web前端:编写JavaScript程序实现奇数行带背景色,粗体的九九乘法表
web前端:编写JavaScript程序实现奇数行带背景色,粗体的九九乘法表
编写JavaScript程序实现奇数行带背景色,粗体的九九乘法表
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<style>
strong {
background: #DDDDDD;
}
</style>
</head>
<body>
<h3>九九乘法表</h3>
<script>
var i, j;
for (i = 1; i < 10; i++) {
for (j = 1; j <= i; j++) {
if (i % 2 == 1) {
document.write("<strong>" + i + '*' + j + '=' + i * j + "  </strong>");
} else {
document.write(i + "*" + j + "=" + i * j + "  ");
}
}
document.write("<br/>");
}
</script>
</body>
</html>
运行结果: