字符串-04. 字符串逆序(15)

 1 #include<iostream>
 2 #include<string>
 3 using namespace std;
 4 int main(){
 5     string s;
 6     char tmp;
 7     getline(cin,s);
 8     for(int i=0;i<s.length()/2;i++){
 9         tmp=s[i];
10         s[i]=s[s.length()-1-i];
11         s[s.length()-1-i]=tmp;
12     }
13     cout<<s<<endl;
14     return 0;
15 }