<!DOCTYPE html><html lang="en"><head> ?<meta charset="UTF-8"> ?<meta name="viewport" content="width=device-width, initial-scale=1.0"> ?<meta http-equiv="X-UA-Compatible" content="ie=edge"> ?<title>Document</title></head><body> ?<script> ???var body = document.body; ???var table = document.createElement(‘table‘); ???table.setAttribute("border", 1); ???var trs = ‘‘; ???for(var i = 1; i < 10; i++) { ?????var tds = ‘‘; ?????for(var j=1; j <= i; j++) { ?????????tds += ‘<td>‘ + i + ‘*‘ + j + ‘=‘ + i * j +‘</td>‘; ?????} ?????trs += ‘<tr>‘ + tds + ‘</tr>‘; ???} ???table.innerHTML = trs; ???body.append(table); ?</script></body></html>
法二：
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>99乘法表</title> <script type="text/javascript"> ????document.write("<center><table border=\"3\">"); ??????for (i = 1; i <= 9; i++) { ????????document.write("<tr>"); ????????for (j = 1; j <= 9; j++) { ??????????if (j <= i) { ??????????????document.write("<td>" + i + "*" + j + "=" + i * j + "</td>") ??????????} else { ?????????????document.write("<td> </td>"); ??????????} ????????} ???????document.write("</tr>"); ??????} ????document.write("</table></center>"); </script> </head> <body> </body> </html>【乘法表】innerHTML可以将字符串标签转为html标签
原文地址：https://www.cnblogs.com/oklfx/p/9374668.html