使用dart从html表中提取数据
有一个公共网页，显示三个表中的信息。我想提取这些信息，但不幸的是，我没有用于此的API，我可以在代码中使用它。我思考了如何最好地解决这个问题，并得出结论：对HTML代码的分析是不可避免的。因此，我将发出一个HTTPGET请求并从响应中“剪切”数据。其中一张桌子看起来像这样使用dart从html表中提取数据,html,json,api,flutter,dart,Html,Json,Api,Flutter,Dart,有一个公共网页，显示三个表中的信息。我想提取这些信息，但不幸的是，我没有用于此的API，我可以在代码中使用它。我思考了如何最好地解决这个问题，并得出结论：对HTML代码的分析是不可避免的。因此，我将发出一个HTTPGET请求并从响应中“剪切”数据。其中一张桌子看起来像这样 <table border="3" rules="all" cellpadding="1" cellspacing="1"> <tbody> <tr> <
<table border="3" rules="all" cellpadding="1" cellspacing="1">
<tbody>
<tr>
<td align="center">
<table width="100%">
<tbody>
<tr>
<td></td>
</tr>
</tbody>
</table>
</td>
<td colspan="12" align="center" nowrap="1">
<table width="100%">
<tbody>
<tr>
<td align="center" nowrap="1"><font size="3" face="Arial" color="#000000">
<b>Mo</b>
</font></td>
</tr>
</tbody>
</table>
</td>
<td colspan="12" align="center" nowrap="1">
<table width="100%">
<tbody>
<tr>
<td align="center" nowrap="1"><font size="3" face="Arial">
<b>Di</b>
</font></td>
</tr>
</tbody>
</table>
</td>
<td colspan="12" align="center" nowrap="1">
<table width="100%">
<tbody>
<tr>
<td align="center" nowrap="1"><font size="3" face="Arial">
<b>Mi</b>
</font></td>
</tr>
</tbody>
</table>
</td>
<td colspan="12" align="center" nowrap="1">
<table width="100%">
<tbody>
<tr>
<td align="center" nowrap="1"><font size="3" face="Arial">
<b>Do</b>
</font></td>
</tr>
</tbody>
</table>
</td>
<td colspan="12" align="center" nowrap="1">
<table width="100%">
<tbody>
<tr>
<td align="center" nowrap="1"><font size="3" face="Arial">
<b>Fr</b>
</font></td>
</tr>
</tbody>
</table>
</td>
</tr>
<tr>
<td rowspan="2" align="center" nowrap="1">
<table width="100%">
<tbody>
<tr>
<td align="center" nowrap="1"><font size="3" face="Arial">
7:35
</font></td>
</tr>
<tr>
<td align="center" nowrap="1"><font size="3" face="Arial">
8:20
</font></td>
</tr>
</tbody>
</table>
</td>
<td colspan="12" rowspan="2" align="center" nowrap="1">
<table width="100%">
<tbody>
<tr>
<td></td>
</tr>
</tbody>
</table>
</td>
<td colspan="12" rowspan="2" align="center" nowrap="1">
<table width="100%">
<tbody>
<tr>
<td></td>
</tr>
</tbody>
</table>
</td>
<td colspan="12" rowspan="2" align="center" nowrap="1">
<table width="100%">
<tbody>
<tr>
<td></td>
</tr>
</tbody>
</table>
</td>
<td colspan="12" rowspan="2" align="center" nowrap="1">
<table width="100%">
<tbody>
<tr>
<td></td>
</tr>
</tbody>
</table>
</td>
<td colspan="12" rowspan="2" align="center" nowrap="1" bgcolor="#010101">
<table width="100%">
<tbody>
<tr>
<td width="33%" bgcolor="#010101" nowrap="1"><font size="3" face="Arial" color="#FFFFFF">
WSP
</font></td>
<td width="33%" bgcolor="#010101" nowrap="1"><font size="3" face="Arial" color="#FFFFFF">
wü
</font></td>
<td width="33%" bgcolor="#010101" nowrap="1"><font size="3" face="Arial" color="#FFFFFF">
8k
</font></td>
</tr>
<tr>
<td colspan="3" width="33%" bgcolor="#010101" nowrap="1"><font size="3" face="Arial"
color="#FFFFFF">
A213
</font></td>
</tr>
</tbody>
</table>
</td>
</tr>
<tr>
</tr>
<tr>
<td rowspan="2" align="center" nowrap="1">
<table width="100%">
<tbody>
<tr>
<td align="center" nowrap="1"><font size="3" face="Arial" color="#000000">
8:25
</font></td>
</tr>
<tr>
<td align="center" nowrap="1"><font size="3" face="Arial">
9:10
</font></td>
</tr>
</tbody>
</table>
</td>
<td colspan="12" rowspan="2" align="center" nowrap="1">
<table width="100%">
<tbody>
<tr>
<td></td>
</tr>
</tbody>
</table>
</td>
