<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title></title> </head> <body> <script> /* var sum = 0; for (var i = 1; i <= 100; i += 1) { sum += i; } window.alert(sum); */ /* var sum = 0; var i = 1; while (i <= 100) { sum += i; i += 1; } window.alert(sum); */ var sum = 0; var i = 1; do { sum += i; i += 1; } while (i <= 100); window.alert(sum); </script> </body> </html>
