append (STL Sample)

最新推荐文章于 2024-03-30 19:29:15 发布

JunGamer

最新推荐文章于 2024-03-30 19:29:15 发布

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文章标签： string basic iterator header reference function

本文介绍如何在C++中使用STL的基本字符串附加工具来扩展字符串内容。通过不同形式的append方法，可以灵活地将各种数据源添加到现有字符串的末尾。示例代码展示了多种append用法，包括从另一个字符串、字符数组和迭代器范围添加元素。

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basic_string::append (STL Sample)
The sample code below illustrates how to use the basic_string::append STL function in Visual C++.
Required Header:<string>
Prototype:
string& append(const basic_string& _X);

string& append(const basic_string& _X, size_type pos, size_type count);

string& append(const element_type *_S, size_type count);

string& append(const element_type *_S);

string& append(size_type count, element_type _C);

string& append(Iterator first, Iterator last);

Note: The class/parameter names in the prototype do not match the version in the header file. Some have been modified to improve readability.
Description:The append member functions of the basic_string append elements to the end of the string. The different forms of the function provide alternate ways to specify the source of the elements that will be appended. The append functions return a reference to the string to which the elements were appended.
Sample Code:
//
//
// Compile options needed: /GX
//
// bsappend.cpp : Illustrates how to use the string append member
//                            function.
//
// Functions:
//
//    string::append - appends a sequence of elements to the
//                           current string.
//

#include <string>
#include <iostream>

using namespace std ;

void main()
{
string str1("012");
string str2("345");