<td colspan="12" rowspan="2" align="center" nowrap="1">
<table width="100%">
<tbody>
<tr>
<td></td>
</tr>
</tbody>
</table>
</td>
<td colspan="12" rowspan="2" align="center" nowrap="1">
<table width="100%">
<tbody>
<tr>
<td></td>
</tr>
</tbody>
</table>
</td>
<td colspan="12" rowspan="2" align="center" nowrap="1">
<table width="100%">
<tbody>
<tr>
<td></td>
</tr>
</tbody>
</table>
</td>
<td colspan="12" rowspan="4" align="center" nowrap="1" bgcolor="#80FF80">
<table width="100%">
<tbody>
<tr>
<td width="33%" bgcolor="#80FF80" nowrap="1"><font size="3" face="Arial" color="#000000">
Phy
</font></td>
<td width="33%" bgcolor="#80FF80" nowrap="1"><font size="3" face="Arial" color="#000000">
mp
</font></td>
<td width="33%" bgcolor="#80FF80" nowrap="1"><font size="3" face="Arial" color="#000000">
8k
</font></td>
</tr>
<tr>
<td colspan="3" width="33%" bgcolor="#80FF80" nowrap="1"><font size="3" face="Arial"
color="#000000">
A236
</font></td>
</tr>
</tbody>
</table>
</td>
</tr>
<tr>
</tr>
<tr>
<td rowspan="2" align="center" nowrap="1">
<table width="100%">
<tbody>
<tr>
<td align="center" nowrap="1"><font size="3" face="Arial" color="#000000">
9:15
</font></td>
</tr>
<tr>
<td align="center" nowrap="1"><font size="3" face="Arial">
10:00
</font></td>
</tr>
</tbody>
</table>
</td>
<td colspan="12" rowspan="2" align="center" nowrap="1">
<table width="100%">
<tbody>
<tr>
<td></td>
</tr>
</tbody>
</table>
</td>
<td colspan="12" rowspan="2" align="center" nowrap="1">
<table width="100%">
<tbody>
<tr>
<td></td>
</tr>
</tbody>
</table>
</td>
<td colspan="12" rowspan="2" align="center" nowrap="1">
<table width="100%">
<tbody>
<tr>
<td></td>
</tr>
</tbody>
</table>
</td>
<td colspan="12" rowspan="2" align="center" nowrap="1">
<table width="100%">
<tbody>
<tr>
<td></td>
</tr>
</tbody>
</table>
</td>
</tr>
<tr>
</tr>
<tr>
<td rowspan="2" align="center" nowrap="1">
<table width="100%">
<tbody>
<tr>
<td align="center" nowrap="1"><font size="3" face="Arial">
10:20
</font></td>
</tr>
<tr>
<td align="center" nowrap="1"><font size="3" face="Arial">
11:05
</font></td>
</tr>
</tbody>
</table>
</td>
<td colspan="12" rowspan="2" align="center" nowrap="1">
<table width="100%">
<tbody>
<tr>
<td></td>
</tr>
</tbody>
</table>
</td>
<td colspan="12" rowspan="2" align="center" nowrap="1">
<table width="100%">
<tbody>
<tr>
<td></td>
</tr>
</tbody>
</table>
</td>
<td colspan="12" rowspan="2" align="center" nowrap="1">
<table width="100%">
<tbody>
<tr>
<td></td>
</tr>
</tbody>
</table>
</td>
<td colspan="12" rowspan="2" align="center" nowrap="1">
<table width="100%">
<tbody>
<tr>
<td></td>
</tr>
</tbody>
</table>
</td>
<td colspan="12" rowspan="4" align="center" nowrap="1" bgcolor="#8080FF">
<table width="100%">
<tbody>
<tr>
<td width="33%" bgcolor="#8080FF" nowrap="1"><font size="3" face="Arial" color="#000000">
G&P
</font></td>
<td width="33%" bgcolor="#8080FF" nowrap="1"><font size="3" face="Arial" color="#000000">
hn
</font></td>
<td width="33%" bgcolor="#8080FF" nowrap="1"><font size="3" face="Arial" color="#000000">
8k
</font></td>
</tr>
<tr>
<td colspan="3" width="33%" bgcolor="#8080FF" nowrap="1"><font size="3" face="Arial"
color="#000000">
A312
</font></td>
</tr>
</tbody>
</table>
</td>
</tr>
<tr>
</tr>
<tr>
<td rowspan="2" align="center" nowrap="1">
<table width="100%">
<tbody>
<tr>
<td align="center" nowrap="1"><font size="3" face="Arial" color="#000000">
11:10
</font></td>
</tr>
<tr>
