c++ - 如何将 int 转换为 ASCII char C++

Question

我必须将 int 转换为 ASCII 字符串。基本上，我想要这个:

    int iTest = 128;
    char ca[3];
??? --> **SOLUTION :** sprintf(ca,"%d",iTest);

结果:

 ca[0] = 0x31;--> Hexcode of '1'
 ca[1] = 0x32;
 ca[2] = 0x38;

Answer 1

使用std::string和 std::to_string :

#include <string>
#include <iostream>

using namespace std;

...

int iTest = 128;

string ca = to_string(iTest);

for (int i = 0; i < ca.size(); i++)
{
    cout << hex << "0x" << (int) ca[i] << endl;
}

结果:

0x31
0x32
0x38