInt=&integer1;cout<<"PointervariablepIntisconst,soitcanonlyeverpointtovariableinteger1."<6、oanon-constvariableoftypeint!ConstantPointers5tMyninteger1=30;cout<<"Thevalueofthevariableinteger1isthistime"<<*pInt<<"."<7、anged.ConstantPointers7tMyn#include"stdafx.h"#includeusingnamespaceSystem;usingnamespacestd;intmain(array^args){constintinteger1=20;constint*constpInt=&integer1;cout<<"PointervariablepIntisaconstantpointertoaconstant,"<
5、am>usingnamespaceSystem;usingnamespacestd;intmain(array^args){intinteger1=20;int*constpInt=&integer1;cout<<"PointervariablepIntisconst,soitcanonlyeverpointtovariableinteger1."<6、oanon-constvariableoftypeint!ConstantPointers5tMyninteger1=30;cout<<"Thevalueofthevariableinteger1isthistime"<<*pInt<<"."<7、anged.ConstantPointers7tMyn#include"stdafx.h"#includeusingnamespaceSystem;usingnamespacestd;intmain(array^args){constintinteger1=20;constint*constpInt=&integer1;cout<<"PointervariablepIntisaconstantpointertoaconstant,"<
6、oanon-constvariableoftypeint!ConstantPointers5tMyninteger1=30;cout<<"Thevalueofthevariableinteger1isthistime"<<*pInt<<"."<7、anged.ConstantPointers7tMyn#include"stdafx.h"#includeusingnamespaceSystem;usingnamespacestd;intmain(array^args){constintinteger1=20;constint*constpInt=&integer1;cout<<"PointervariablepIntisaconstantpointertoaconstant,"<
7、anged.ConstantPointers7tMyn#include"stdafx.h"#includeusingnamespaceSystem;usingnamespacestd;intmain(array^args){constintinteger1=20;constint*constpInt=&integer1;cout<<"PointervariablepIntisaconstantpointertoaconstant,"<
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