c++ HelloWord

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#include <iostream> 
using namespace std; 
 
int main() 
{ 
    string str; 
        cout << "plase enter you name\n"; 
        cin >> str; 
        cout << "Hello, " << str << "!\n";  
} 

運行輸出：
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pateo@pateo-B86N53X:~/work/study$ g++ -o hello test.cpp 
pateo@pateo-B86N53X:~/work/study$ ls 
hello  main  main.c  test.cpp 
pateo@pateo-B86N53X:~/work/study$ ./hello 
plase enter you name 
liaojianguo 
Hello, liaojianguo!