c++ what is a for loop code example

Example 1: c++ for loop

//'i' can be any number
//Can be any comparison operater 
//can be any number compared
//can be any mathmatic operater

for (int i = 0; i<100; i++){
//Do thing
}

//more info on operaters
//https://www.w3schools.com/cpp/cpp_operators.asp

Example 2: c++ for loop

#include <iostream>

using namespace std;

int main()
{
	int abc = 10;
	for (int /*what ever letter you want (here I used i)*/i = 0; i < /*can be any comparison operater(here i used <)*/abc/*any variable to compare*/; i++/*what should happen when the code inside the for loop is executed*/)
    {
    	/*here do some thing that you want to repet*/
        cout << i << "\n";/*this will print 1, 2, 3, 4... until 10*/
    }
}