C++ 将Ascii字符转换为整数
嘿,伙计们,我这里有一个程序,基本上需要一个密钥来打开加密数据,但由于某种原因,每次我运行程序时,当转换Ascii数字为字符时,我得到的字符的Ascii值是错误的。例如,在下面的代码中,如果它尝试将Ascii值“50”转换为字符,我将得到“e”而不是“2”。任何帮助都将不胜感激C++ 将Ascii字符转换为整数,c++,encryption,ascii,C++,Encryption,Ascii,嘿,伙计们,我这里有一个程序,基本上需要一个密钥来打开加密数据,但由于某种原因,每次我运行程序时,当转换Ascii数字为字符时,我得到的字符的Ascii值是错误的。例如,在下面的代码中,如果它尝试将Ascii值“50”转换为字符,我将得到“e”而不是“2”。任何帮助都将不胜感激 #include "stdafx.h" #include "iostream" #include "string" #include <cstdlib> #includ
#include "stdafx.h"
#include "iostream"
#include "string"
#include <cstdlib>
#include <ctime>
#include <algorithm>
using namespace std;
string key = "5053525055";
int asciiValues;
char asciiChars;
for (int i = 0; i < key.length(); i += 2)
{
asciiValues = (int)(key[i] + key[i + 1]);
asciiChars = (int)(key[i] + key[i + 1]);
}
#包括“stdafx.h”
#包括“iostream”
#包括“字符串”
#包括
#包括
#包括
使用名称空间std;
字符串键=“505352555”;
内华达州;
炭疽;
对于(int i=0;i
这是为感兴趣的人准备的完整代码
#include "stdafx.h"
#include "iostream"
#include "string"
#include <cstdlib>
#include <ctime>
#include <algorithm>
using namespace std;
void encryption(string text)
{
char asciiChar;
int asciiValue = 0;
string key;
string encoded;
srand((unsigned)time(0));
int random_integer = rand();
cout << random_integer << endl;
//Creates the key for the string.
for (int i = 0; i < to_string(random_integer).length(); i++)
{
int asciiValue = (char)(to_string(random_integer)[i]);
key = key + to_string(asciiValue);
cout << asciiValue << endl;
}
int help = to_string(asciiValue).length();
/*Function that converts the individual characters in the input
string to AsciiValues and then puts them into the encoded data.*/
for (int i = 0; i < text.length(); i++)
{
int asciiValue = char(text[i]) + random_integer;
encoded = encoded + to_string(asciiValue) + ".";
}
cout << "Encrypted data: " << encoded << endl;
cout << "Your key for this encoded data is " << key << endl;
}
void decryption(string text, string key)
{
char asciiChars;
int asciiValues;
int number;
string qkey;
string decoded;
/*for (int i = 0; i < to_string(random_integer).length(); i++)
{
int asciiValue = (char)(to_string(random_integer)[i]);
key = key + to_string(asciiValue);
cout << asciiValue << endl;
}*/
for (int i = 0; i < key.length(); i += 2)
{
asciiValues = (int)(key[i] + key[i + 1]);
asciiChars = (int)(key[i] + key[i + 1]);
number = asciiChars - '0';
cout << number << endl;
}
cin >> qkey;
}
int main()
{
string answer;
int question = 0;
string vkey;
ask:
cout << "Would you like to:\nEncrypt Data[1]\nDecrypt Data[2]\nExit[3]" <<
endl;
cin >> question;
if (to_string(question) != "1"&&to_string(question) !=
"2"&&to_string(question) != "3")
{
goto ask;
}
else if (to_string(question) == "1")
{
while (answer.length() > 1000 || answer.length() < 1)
{
cout << "Please enter a string that has a length of 1 to 1000
characters. ";
cin >> answer;
cout << endl;
}
encryption(answer);
cin >> answer;
goto ask;
}
else if (to_string(question) == "2")
{
cout << "Please enter the string you would like decrypted. ";
cin >> answer;
cout << endl;
cout << "Now please enter the key for the string. ";
cin >> vkey;
cout << endl;
decryption(answer, vkey);
}
return 0;
}
#包括“stdafx.h”
#包括“iostream”
#包括“字符串”
#包括
#包括
#包括
使用名称空间std;
无效加密(字符串文本)
{
炭纤维;
int-ascivalue=0;
字符串键;
字符串编码;
srand((未签名)时间(0));
int random_integer=rand();
coutASCII数字字符以30hex(或48dec)开始。因此“0”=30hex。因此,要获得ASCII字符,必须添加“0”(30h)
'coutnumber=ASCIIchar-'0';
和ASCIIchar=number+'0';
请编辑您的问题以包含一个。请详细说明,当我尝试时,这是不起作用的。我想您最好详细说明当您尝试@DavidC.Rankin的建议hatbrakingzoot时发生了什么。关于的内容已经不多了>编号=ASCISICAR’- 0’;< /C>。在我输入代码后,for循环结束时,它返回的几乎相同的东西,给或取零。虽然我对C++是比较新的,但是它很可能是我的一个错误。谢谢BCR解释,对我来说,它现在变得更有意义,尤其是因为我是C++新手。