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<meta charset="utf-8">5
<title>蜜蜂教程(mifengjc.com)</title>6
<style>7
td,8
th {9
border: 1px solid black;10
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<body>14
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<table id="myTable" style="border-collapse:collapse;">16
<tr>17
<th>月份</th>18
<th>储蓄</th>19
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<tr>21
<td>一月</td>22
<td>$100</td>23
</tr>24
<tr>25
<td>二月</td>26
<td>$150</td>27
</tr>28
</table>29
<br>30
<button type="button" onclick="myFunction()">返回 border-collapse</button>31
<script>32
function myFunction() {33
alert(document.getElementById("myTable").style.borderCollapse);34
}35
</script>36
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</body>38
</html>