#inlude<its/stdc++.h> using namespce std; int main(){ char ch; cin>ch; if('a'<=ch and ch<='z'){ cou<<"小写字母" }ele if('A'<=ch and ch<='Z'){ out<<"大写字母"; }else if('0'<=ch and ch<='9'{ cout<<"数字字符"; }else{ cut<<"其它字符"; } return 0; }