#include<bits/stdc++.h> using namespace std; int main() { char ch; //chr是字符 cin>>ch; if(ch>='A'&&ch<='E') {cout<<ch-64; //课上讲过A=65，以此类推BC } if(ch>='a'&&ch<='e') {cout<<ch-96; //课上讲过a=96，bc以此类推 } if(ch>'E'&&ch<'a'){cout<<"5"; } if(ch>'e') {cout<<"5"; } return 0; }