有实质区别吗？请大家详细说说，如果是的话那么我就直接使用了。另外如果获得一个tag的已经设置的属性？比如Input，如果根据vtag.Attributes.length遍历打印的话有100多个，可是平常的只设置了几个，我想要显性的设置的，也就是HTML代码里可以看到的，不相干的不想要。0 language=
1 dataFld=
2 onmouseup=null
3 class=
4 oncontextmenu=null
5 onrowexit=null
6 onbeforepaste=null
7 onactivate=null
8 lang=
9 onmousemove=null
10 onmove=null
11 onselectstart=null
12 oncontrolselect=null
13 onkeypress=null
14 oncut=null
15 onrowenter=null
16 onmousedown=null
17 onpaste=null
18 id=kw
19 onreadystatechange=null
20 onbeforedeactivate=null
21 hideFocus=false
22 dir=
23 onkeydown=null
24 onlosecapture=null
25 ondrag=null
26 ondragstart=null
27 oncellchange=null
28 onfilterchange=null
29 onrowsinserted=null
30 ondatasetcomplete=null
31 onmousewheel=null
32 ondragenter=null
33 onblur=null
34 onresizeend=null
35 onerrorupdate=null
36 onbeforecopy=null
37 ondblclick=null
38 onkeyup=null
39 onresizestart=null
40 onmouseover=null
41 onmouseleave=null
42 onmoveend=null
43 title=
44 onresize=null
45 contentEditable=inherit
46 dataFormatAs=
47 ondrop=null
48 onpage=null
49 onrowsdelete=null
50 style=null
51 onfocusout=null
52 ondatasetchanged=null
53 ondeactivate=null
54 onpropertychange=null
55 ondragover=null
56 onhelp=null
57 ondragend=null
58 onbeforeeditfocus=null
59 disabled=false
60 onfocus=null
61 accessKey=
62 onscroll=null
63 onbeforeactivate=null
64 onbeforecut=null
65 dataSrc=
66 onclick=null
67 oncopy=null
68 onfocusin=null
69 tabIndex=0
70 onbeforeupdate=null
71 ondataavailable=null
72 onmovestart=null
73 onmouseout=null
74 onmouseenter=null
75 onlayoutcomplete=null
76 implementation=null
77 onafterupdate=null
78 ondragleave=null
79 start=fileopen
80 readOnly=false
81 type=text
82 height=0
83 cache=null
84 alt=
85 onerror=null
86 hspace=0
87 maxLength=100
88 loop=1
89 onselect=null
90 width=0
91 dynsrc=
92 src=
93 CHECKED=false
94 onabort=null
95 accept=
96 onchange=null
97 vrml=
98 indeterminate=false
99 onload=null
100 align=
101 useMap=
102 lowsrc=
103 vspace=0
104 size=42
105 value=test
106 border=
107 name=wd
108 autocomplete=off
1 dataFld=
2 onmouseup=null
3 class=
4 oncontextmenu=null
5 onrowexit=null
6 onbeforepaste=null
7 onactivate=null
8 lang=
9 onmousemove=null
10 onmove=null
11 onselectstart=null
12 oncontrolselect=null
13 onkeypress=null
14 oncut=null
15 onrowenter=null
16 onmousedown=null
17 onpaste=null
18 id=kw
19 onreadystatechange=null
20 onbeforedeactivate=null
21 hideFocus=false
22 dir=
23 onkeydown=null
24 onlosecapture=null
25 ondrag=null
26 ondragstart=null
27 oncellchange=null
28 onfilterchange=null
29 onrowsinserted=null
30 ondatasetcomplete=null
31 onmousewheel=null
32 ondragenter=null
33 onblur=null
34 onresizeend=null
35 onerrorupdate=null
36 onbeforecopy=null
37 ondblclick=null
38 onkeyup=null
39 onresizestart=null
40 onmouseover=null
41 onmouseleave=null
42 onmoveend=null
43 title=
44 onresize=null
45 contentEditable=inherit
46 dataFormatAs=
47 ondrop=null
48 onpage=null
49 onrowsdelete=null
50 style=null
51 onfocusout=null
52 ondatasetchanged=null
53 ondeactivate=null
54 onpropertychange=null
55 ondragover=null
56 onhelp=null
57 ondragend=null
58 onbeforeeditfocus=null
59 disabled=false
60 onfocus=null
61 accessKey=
62 onscroll=null
63 onbeforeactivate=null
64 onbeforecut=null
65 dataSrc=
66 onclick=null
67 oncopy=null
68 onfocusin=null
69 tabIndex=0
70 onbeforeupdate=null
71 ondataavailable=null
72 onmovestart=null
73 onmouseout=null
74 onmouseenter=null
75 onlayoutcomplete=null
76 implementation=null
77 onafterupdate=null
78 ondragleave=null
79 start=fileopen
80 readOnly=false
81 type=text
82 height=0
83 cache=null
84 alt=
85 onerror=null
86 hspace=0
87 maxLength=100
88 loop=1
89 onselect=null
90 width=0
91 dynsrc=
92 src=
93 CHECKED=false
94 onabort=null
95 accept=
96 onchange=null
97 vrml=
98 indeterminate=false
99 onload=null
100 align=
101 useMap=
102 lowsrc=
103 vspace=0
104 size=42
105 value=test
106 border=
107 name=wd
108 autocomplete=off
getAttribute()这本来就是一对
两者效果一样的,我偏向于getAttribute(),但是aa.value写着更方便些