一个简单的JS显示日期代码

一个简单的JS显示日期代码，可以显示星期几

<script type="text/javascript">function showweek() //显示中文星期{now = new Date() //定义新对象，new具有Date的性质if (now.getDay() == 0) return ("星期日")if (now.getDay() == 1) return ("星期一")if (now.getDay() == 2) return ("星期二")if (now.getDay() == 3) return ("星期三")if (now.getDay() == 4) return ("星期四")if (now.getDay() == 5) return ("星期五")if (now.getDay() == 6) return ("星期六")}function showdate() //显示系统日期{var now=new Date();var year = now.getYear();var month = now.getMonth()+1;var day = now.getDate();return year+"年"+month+"月"+day+"日";}</script>显示：<script language="javascript">document.write("今天是："+showdate()+" "+showweek())</script>