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C++ yun suan fu chong zai fu zhi yun suan fu

2008-06-01 02:04:49 编辑來源:互联网 评论
 
 
 
本文为【C++运算符重载赋值运算符】的拼音翻译版
  zi ding yi lei de fu zhi yun suan fu chong zai han shu de zuo yong yu nei zhi fu zhi yun suan fu de zuo yong lei si , dan shi yao yao zhu chong de shi , ta yu kao bei gou zao han shu yu xi gou han shu yi yang , yao zhu chong shen kao bei qian kao bei de wen ti , zai mei you shen kao bei qian kao bei de qing kuang xia , jia ru mei you zhi ding mo ren de fu zhi yun suan fu chong zai han shu ,
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  na me xi tong jiang hui zi dong ti gong yi ge fu zhi yun suan fu chong zai han shu 。
  fu zhi yun suan fu chong zai han shu de ding yi yu qi ta yun suan fu chong zai han shu de ding yi shi cha bu duo de 。
  xia mian wo men yi shi li shuo ming ru he shi yong ta , dai ma ru xia :
  // cheng xu zuo zhe : guan ning
  // zhan dian :www.cndev-lab.com
  // suo you gao jian yun you ban quan , ru yao zhuan zai , qing wu bi wen ming chu chu he zuo zhe
  #include <iostream>
  using namespace std;
  
  class Internet
  {
   public:
   Internet(char *name,char *url)
   {
   Internet::name = new char[strlen(name)+1];
   Internet::url = new char[strlen(url)+1];
   if(name)
   {
   strcpy(Internet::name,name);
   }
   if(url)
   {
   strcpy(Internet::url,url);
   }
   }
   Internet(Internet &temp)
   {
   Internet::name=new char[strlen(temp.name)+1];
   Internet::url=new char[strlen(temp.url)+1];
   if(name)
   {
   strcpy(Internet::name,temp.name);
   }
  
   if(url)
   {
   strcpy(Internet::url,temp.url);
   }
   }
   ~Internet()
   {
   delete[] name;
   delete[] url;
   }
   Internet& Operator =(Internet &temp)// fu zhi yun suan fu chong zai han shu
   {
   delete[] this->name;
   delete[] this->url;
   this->name = new char[strlen(temp.name)+1];
   this->url = new char[strlen(temp.url)+1];
   if(this->name)
   {
   strcpy(this->name,temp.name);
   }
   if(this->url)
   {
   strcpy(this->url,temp.url);
   }
   return *this;
   }
   public:
   char *name;
   char *url;
  };
  int main()
  {
   Internet a(" zhong guo ruan jian kai fa shi yan shi ","www.cndev-lab.com");
   Internet b = a;//b dui xiang huan bu cun zai , suo yi tiao yong kao bei gou zao han shu , jin xing gou zao chu li 。
  
   cout<<b.name<<endl<<b.url<<endl;
   Internet c(" mei guo zai xian ","www.aol.com");
   b = c;//b dui xiang yi jing cun zai , suo yi xi tong xuan ze fu zhi yun suan fu chong zai han shu chu li 。
   cout<<b.name<<endl<<b.url<<endl;
   system("pause");
  } shang li dai ma zhong de Internet& operator =(Internet &temp) jiu shi fu zhi yun suan fu chong zai han shu de ding yi , nei bu xu yao xian delete de zhi zhen jiu shi she ji shen kao bei wen ti de di fang , you yu b dui xiang yi jing gou zao guo ,name he url zhi zhen de fan wei yi jing que ding , suo yi zai fu zhi xin nei rong jin qu zhi qian bi xu ba dui qu qing chu , qu yu de guo da he guo xiao dou bu hao , suo yi gen zai hou mian chong xin fen pei dui qu da xiao , er hou jin xing fu zhi gong zuo 。
  zai lei dui xiang huan wei cun zai de qing kuang xia , fu zhi guo cheng shi tong guo kao bei gou zao han shu jin xing gou zao chu li ( dai ma zhong de Internet b = a; jiu shi zhe zhong qing kuang ), dan dang dui xiang yi jing cun zai , na me fu zhi guo cheng jiu shi tong guo fu zhi yun suan fu chong zai han shu chu li ( li zi zhong de b = c; jiu shu yu ci zhong qing kuang )。
C++运算符重载赋值运算符
geng duo nei rong qing kan C/C++ ji shu zhuan ti zhuan ti , huo【原文】【汉音对照
 
