10.2.22 substring方法.html

即学即用JavaScript核心对象参考手册原版光盘

<script>
  var str="0123456789";
  with(document)
   {
      write(str);
      //对比一
      write("<br>");
      write("slice(3)="+str.slice(3)+"<br>");
      write("substring(3)="+str.substring(3));
      //对比二
      write("<br>");
      write("slice(3,-3)="+str.slice(3,-3)+"<br>");
      write("substring(3,-3)="+str.substring(3,-3));
      //对比三
      write("<br>");
      write("slice(3,0)="+str.slice(3,0)+"<br>");
      write("substring(3,0)="+str.substring(3,0));
   }
</script>