Well, since you asked so nicely

lol
cpp
#include <iostream> //standard input/output
using namespace std; // standard namespace
int main ()
{
int consonantTotal = 0; // total number of consonants
int vowelTotal = 0; // total number of vowels
char input[256]; // the string that the user enters
cout << "Please enter a string> "; // prompt the user
gets(input); // gets the string from the user, gets() allows spaces
. . .
}
There's something to get you started. The next thing you need to think about is using a for loop, like so:
cpp
for (int i = 0; i < strlen(input); i++)
{
. . .
}
In that, you need to count the vowels and consonants using and if() else statement.
Finally, you would need to output the ratio.
HINT: If you want it to do this continuously, try putting all of that inside a while(true) loop - its an infinite loop