[英]Int to ASCII char and char to ASCII number | C++
我必須編寫簡短的腳本,將 int 更改為 ASCII char 並將 char 更改為 ASCII int。 但我不知道怎么做。 我寫了這個簡短的代碼,但是出了點問題。 我編程了半年。 有人可以寫它嗎? 第一次使用c++中的函數
#include <iostream>
#include <conio.h>
using namespace std;
char toChar(int n) {
return n + '0';
}
int toInt(char c) {
return c - '0';
}
int main()
{
int number;
cout << "Int: ";
cin >> number;
cout << "ASCII: " << static_cast<char>(number);
getch();
return 0;
}
非常感謝你們,我用更短且有效的代碼完成了它。
#include <iostream>
using namespace std;
int main(){
int a=68;
cout<<char(a);
char c='D';
cout<<int(c);
return 0;
}
#include <iostream>
using namespace std;
char toChar(int n)
{
if (n > 127 || n < 0)
return 0;
return (char)n;
}
int toInt(char c)
{
return (int)c;
}
int main()
{
int number = 97;
cout << "char corresponding to number " << number << " is '" << toChar(number) << "'\n";
char car='H';
cout << "number corresponding to char '" << car << "' is " << toInt(car) << "\n";
return 0;
}
output:
char corresponding to number 97 is 'a'
number corresponding to char 'H' is 72'
最初我以為您只是想轉換數字:您可以簡單地將 '0' 加減到 char 和 char 中:
char toChar(int n) {
return n + '0';
}
int toInt(char c) {
return c - '0';
}
如果您只想轉換類型,請閱讀此
也許你可以從下面的代碼開始。 如果這不完整,您能否用測試用例完成您的問題?
#include <iostream>
using namespace std;
char toChar(int n)
{ //you should test here the number shall be ranging from 0 to 127
return (char)n;
}
int toInt(char c)
{
return (int)c;
}
int main()
{
int number = 97;
cout << "number to ascii corresponding to " << number << " is " <<(char)number << " or " << toChar(number) <<endl;
char car='H';
cout << "ascii to number corresponding to " << car << " is " << (int)car << " or " << toInt(car) << endl;
return 0;
}
output 是:
number to ascii corresponding to 97 is a or a
ascii to number corresponding to H is 72 or 72
您也可以使用 printf,因此您不需要創建其他 function 來轉換數字。
int i = 64;
char c = 'a';
printf("number to ascii corresponding to %d is %c\n", i, i);
printf("ascii to number corresponding to %c is %d\n", c, c);
output 將是
number to ascii corresponding to 64 is A
ascii to number corresponding to a is 97
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