Question

此代码未向我显示警告： -

<script type="text/javascript">
var wloc = window.parent.location;
var abcd = wloc.substring(0,24);
alert(wloc);
alert(abcd);
</script>

Answer 1

确保您的脚本可以访问parent。然后修改脚本，如下所示

<script type="text/javascript">
window.onload = function(){
    var wloc = window.parent.location.href;
    var abcd = wloc.substring(0,24);
    alert(wloc);
    alert(abcd);
}
</script>

对于当前窗口的位置，请尝试下面的脚本

<script type="text/javascript">
window.onload = function(){
    var wloc = window.location.href;
    var abcd = wloc.substring(0,24);
    alert(wloc);
    alert(abcd);
}
</script>

Answer 2

在.href之后添加window.parent.location：

<script type="text/javascript">
window.onload = function(){
    var wloc = window.parent.location.href;
    var abcd = wloc.substring(0,24);
    alert(wloc);
    alert(abcd);
}
</script>

Answer 3

下面的行是错误的。这就是它没有显示警报的原因。

var abcd = wloc.substring(0,24);

改为使用

<script type="text/javascript">
  window.onload = function(){
    var wloc = window.parent.location.href;
    var abcd = wloc.substring(0,24);
    alert(wloc);
    alert(abcd);
 }
</script>

javascript没有显示警报

3 个答案: