C ++程序实现ASCII查找表
在本教程中，我们将讨论实现ASCII查找表的程序。
ASCII查找表是一种表格表示形式，提供给定字符的八进制，十六进制，十进制和HTML值。
ASCII查找表的字符包括字母，数字，分隔符和特殊符号。
示例
#include <iostream>
#include <string>
using namespace std;
//converting decimal value to octal
int Octal(int decimal){
int octal = 0;
string temp = "";
while (decimal > 0) {
int remainder = decimal % 8;
temp = to_string(remainder) + temp;
decimal /= 8;
}
for (int i = 0; i < temp.length(); i++)
octal = (octal * 10) + (temp[i] - '0');
return octal;
}
//converting decimal value to hexadecimal
string Hexadecimal(int decimal){
string hex = "";
while (decimal > 0) {
int remainder = decimal % 16;
if (remainder >= 0 && remainder <= 9)
hex = to_string(remainder) + hex;
else
hex = (char)('A' + remainder % 10) + hex;
decimal /= 16;
}
return hex;
}
//converting decimal value to HTML
string HTML(int decimal){
string html = to_string(decimal);
html = "&#" + html + ";";
return html;
}
//calculating the ASCII lookup table
void ASCIIlookuptable(char ch){
int decimal = ch;
cout << "Octal value: " << Octal(decimal) << endl;
cout << "Decimal value: " << decimal << endl;
cout << "Hexadecimal value: " << Hexadecimal(decimal) <<
endl;
cout << "HTML value: " << HTML(decimal);
}
int main(){
char ch = 'a';
ASCIIlookuptable(ch);
return 0;
}输出结果
Octal value: 141 Decimal value: 97 Hexadecimal value: 61 HTML value: a