JavaScript switch()的特殊用法

<script type="text/javascript">var age = 10;swicth(true){case age >= 1 && age < 10:console.log('儿童');break;case age >= 10 && age < 20:console.log('青少年');break;case age >=20 && age < 30:console.log('壮年');break;default:console.log('老年');}</script>

运行结果