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Computer General/C++ development from the beginning

Beginning Loop

repetitive task ----> use loop!

<for loop>

#include <iostream>

int main()

{

using namespace std;

int x;

for(x=0;x<9;x++)        //int the parameter you need 3 separate things(how many times for each=1, where stop, the start point)

{

cout<< x <<endl;    //0 to 8

}

system("pause");

return 0;

}


<while loop> //naked for loop

#include <iostream>

int main()

{

use namespace std;

int x = 1;

while(x<=10)        //task condition in the parentheses

{

cout<< x <<endl;        //1 to 10

x++;             // x = x+1;

}

system("pause");

return 0;

}



Diffrence?

- at the beginning, increment in the body

- while(...if it is false the body is not gonna run)


<Do While Loop>        //Famous!

//Allow the execute the code at least one time and then verify the condition

#include <iostream>

int main()

{

using namespace std;

int x=55;

do

{

//instruction to do

cout<< x <<endl;

x=x+1;

}while(x<=10);    

//then how many times you want to do this?

//if false then it prints out just once

system("pause");

return 0;

}

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