# include<iostream> # include<cstring> using namespace std; string s,s1; void fun(){ cin>>s; cin>>s1; //遍历字符串s,根据s[i]的字符,用s1[s[i]-'a']字符替换s[i],注意大小写 int lens=s.size(); for(int i=0;i<lens;i++){ if(s[i]>='a'&&s[i]<='z')//小写 { s[i]=s1[s[i]-'a']; } else if(s[i]>='A'&&s[i]<='Z')//大写 { s[i]=s1[s[i]-'A']-32; } } cout<<s<<endl; } int main(){ fun(); return 0; }