C++ 程序：将字符串转换为字符数组

原文：https://www.studytonight.com/cpp-programs/cpp-program-to-convert-string-to-array-of-characters

大家好！

在本教程中，我们将学习如何演示如何用 C++ 编程语言将给定的字符串转换成字符数组。

逻辑:

这可以通过使用 c_str() 方法来实现。

语法:

 //This is an in-built method defined within the string.h library
    strncpy(cArray, s.c_str(), sizeof(cArray));

为了更好地理解它的用例，请参考下面的代码。

代号:

#include <iostream>

//This header file is used to make use of the strncpy() method
#include <string.h>

using namespace std;

int main()
{
    cout << "\n\nWelcome to Studytonight :-)\n\n\n";
    cout << " =====  Program to convert a String to an array of characters  ===== \n\n";

    string s;

    cout << "\n\nEnter a String without any space : ";
    cin >> s;

    cout << "\n\nThe array containing the characters of the strings as it's element is: "
         << "\n\n";

    //The array of characters to be printed
    char cArray[1024];

    //This is an in-built method defined within the string.h library
    strncpy(cArray, s.c_str(), sizeof(cArray));

    //Initializing all the elements of the array to 0, all at once.
    cArray[sizeof(cArray) - 1] = 0;

    //declaring the loop variable within the loop is syntactically correct, but it's scope remains limited to the loop.
    for (int i = 0; cArray[i] != 0; i++)
    {
        cout << "\n cArray[ " << i << " ] :   " << cArray[i];
    }

    cout << "\n\n";

    return 0;
}

输出:

我们希望这篇文章能帮助你更好地理解在 C++ 中将字符串转换成字符数组的概念。如有任何疑问，请随时通过下面的评论区联系我们。

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