通過原生JS列印一個空心菱形圖案
阿新 • • 發佈:2019-01-12
<!doctype html> <html> <head> <meta charset="utf-8"> <title>無標題文件</title> </head> <body> </body> </html> <script> // 列印一個空心菱形圖案 for(var i = 1; i <=6 ; i++){ for(var k = 1 ; k<=6-i; k++){ document.write("-"); } for(var j = 1 ; j<=i*2-1; j++){ if(i == 1){ document.write("*"); }else if(j == 1 || j == i*2-1){ document.write("*"); }else{ document.write("-"); } } document.write("<br>"); } for(var i = 5; i >=1 ; i--){ for(var k = 1 ; k<=6-i; k++){ document.write("-"); } for(var j = 1 ; j<=i*2-1; j++){ if(i == 1){ document.write("*"); }else if(j == 1 || j == i*2-1){ document.write("*"); }else{ document.write("-"); } } document.write("<br>"); } </script>