<td align="center" nowrap="1"><font size="3" face="Arial">
11:55
</font></td>
</tr>
</tbody>
</table>
</td>
<td colspan="12" rowspan="2" align="center" nowrap="1">
<table width="100%">
<tbody>
<tr>
<td></td>
</tr>
</tbody>
</table>
</td>
<td colspan="12" rowspan="2" align="center" nowrap="1">
<table width="100%">
<tbody>
<tr>
<td></td>
</tr>
</tbody>
</table>
</td>
<td colspan="12" rowspan="2" align="center" nowrap="1">
<table width="100%">
<tbody>
<tr>
<td></td>
</tr>
</tbody>
</table>
</td>
<td colspan="12" rowspan="2" align="center" nowrap="1">
<table width="100%">
<tbody>
<tr>
<td></td>
</tr>
</tbody>
</table>
</td>
</tr>
<tr>
</tr>
<tr>
<td rowspan="2" align="center" nowrap="1">
<table width="100%">
<tbody>
<tr>
<td align="center" nowrap="1"><font size="3" face="Arial">
12:00
</font></td>
</tr>
<tr>
<td align="center" nowrap="1"><font size="3" face="Arial">
12:45
</font></td>
</tr>
</tbody>
</table>
</td>
<td colspan="12" rowspan="2" align="center" nowrap="1">
<table width="100%">
<tbody>
<tr>
<td></td>
</tr>
</tbody>
</table>
</td>
<td colspan="12" rowspan="2" align="center" nowrap="1">
<table width="100%">
<tbody>
<tr>
<td></td>
</tr>
</tbody>
</table>
</td>
<td colspan="12" rowspan="2" align="center" nowrap="1">
<table width="100%">
<tbody>
<tr>
<td></td>
</tr>
</tbody>
</table>
</td>
<td colspan="12" rowspan="2" align="center" nowrap="1">
<table width="100%">
<tbody>
<tr>
<td></td>
</tr>
</tbody>
</table>
</td>
<td colspan="12" rowspan="2" align="center" nowrap="1">
<table width="100%">
<tbody>
<tr>
<td></td>
</tr>
</tbody>
</table>
</td>
</tr>
<tr>
</tr>
<tr>
<td rowspan="2" align="center" nowrap="1">
<table width="100%">
<tbody>
<tr>
<td align="center" nowrap="1"><font size="3" face="Arial">
12:55
</font></td>
</tr>
<tr>
<td align="center" nowrap="1"><font size="3" face="Arial">
13:40
</font></td>
</tr>
</tbody>
</table>
</td>
<td colspan="12" rowspan="2" align="center" nowrap="1">
<table width="100%">
<tbody>
<tr>
<td></td>
</tr>
</tbody>
</table>
</td>
<td colspan="12" rowspan="2" align="center" nowrap="1">
<table width="100%">
<tbody>
<tr>
<td></td>
</tr>
</tbody>
</table>
</td>
<td colspan="12" rowspan="2" align="center" nowrap="1">
<table width="100%">
<tbody>
<tr>
<td></td>
</tr>
</tbody>
</table>
</td>
<td colspan="12" rowspan="2" align="center" nowrap="1">
<table width="100%">
<tbody>
<tr>
<td></td>
</tr>
</tbody>
</table>
</td>
<td colspan="12" rowspan="4" align="center" nowrap="1" bgcolor="#8000FF">
<table width="100%">
<tbody>
<tr>
<td width="33%" bgcolor="#8000FF" nowrap="1"><font size="3" face="Arial" color="#FFFFFF">
Deu
</font></td>
<td width="33%" bgcolor="#8000FF" nowrap="1"><font size="3" face="Arial" color="#FFFFFF">
mu
</font></td>
<td width="33%" bgcolor="#8000FF" nowrap="1"><font size="3" face="Arial" color="#FFFFFF">
8k
</font></td>
</tr>
<tr>
<td colspan="3" width="33%" bgcolor="#8000FF" nowrap="1"><font size="3" face="Arial"
color="#FFFFFF">
A413
</font></td>
</tr>
</tbody>
</table>
</td>
</tr>
<tr>
</tr>
<tr>
<td rowspan="2" align="center" nowrap="1">
<table width="100%">
<tbody>
<tr>
<td align="center" nowrap="1"><font size="3" face="Arial" color="#000000">
13:45
</font></td>
</tr>
<tr>
<td align="center" nowrap="1"><font size="3" face="Arial">
14:30
</font></td>
</tr>
</tbody>
</table>
</td>
<td colspan="12" rowspan="2" align="center" nowrap="1">
<table width="100%">
<tbody>
<tr>
<td></td>
</tr>
</tbody>
</table>
</td>
