<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>while循环九九乘法表</title> <script type="text/javascript"> var i = 1; var str = ‘<table width = "800" border = "1" align = "center">‘; var sum = 0; while(i <= 9) { str += "<tr>"; var j = 1; while(j <= i) { sum = i * j; str += "<td>" + i + "×" + j +" =" + sum + "</td>"; j++; } i++; str += "</tr>"; } str += ‘</table>‘; document.write(str); // var str = ‘<table align = "center" width = "900" border = "1">‘; // while(i<=9) // { // str += ‘<tr>‘ // while(j<=i) // { // str += ‘<td> </td>‘ // j++; // document.write(j+"<br>"); // } // i++; // str += ‘</tr>‘ // document.write(i+"<br>"); // } // str += ‘</table>‘; </script> </head> <body> </body> </html>
原文：http://www.cnblogs.com/czbkhzh/p/6139432.html