今天星期几 的简单写法

 //数组写法 
 var Adata=new Date();
  var ladArr=["日","一","二","三","四","五","六"];
  console.log(ladArr[Adata.getDay()]);
//字符串写法
 var Adata=new Date();
  var ladArr="0123456";
  console.log(ladArr.charAt(Adata.getDay()))