#include
using namespace std;
void Reverse(char* str)
{
int len = strlen(str);
char* t = new char[len+1];
memset(t,0,len+1);
int n=0;
for(int i=len-1;i>=0;i--)
t[n++]=str[i];
memcpy(str,t,len);
delete[] t;
}
int main()
{
char str[10]={0};
cin>>str;
Reverse(str);
cout<
}
输入:123456
输出:654321