#include<iostream>
using namespace std;
char fun(char x, char y) {
if (x < y)
return x;
return y;
}
int main() {
// ASCII码可显示字符从32开始
for (int i = 0; i < 127; ++i) {
cout << (char) i << '\t';
if (i % 16 == 0) cout << i << endl;
}
cout << endl;
int a = '1', b = '1', c = '2';
cout << a << endl; // 49
cout << (char) a << endl; // 字符1
cout << fun(fun(a, b), fun(b, c)); // int型的a传入时强转(char)a，变为'1'
return 0;
}
ASCII码 可显示字符从32（空格）开始
� � � � � � � � � � � � � � � � 0
� � � � � � � � � � � � � � � 16
� � � � � � � � � � � � � � � 32
! " # $ % & ' ( ) * + , - . / 0 48
1 2 3 4 5 6 7 8 9 : ; < = > ? @ 64
A B C D E F G H I J K L M N O P 80
Q R S T U V W X Y Z [ \ ] ^ _ ` 96
a b c d e f g h i j k l m n o p 112
q r s t u v w x y z { | } ~
49
1
1
运行结果输出字符1，不会运行出错。
