string的empty，size，length等比较

#include<iostream>
#include<string>

using namespace std;

void Display(const string& str)
{
cout<<"String: "<<str<<endl;
cout<<"Empty: "<<str.empty()<<endl;
cout<<"Size: "<<str.size()<<endl;
cout<<"Length: "<<str.length()<<endl;
cout<<"Capacity: "<<str.capacity()<<endl;
cout<<"Maxsize: "<<str.max_size()<<endl;
cout<<endl;
}

int _tmain(int argc, _TCHAR* argv[])
{
string s1="";  //无字节
Display(s1);

string s2="  ";  //两个空子节
Display(s2);

string s3="123456";
Display(s3);

string s4="123 456 asd";
Display(s4);

/* s3.resize(23);
Display(s3);*/

system("pause");
return 0;
}