99乘法表(js+css)
阿新 • • 發佈:2021-09-13
需求:
程式碼:
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>99乘法表</title> <style> td{ border: 1px solid; } </style> <script> document.write("<table align='center'>"); //1.完成基本的for迴圈巢狀,展示乘法表 for (var i = 1; i <= 9 ; i++) { document.write("<tr>"); for (var j = 1; j <=i ; j++) { document.write("<td>"); //輸出 1 * 1 = 1 document.write(i + " * " + j + " = " + ( i*j) +" "); document.write("</td>"); } /*//輸出換行 document.write("<br>");*/ document.write("</tr>"); } //2.完成表格巢狀 document.write("</table>"); </script> </head> <body> </body> </html>