11.2.15 round方法.html

来自「即学即用JavaScript核心对象参考手册原版光盘」· HTML 代码 · 共 13 行

<script>
   with (document)
   {
       with (Math)
       {
          write("round(2.49)="+round(2.49));
          write("<br>round(2.5)="+round(2.5));
          write("<br>round(-2.49)="+round(-2.49));
          write("<br>round(-2.5)="+round(-2.5));
          write("<br>round(-2.51)="+round(-2.51));
       }
   }
</script>