将整数转换为字符

我试图让我的程序打印字母而不是数字。我用char c = static_cast<char>(N);试图做到这一点，但它不会工作，而是打印不是（a-z）的字符图像。我如何才能将数字打印为字母？将整数转换为字符

#include <cstdlib> 
#include <iostream> 
using namespace std; 

// Function getUserInput obtains an integer input value from the user. 
// This function performs no error checking of user input. 
int getUserInput() 
{ 
    int N(0); 

    cout << endl << "Please enter a positive, odd integer value, between (1-51): "; 
    cin >> N; 
    if (N < 1 || N > 51 || N % 2 == 0) 
    { 
     cout << "Error value is invalid!" << "\n"; 
     cout << endl << "Please enter a positive, odd integer value, between (1-51): "; 
     cin >> N; 
     system("cls"); 
    } 

    cout << endl; 
    return N; 
} // end getUserInput function 

// Function printDiamond prints a diamond comprised of N rows of asterisks. 
// This function assumes that N is a positive, odd integer. 
void printHourglass(int N) 
{ 
    char c = static_cast<char>(N); 
    for (int row = (N/2); row >= 1; row--) 
    { 
     for (int spaceCount = 1; spaceCount <= (N/2 + 1 - row); spaceCount++) 
      cout << ' '; 
     for (int column = 1; column <= (2 * row - 1); column++) 
      cout << c; 
     cout << endl; 
    } // end for loop 
    // print top ~half of the diamond ... 
    for (int row = 1; row <= (N/2 + 1); row++) 
    { 
     for (int spaceCount = 1; spaceCount <= (N/2 + 1 - row); spaceCount++) 
      cout << ' '; 
     for (int column = 1; column <= (2 * row - 1); column++) 
      cout << c; 
     cout << endl; 
    } // end for loop 

    // print bottom ~half of the diamond ... 


    return; 
} // end printDiamond function 

int main() 
{ 
    int N = 1; 

    while (N == 1) 
    { 
     printHourglass(getUserInput()); 
     cout << endl; 
     cout << "Would you like to print another hourglass? (1 = Yes, 0 = No):"; 
     cin >> N; 
    } 
} // end main function

来源

2013-10-08 Ralph Lee Stone

更换cout << N看看'::性病:: to_string'，忘了旧的方法。 – user1095108

你想打印哪些字母？ –

我希望它能够根据for循环打印正在递增和递增的字母。例如：“ABCDCBA” –

字母不与A开始1或任何类似的编号。您可能使用ASCII/UTF-8系统。所以，在printHourglass，与

cout << static_cast<char>('A' + count - 1);

来源

2013-10-08 02:24:27

C函数，itoa
C++，使用字符串流
的boost :: lexical_cast的

其实对于你的情况，你可以直接打印出来。 cout << N

来源

2013-10-08 00:37:15

我改变了cout << c到cout << N，它仍然打印出数字，小时玻璃形状已关闭。 –

将整数转换为字符

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