C + + Basic Learning 4

#include  <IOSTREAM> #include  <string>//array Learning Int main () {   //integer array/*  int array[5];   int i;   for  ( i=0;i<5;i++)     {   std::cout<< "please input the value of array[" <<i<< "]" <<std::endl;   std::cin>>array[i];   }    for  ( i=0;i<5;i++)    {   std::cout<<i<< ":" <<array[i]<<std::endl;   }*/  //character Array     // char  buffer[80]={'};    //std::cout<< "please enter a string" < <std::endl;//std::cin>>buffer;//std::cout<< "Here is the buffer ..." <<buffer <<std::endl;//array Copy//char buffer[]= "Hello world";//char buffer2[80]={'};//strcpy ' ( Buffer2,buffer);//std::cout<<buffer2<<std::endl;      //the creation of the string std::string str  ("Hello  world ");std::cout<<str<<std::endl;std::string str2;str2=str;std::cout<<str2< <std::endl;str2= "My name is lilei";std::cout<<str2<<std::endl;std::string  Result=str+str2;std::cout<<result<<std::endl;std::string str3;str3= "My Friend is  lilei "; std::cout<<str3<<std::endl;return 0;}

C + + Basic Learning 4