<td colspan="12" rowspan="2" align="center" nowrap="1">
<table width="100%">
<tbody>
<tr>
<td></td>
</tr>
</tbody>
</table>
</td>
<td colspan="12" rowspan="2" align="center" nowrap="1">
<table width="100%">
<tbody>
<tr>
<td></td>
</tr>
</tbody>
</table>
</td>
<td colspan="12" rowspan="2" align="center" nowrap="1">
<table width="100%">
<tbody>
<tr>
<td></td>
</tr>
</tbody>
</table>
</td>
</tr>
<tr>
</tr>
<tr>
<td colspan="12" rowspan="2" align="center" nowrap="1">
<table width="100%">
<tbody>
<tr>
<td></td>
</tr>
</tbody>
</table>
</td>
<td colspan="12" rowspan="2" align="center" nowrap="1">
<table width="100%">
<tbody>
<tr>
<td></td>
</tr>
</tbody>
</table>
</td>
<td colspan="12" rowspan="2" align="center" nowrap="1">
<table width="100%">
<tbody>
<tr>
<td></td>
</tr>
</tbody>
</table>
</td>
<td colspan="12" rowspan="2" align="center" nowrap="1">
<table width="100%">
<tbody>
<tr>
<td></td>
</tr>
</tbody>
</table>
</td>
<td colspan="12" rowspan="4" align="center" nowrap="1" bgcolor="#FF8040">
<table width="100%">
<tbody>
<tr>
<td width="33%" bgcolor="#FF8040" nowrap="1"><font size="3" face="Arial" color="#000000">
MatS
</font></td>
<td width="33%" bgcolor="#FF8040" nowrap="1"><font size="3" face="Arial" color="#000000">
rm
</font></td>
<td width="33%" bgcolor="#FF8040" nowrap="1"><font size="3" face="Arial" color="#000000">
8k
</font></td>
</tr>
<tr>
<td colspan="3" width="33%" bgcolor="#FF8040" nowrap="1"><font size="3" face="Arial"
color="#000000">
A202
</font></td>
</tr>
</tbody>
</table>
</td>
</tr>
<tr>
</tr>
<tr>
<td rowspan="2" align="center" nowrap="1">
<table width="100%">
<tbody>
<tr>
<td align="center" nowrap="1"><font size="3" face="Arial" color="#000000">
15:35
</font></td>
</tr>
<tr>
<td align="center" nowrap="1"><font size="3" face="Arial">
16:20
</font></td>
</tr>
</tbody>
</table>
</td>
<td colspan="12" rowspan="2" align="center" nowrap="1">
<table width="100%">
<tbody>
<tr>
<td></td>
</tr>
</tbody>
</table>
</td>
<td colspan="12" rowspan="2" align="center" nowrap="1">
<table width="100%">
<tbody>
<tr>
<td></td>
</tr>
</tbody>
</table>
</td>
<td colspan="12" rowspan="2" align="center" nowrap="1">
<table width="100%">
<tbody>
<tr>
<td></td>
</tr>
</tbody>
</table>
</td>
<td colspan="12" rowspan="2" align="center" nowrap="1">
<table width="100%">
<tbody>
<tr>
<td></td>
</tr>
</tbody>
</table>
</td>
</tr>
<tr>
</tr>
<tr>
<td rowspan="2" align="center" nowrap="1">
<table width="100%">
<tbody>
<tr>
<td align="center" nowrap="1"><font size="3" face="Arial">
16:25
</font></td>
</tr>
<tr>
<td align="center" nowrap="1"><font size="3" face="Arial">
17:10
</font></td>
</tr>
</tbody>
</table>
</td>
<td colspan="12" rowspan="2" align="center" nowrap="1">
<table width="100%">
<tbody>
<tr>
<td></td>
</tr>
</tbody>
</table>
</td>
<td colspan="12" rowspan="2" align="center" nowrap="1">
<table width="100%">
<tbody>
<tr>
<td></td>
</tr>
</tbody>
</table>
</td>
<td colspan="12" rowspan="2" align="center" nowrap="1">
<table width="100%">
<tbody>
<tr>
<td></td>
</tr>
</tbody>
</table>
</td>
<td colspan="12" rowspan="2" align="center" nowrap="1">
<table width="100%">
<tbody>
<tr>
<td></td>
</tr>
</tbody>
</table>
</td>
<td colspan="12" rowspan="2" align="center" nowrap="1" bgcolor="#0000A0">
<table width="100%">
<tbody>
</tbody>
</table>
</td>
</tr>
<tr>
</tr>
</tbody>
</table>
钼
Di
惯性矩
做
Fr
7:35
8:20
WSP
wü
8k
A213
8:25
9:10
物理层
议员
8k
A236
9:15
10:00
10:20
11:05
G&；P
hn
8k