swap (<string>)

交換兩個字串的字元陣列。

template<class Traits, class Allocator>
   void swap(
      basic_string<CharType, Traits, Allocator>& _Left,
      basic_string<CharType, Traits, Allocator>& _Right
   );

參數

• _Left
  項目將切換與另一個字串中的字串。

• _Right
  項目將交換第一個字串的另一個字串。

備註

樣板函式執行特定成員函式 _Left。交換(_Right) 的字串，確保不變的複雜度。

範例

// string_swap.cpp
// compile with: /EHsc
#include <string>
#include <iostream>

int main( ) 
{
   using namespace std;
   // Declaring an object of type basic_string<char>
   string s1 ( "Tweedledee" );
   string s2 ( "Tweedledum" );
   cout << "Before swapping string s1 and s2:" << endl;
   cout << "The basic_string s1 = " << s1 << "." << endl;
   cout << "The basic_string s2 = " << s2 << "." << endl;

   swap ( s1 , s2 );
   cout << "\nAfter swapping string s1 and s2:" << endl;
   cout << "The basic_string s1 = " << s1 << "." << endl;
   cout << "The basic_string s2 = " << s2 << "." << endl;
}

需求

標題: <string>

命名空間: std