Question

"当打开网页时弹出确认对话框,点击确定网页打开,否则网页关闭" 在javascript中用if语句怎么写?

Answer 1

<script type="text/javascript" language="javascript">
window.onload = function(){
if(!confirm("打开窗口？")) {
window.close();
}
};
</script>

Answer 2

你在head加上
<script>
if(!confirm("确认打开？")) {
window.open("","_self");
window.close();
};
</script>

Answer 3

function openWindow(){
if(confirm("确定打开新窗口吗？")){
var url = prompt("请输入一个网址","http://www.imooc.com/");
window.open( url,"_blank","toolbar=no, menubar=no, scrollbars=yes, width=400, height=400");
}
}