javaScript基础核心(1)

 1 /*
 2 var a = [1,2,3];
 3 for(var each in a){
 4     document.write(each+":" + a[each]+‘<br />‘)
 5 }
 6 结果：
 7     0:1
 8     1:2
 9     2:3
10 */



11 /*with语句实例：
12     frames[1].document.forms[0].name.value = ‘‘;
13     frames[1].document.forms[0].address.value = ‘‘;
14     frames[1].document.forms[0].email.value = ‘‘;
15     
16     可以写成下面with语句：
17     with(frames[1].document.forms[0]){
18         name.value = ‘‘;
19         address.value = ‘‘;
20         email.value = ‘‘;
21     }
22 */