vml中如何用javascript去掉polyline的箭头？

其中EndArrow="Open"  Open 设置为空
<HTML xmlns:v>
<HEAD>
<style>
v\:*{behavior:url(#default#VML);position:absolute;}o\:*{behavior:url(#default#VML);}
</style>
</head>
<body>
<v:PolyLine id="ply1" filled="false" Points="0,0 0,100 20,150 200,100" strokeweight="2" style="position:relative">
<v:stroke StartArrow="" EndArrow="" dashstyle="Dot" />
</v:PolyLine>
<input type=button onclick="doTest()" value="测试去掉箭头">
<script language="javascript">
function doTest(){
  var obj=document.all.ply1;
  //obj.childNodes[0].removeAttribute("endArrow");
}
</script>
</body>
</html>

解决方案 »

  1.   

    <HTML xmlns:v>
    <HEAD>
    <style>
    v\:*{behavior:url(#default#VML);position:absolute;}o\:*{behavior:url(#default#VML);}
    </style>
    </head>
    <body>
    <v:PolyLine id="ply1" filled="false" Points="0,0 0,100 20,150 200,100" strokeweight="2" style="position:relative">
    <v:stroke StartArrow="" EndArrow="Open" dashstyle="Dot" />
    </v:PolyLine>
    <input type=button onclick="doTest()" value="测试去掉箭头">
    <script language="javascript">
    function doTest(){
      var obj=document.all.ply1;
      obj.stroke.endArrow = "None";
    }
    </script>
    </body>
    </html>
      

  2.   

    附 :
        endArrow、startArrow没有 ""值类型可选类型：
    None (default) 
    Block 
    Classic 
    Diamond 
    Oval 
    Open
      

  3.   

    <HTML xmlns:v>
    <HEAD>
    <style>
    v\:*{behavior:url(#default#VML);position:absolute;}o\:*{behavior:url(#default#VML);}
    </style>
    </head>
    <body>
    <v:PolyLine id="ply1" filled="false" Points="0,0 0,100 20,150 200,100" strokeweight="2" style="position:relative">
    <v:stroke id="ply2" StartArrow="" EndArrow="Open" dashstyle="Dot" />
    </v:PolyLine>
    <input type=button onclick="doTest()" value="测试去掉箭头">
    <script language="javascript">
    function doTest(){
      vS=document.getElementById("ply2");
      vS.EndArrow="None";
    }
    </script>
    </body>
    </html>