其中a为file input,form1为a所在的表单
获取文件域用.value ~~
a.substr(a.length-3,3)这样吧
1.不确定2.absbottom\absmiddle\baseline\bottom\left\middle\right\texttop\top
3.没看明白题
4.列表
5.alt
6.keywords
7.<ADDRESS>
8.<blockquote>
9.NORESIZE
10.link\"stylesheet"\type\href
11.@import
12.类名\属性
13.#ID\属性
14.:link{color=#0000ff}
15.:visited{color=#ff0000}
16.:hover{color=#ff0000}
17.:active{color=#ff0000}
18.<layer>
19.bgsound
20.SRC
21.autostrat
22.enable
23.align
24.<applet>
src