vector::rbegin (STL/CLR)

發行項
06/07/2013

指定已還原的受控制序列開頭。

    reverse_iterator rbegin();

備註

成員函式會傳回反向的 iterator，指派受控制序列中，或只是超出空序列開頭的最後一個元素。因此，它會指定反向序列的 beginning。您會用它來取得指定以反向順序顯示之受控制序列 current 開頭的 Iterator，但是如果受控制序列的長度變更，它的狀態也會變更。

範例

// cliext_vector_rbegin.cpp 
// compile with: /clr 
#include <cliext/vector> 
 
int main() 
    { 
    cliext::vector<wchar_t> c1; 
    c1.push_back(L'a'); 
    c1.push_back(L'b'); 
    c1.push_back(L'c'); 
 
// display initial contents " a b c" 
    for each (wchar_t elem in c1) 
        System::Console::Write(" {0}", elem); 
    System::Console::WriteLine(); 
 
// inspect first two items in reversed sequence 
    cliext::vector<wchar_t>::reverse_iterator rit = c1.rbegin(); 
    System::Console::WriteLine("*rbegin() = {0}", *rit); 
    System::Console::WriteLine("*++rbegin() = {0}", *++rit); 
 
// alter first two items and reinspect 
    *--rit = L'x'; 
    *++rit = L'y'; 
    for each (wchar_t elem in c1) 
        System::Console::Write(" {0}", elem); 
    System::Console::WriteLine(); 
    return (0); 
    }