 
 
 
 
 
 
 
 
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   zi ding yi lei de fu zhi yun suan fu chong zai han shu de zuo yong yu nei zhi fu zhi yun suan fu de zuo yong lei si , dan shi yao yao zhu chong de shi , ta yu kao bei gou zao han shu yu xi gou han shu yi yang , yao zhu chong shen kao bei qian kao bei de wen ti , zai mei you shen kao bei qian kao bei de qing kuang xia , jia ru mei you zhi ding mo ren de fu zhi yun suan fu chong zai han shu , na me xi tong jiang hui zi dong ti gong yi ge fu zhi yun suan fu chong zai han shu 。    fu zhi yun suan fu chong zai han shu de ding yi yu qi ta yun suan fu chong zai han shu de ding yi shi cha bu duo de 。    xia mian wo men yi shi li shuo ming ru he shi yong ta , dai ma ru xia : // cheng xu zuo zhe : guan ning // zhan dian :www.cndev-lab.com // suo you gao jian yun you ban quan , ru yao zhuan zai , qing wu bi wen ming chu chu he zuo zhe #include <iostream> using namespace std; class Internet { public: Internet(char *name,char *url) { Internet::name = new char[strlen(name)+1]; Internet::url = new char[strlen(url)+1]; if(name) { strcpy(Internet::name,name); } if(url) { strcpy(Internet::url,url); } } Internet(Internet &temp) { Internet::name=new char[strlen(temp.name)+1]; Internet::url=new char[strlen(temp.url)+1]; if(name) { strcpy(Internet::name,temp.name); } if(url) { strcpy(Internet::url,temp.url); } } ~Internet() { delete[] name; delete[] url; } Internet& Operator =(Internet &temp)// fu zhi yun suan fu chong zai han shu { delete[] this->name; delete[] this->url; this->name = new char[strlen(temp.name)+1]; this->url = new char[strlen(temp.url)+1]; if(this->name) { strcpy(this->name,temp.name); } if(this->url) { strcpy(this->url,temp.url); } return *this; } public: char *name; char *url; }; int main() { Internet a(" zhong guo ruan jian kai fa shi yan shi ","www.cndev-lab.com"); Internet b = a;//b dui xiang huan bu cun zai , suo yi tiao yong kao bei gou zao han shu , jin xing gou zao chu li 。 cout<<b.name<<endl<<b.url<<endl; Internet c(" mei guo zai xian ","www.aol.com"); b = c;//b dui xiang yi jing cun zai , suo yi xi tong xuan ze fu zhi yun suan fu chong zai han shu chu li 。 cout<<b.name<<endl<<b.url<<endl; system("pause"); }   shang li dai ma zhong de Internet& operator =(Internet &temp) jiu shi fu zhi yun suan fu chong zai han shu de ding yi , nei bu xu yao xian delete de zhi zhen jiu shi she ji shen kao bei wen ti de di fang , you yu b dui xiang yi jing gou zao guo ,name he url zhi zhen de fan wei yi jing que ding , suo yi zai fu zhi xin nei rong jin qu zhi qian bi xu ba dui qu qing chu , qu yu de guo da he guo xiao dou bu hao , suo yi gen zai hou mian chong xin fen pei dui qu da xiao , er hou jin xing fu zhi gong zuo 。    zai lei dui xiang huan wei cun zai de qing kuang xia , fu zhi guo cheng shi tong guo kao bei gou zao han shu jin xing gou zao chu li ( dai ma zhong de Internet b = a; jiu shi zhe zhong qing kuang ), dan dang dui xiang yi jing cun zai , na me fu zhi guo cheng jiu shi tong guo fu zhi yun suan fu chong zai han shu chu li ( li zi zhong de b = c; jiu shu yu ci zhong qing kuang )。 [url=http://www.wangchao.net.cn/bbs/pydetail_1785322.html][img]http://image.wangchao.net.cn/it/1323423892205.gif[/img][/url] geng duo nei rong qing kan C/C++ ji shu zhuan ti zhuan ti , huo
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