12.1.2 创建数组.html

javascript即用即差核心对象手册

<script>
   var arr1=new Array();
   var arr2=new Array(4);
   var arr3=new Array(1,2,3,"a","b");
   arr1[0]="add 1";
   arr1[1]="add 2";
   for(var i=0;i<4;i++)
   {
     arr2[i]=i;
   }
   writearr("arr1",arr1);
   writearr("arr2",arr2);
   writearr("arr3",arr3);
   //自定义函数，输出数组中所有元素
   function writearr(strinfo,arr)
   {
      document.write(strinfo+":");
      for(var i=0;i<arr.length;i++)
      {
         document.write(arr[i]);
         document.write("  ");
      }
      document.write("<br>");
   }
</script>