11.2.7 cos方法.html

javascript即用即差核心对象手册

<script>
   with(document)
   {
      with(Math)
      {
        write("cos(0)="+cos(0));
        write("<br>cos(1)="+cos(1));
        var str="cos(acos(1))="+cos(acos(1));
        write("<br>"+str);
      }
   }
</script>