C++里面反转字符串怎么保留空格
反转字符串比如hello world转为dlrow olleh，但我写的代码没办法保留空格，请问原因，以及怎么改。万分感谢。代码：
#include
#include
using namespace std;
/* run this program using the console pauser or add your own getch, system("pause") or input loop */
int main(int argc, char *argv[]) {
string s;
int len;
int tem[1];
cout<<"Please enter a string:"<<endl;
cin>>s;
len=s.length();
for(int i=0;i<=(len/2);i++){
tem[0]=s[i];
s[i]=s[len-1-i];
s[len-1-i]=tem[0];
}
cout<<s<<endl;
return 0;
}
cin>>s可能不行，遇到空格就任务输入结束了，改成getline(cin,s);
int main(int argc, char *argv[])
{
char s[100],tem; // string s;
int len;
//int tem[1];
cout << "Please enter a string:" << endl;
// cin >> s;
cin.getline(s, 99);
len = strlen(s); // s.length();
for (int i = 0; i <= (len / 2); i++)
{
tem = s[i];
s[i] = s[len - 1 - i];
s[len - 1 - i] = tem;
}
cout << s << endl;
return 0;
}