[ÇóÖú]¹ØÓÚstringÀàµÄһЩÎÊÌâ

ÕNÖ“ãGŠÉ

ÕâÊÇÊé±¾ÉϵĴúÂë`` ÎÒÏëÎʵÄÊǺì×Ö²¿·Ö£¬ÎªÊ²Ã´ÒªÓó£Ó¦ÓÃÄØ£¬ËƺõÖ±½ÓÓÃÖµ´«µÝÒ²¿ÉÒԴﵽͬÑùµÄЧ¹û£»
»¹ÓÐÊéÉϵÄÔËÐнá¹ûÊÇ
size:0
length:0
capacity:0
max size:4294967293
size:16
length:16
capacity:31
max size:4294967293
size:10
length:10
capacity:31
max size:4294967293

µ«ÎÒÔËÐкóµÄ½á¹ûÊÇ
size:0
length:0
capacity:15
max size:4294967294
size:16
length:16
capacity:31
max size:4294967294
size:10
length:10
capacity:15
max size:4294967294
£¨ÎÒÓõÄÊÇvc++2005£©ÎªÊ²Ã´»á²»Ò»ÑùÄØ£¿


#include <iostream>
#include <string>
using namespace std;
void PrintAttribute(congst string &str);
void main()
{
string s1,s2;
PrintAttribute(s1);
s1="My string object";
PrintAttribute(s1);
s2="new string";
PrintAttribute(s2);
system("pause");
}
void PrintAttribute(const string &str)
{
cout<<"size:"<<str.size()<<endl; //·µ»Ø´®³¤
cout<<"length:"<<str.length()<<endl; //·µ»Ø´®³¤
cout<<"capacity:"<<str.capacity()<<endl; //·µ»ØÈÝÁ¿
cout<<"max size:"<<str.max_size()<<endl; //·µ»Ø×î´óÔÊÐí´®³¤

}