九九乘法表

九九乘法表呀，九九乘法表呀，63？
等于你的年纪 : )

for (var n = 1; n <= 9; n++) {
      for (var m = 1; m < n + 1; m++) {
        var b = m * n;
        document.write(m + "×" + n + "=" + b + " " + " ");
      }
      document.write("<br/>");
      document.write("<br/>");
    }