개발

자바스크립트 별찍기 다이아몬드 예제 본문

Frontend/JavaScript

자바스크립트 별찍기 다이아몬드 예제

Study 2021. 3. 20. 14:38

포문 실력 향상을 위한 !! 자바스크립트 별찍기 예제!

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<!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 n=parseInt(prompt("값줘 홀수만"));
        var wS=n/2;
        var bS=1;
        var eStar=wS;
        var fStar=bS;
        if(n%2!=0){
            for(var i=n/2+1;i>=1;i--){
                fStar=bS;
                eStar=wS;
                for(var i2=n;i2>=1;i2--){
                    if(eStar>=1){
                        document.write("☆");
                        eStar--;
                    }else{
                        document.write("★");
                        fStar--
                        if(fStar==0){
                            eStar=wS;
                            bS+=2;
                        }
                    }
                    if(i2==1){
                        document.write("<br>");
                        wS--;
                    }
                }
            }
            wS=1;
            fStar=n-(wS*2);
            for(i=n/2;i>=1;i--){
                eStar=wS;
                for(i2=n;i2>=1;i2--){
                    if(eStar>=1){
                        document.write("☆");
                        eStar--;
                    }else{
                        document.write("★");
                        fStar--
                        if(fStar<1){
                            eStar=wS;
                        }
                    }
                    if(i2==1){
                        document.write("<br>");
                        wS+=1;
                    }
                }
                fStar=n-(wS*2);
            }
        }
    </script>
</head>
<body>
    
</body>
</html>
 cs

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