Use while and do...while to compute the sum

/*

while loop to calculate the sum of 1-100

Algorithm: 1. Define the variable i to traverse the integers, and define the variable sum to calculate the sum

2. The structure of the while loop

*/

#include <stdio.h>

int main ()

{

int i= 1 , sum= 0 ; //Define the initial value of the variable i to 1, traverse the integers, sum is used to calculate the sum, and the initial value of sum is 0

while (i<= 100 )

{

sum = sum+i;

i++;

}

printf ( "The sum is: %d \n " ,sum);

return 0 ;

}

/*

Use the do...while loop structure to calculate the sum of integers from 1-100

Algorithm: 1. Define the initial value of the variable i to 1, the initial value of the variable sum to 0, and sum is used to calculate the sum

2. do...while loop structure

*/

#include <stdio.h>

int main ()

{

int i= 1 ,sum= 0 ;

do

{

sum =sum+i;

i++;

}

while(i<= 100);

printf( "总和为:%d \n ",sum);

return 0;

}