obj=new Object(); obj.aaa = "a1"; obj.bbb = "b1"; var str=""; for (el in obj) str+= el + ":" + obj[el]+"\n"alert(str);
for(var a in p) document.write(a+"<br>"); 如<script> for(var a in document) document.write(a +"=" + eval("document."+a) + "<br>" ) </script> 得到所有的document的属性
obj.aaa = "a1";
obj.bbb = "b1";
var str="";
for (el in obj)
str+= el + ":" + obj[el]+"\n"alert(str);
document.write(a+"<br>");
如<script>
for(var a in document)
document.write(a +"=" + eval("document."+a) + "<br>" )
</script>
得到所有的document的属性