简单密码程序未正确重置 我学习编程和C++作为我的第一个语言来娱乐。我正在尝试创建一个简单的程序来加密和解密输入,这样我就可以练习使用字符串了
一切正常,但不知何故,当我再次运行程序时,旧的输入会弹出 例如,如果我输入“greg”,然后解密它,然后再次输入greg,我会得到两个“greg”(加密)-因此它不会正确重置,它会继续添加新单词而不会重置简单密码程序未正确重置 我学习编程和C++作为我的第一个语言来娱乐。我正在尝试创建一个简单的程序来加密和解密输入,这样我就可以练习使用字符串了,c++,c++11,C++,C++11,一切正常,但不知何故,当我再次运行程序时,旧的输入会弹出 例如,如果我输入“greg”,然后解密它,然后再次输入greg,我会得到两个“greg”(加密)-因此它不会正确重置,它会继续添加新单词而不会重置 #include <iostream> #include <string> using namespace std; int main() { string alphabet{"a b c d e f g h i j k l m n o p q r s t u
#include <iostream>
#include <string>
using namespace std;
int main() {
string alphabet{"a b c d e f g h i j k l m n o p q r s t u v w x y z 1 2 3 4 "
"5 6 7 8 9 0"};
string key{"m h i p g f b t x u r l w a j e q k z d y v o c n s 9 5 0 7 8 2 "
"3 4 1 6"};
string word{};
string secretword{};
string decryptedword{};
int selection{};
// int newpos {};
int position{};
//int keypos{};
do {
cout << "-------------------------------------" << endl;
cout << "Select an Option: " << endl;
cout << "1: Encrypt" << endl;
cout << "2: Decrypt" << endl;
cout << "3: Quit" << endl;
cin >> selection;
if (selection == 1) {
cout << "Enter a Word to Encrypt:";
cin.sync();
getline(cin, word);
for (auto i : word) {
if (isupper(i)) {
cout << "Please use lower case only" << endl;
break;
}
position = alphabet.find(i);
secretword += key.at(position);
}
cout << "Encrypted Word: " << secretword << endl;
secretword = "";
}
if (selection == 2) {
cout << "Enter a Word to Decrypt: ";
cin.sync();
getline(cin, secretword);
for (auto i : secretword) {
if (isupper(i)) {
cout << "Please use lower case only" << endl;
break;
}
position = key.find(i);
decryptedword += alphabet.at(position);
}
cout << "Decrypted Word: " << decryptedword << endl;
decryptedword = "";
}
} while (selection != 3);
return 0;
}
#包括
#包括
使用名称空间std;
int main(){
字符串字母表{“a b c d e f g h i j k l m n o p q r s t u v w x y z 1 2 3 4”
"5 6 7 8 9 0"};
字符串键{“m h i p g f b t x u r l w a j e q k z d y v o c n s 9 5 0 7 8 2”
"3 4 1 6"};
字符串{};
字符串secretword{};
字符串解密字{};
int选择{};
//int newpos{};
int位置{};
//int-keypos{};
做{
cout程序对加密输出和解密输入都使用secretword
,并且从不清除。Ooops
与其清除变量,不如缩小它们的范围,这样它们就不需要被清除,也不会发生冲突。例如:
#include <iostream>
#include <string>
using namespace std;
int main()
{
string alphabet { "a b c d e f g h i j k l m n o p q r s t u v w x y z 1 2 3 4 "
"5 6 7 8 9 0" };
string key { "m h i p g f b t x u r l w a j e q k z d y v o c n s 9 5 0 7 8 2 "
"3 4 1 6" };
//int keypos{};
int selection;
do
{
cout << "-------------------------------------" << endl;
cout << "Select an Option: " << endl;
cout << "1: Encrypt" << endl;
cout << "2: Decrypt" << endl;
cout << "3: Quit" << endl;
cin >> selection;
if (selection == 1)
{
cout << "Enter a Word to Encrypt:";
cin.sync();
string word;
string secretword;
getline(cin, word);
for (auto i : word)
{
if (isupper(i))
{
cout << "Please use lower case only" << endl;
break;
}
auto position = alphabet.find(i);
secretword += key.at(position);
}
cout << "Encrypted Word: " << secretword << endl;
secretword = "";
}
if (selection == 2)
{
cout << "Enter a Word to Decrypt: ";
cin.sync();
string secretword;
string decryptedword;
getline(cin, secretword);
for (auto i : secretword)
{
if (isupper(i))
{
cout << "Please use lower case only" << endl;
break;
}
auto position = key.find(i);
decryptedword += alphabet.at(position);
}
cout << "Decrypted Word: " << decryptedword << endl;
decryptedword = "";
}
} while (selection != 3);
return 0;
}
#包括
#包括
使用名称空间std;
int main()
{
字符串字母表{“a b c d e f g h i j k l m n o p q r s t u v w x y z 1 2 3 4”
"5 6 7 8 9 0" };
字符串键{“m h i p g f b t x u r l w a j e q k z d y v o c n s 9 5 0 7 8 2”
"3 4 1 6" };
//int-keypos{};
int选择;
做
{
cout程序对加密输出和解密输入都使用secretword
,并且从不清除。Ooops
与其清除变量,不如缩小它们的范围,这样它们就不需要被清除,也不会发生冲突。例如:
#include <iostream>
#include <string>
using namespace std;
int main()
{
string alphabet { "a b c d e f g h i j k l m n o p q r s t u v w x y z 1 2 3 4 "
"5 6 7 8 9 0" };
string key { "m h i p g f b t x u r l w a j e q k z d y v o c n s 9 5 0 7 8 2 "
"3 4 1 6" };
//int keypos{};
int selection;
do
{
cout << "-------------------------------------" << endl;
cout << "Select an Option: " << endl;
cout << "1: Encrypt" << endl;
cout << "2: Decrypt" << endl;
cout << "3: Quit" << endl;
cin >> selection;
if (selection == 1)
{
cout << "Enter a Word to Encrypt:";
cin.sync();
string word;
string secretword;
getline(cin, word);
for (auto i : word)
{
if (isupper(i))
{
cout << "Please use lower case only" << endl;
break;
}
auto position = alphabet.find(i);
secretword += key.at(position);
}
cout << "Encrypted Word: " << secretword << endl;
secretword = "";
}
if (selection == 2)
{
cout << "Enter a Word to Decrypt: ";
cin.sync();
string secretword;
string decryptedword;
getline(cin, secretword);
for (auto i : secretword)
{
if (isupper(i))
{
cout << "Please use lower case only" << endl;
break;
}
auto position = key.find(i);
decryptedword += alphabet.at(position);
}
cout << "Decrypted Word: " << decryptedword << endl;
decryptedword = "";
}
} while (selection != 3);
return 0;
}
#包括
#包括
使用名称空间std;
int main()
{
字符串字母表{“a b c d e f g h i j k l m n o p q r s t u v w x y z 1 2 3 4”
"5 6 7 8 9 0" };
字符串键{“m h i p g f b t x u r l w a j e q k z d y v o c n s 9 5 0 7 8 2”
"3 4 1 6" };
//int-keypos{};
int选择;
做
{
库特