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Math, 시간 나타내기Javascript 2023. 6. 22. 15:25
예제) Math
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Document</title> <script> var a = 3.5; var b = 3.4; var c = 3.0; // .은 객체 //반올림 var aa =Math.round(a); var bb=Math.round(b); var cc=Math.round(c); //올림 var aaa=Math.ceil(a); var bbb=Math.ceil(b); var ccc=Math.ceil(c); //내림 var aaaa=Math.floor(a); var bbbb=Math.floor(b); var cccc=Math.floor(c); document.write("@@@### round a===>" + aa,"<br>"); document.write("@@@### round b===>" + bb,"<br>"); document.write("@@@### round c===>" + cc,"<br>"); document.write("@@@### ceil a===>" + aaa,"<br>"); document.write("@@@### ceil b===>" + bbb,"<br>"); document.write("@@@### ceil c===>" + ccc,"<br>"); document.write("@@@### floor a===>" + aaaa,"<br>"); document.write("@@@### floor b===>" + bbbb,"<br>"); document.write("@@@### floor c===>" + cccc,"<br>"); </script> </head> <body> </body> </html>예제) 시간 나타내기
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Document</title> <script> // var seconds =prompt("정수를 입력하세요"); // var sec= seconds%60; // var min = ((seconds%3600-sec)/60); // var hour = ((seconds-sec-min*60)/3600); // document.write(seconds+"초는 "+hour+"시간, "+min+"분, "+sec+"초입니다."); var seconds = prompt("정수를 입력하세요:"); var hour = math.floor(time/3600); var min = math.floor(time/60)%60; var sec = time%60; document.write(seconds+"초는 "+hour+"시간, "+min+"분, "+sec+"초입니다."); </script> </head> <body> </body> </html>'Javascript' 카테고리의 다른 글
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