问题描述
下面的代码应允许我单击文本链接，然后启动我的javascript函数。 但是，单击链接时没有任何反应。 我使用了本教程来帮助我
<html><body>
<head>
<script language="JavaScript" type="text/javascript">
function getDSH(selectedField)
{
document.Results.dshToPrint.value = selectedField;
document.Results.getElementByID(selectedField).disabled = false;
document.Results.submit();
}
</script>
</head>
<font size = '6' color = 'red'>Loop 1 --------------------------------------------------------------------------------</font><p><a href = "javascript:getDSH('1-1');"> ##! TEST FAIL: /switchCard/testTraffic -l None -s 9208 -d 60 -r 100GBase-4 --allow-mix-speeds --ppm=2000000 </a></p>
<font size = '6' color = 'red'>Loop 2 --------------------------------------------------------------------------------</font><p><a href = "javascript:getDSH('2-1');"> ##! TEST FAIL: /switchCard/testVoltageMargining </a></p>
<p><a href = "javascript:getDSH('2-2');"> ##! TEST FAIL: /switchCard/testTraffic -l None -s 9208 -d 60 -r 100GBase-4 --allow-mix-speeds --ppm=2000000 </a></p>
<font size = '6' color = 'red'>Loop 3 --------------------------------------------------------------------------------</font><p><a href = "javascript:getDSH('3-1');"> ##! TEST FAIL: /switchCard/testVoltageMargining </a></p>
<p><a href = "javascript:getDSH('3-2');"> ##! TEST FAIL: /switchCard/testTraffic -l None -s 9208 -d 60 -r 100GBase-4 --allow-mix-speeds --ppm=2000000 </a></p>
<font size = '6' color = 'red'>Loop 4 --------------------------------------------------------------------------------</font><p><a href = "javascript:getDSH('4-1');"> ##! TEST FAIL: /switchCard/testVoltageMargining </a></p>
<p><a href = "javascript:getDSH('4-2');"> ##! TEST FAIL: /switchCard/testTraffic -l None -s 9208 -d 60 -r 100GBase-4 --allow-mix-speeds --ppm=2000000 </a></p>
<font size = '6' color = 'red'>Loop 5 --------------------------------------------------------------------------------</font><p><a href = "javascript:getDSH('5-1');"> ##! TEST FAIL: /switchCard/testTraffic -l None -s 9208 -d 60 -r 100GBase-4 --allow-mix-speeds --ppm=2000000 </a></p>
<font size = '6' color = 'red'>Loop 6 --------------------------------------------------------------------------------</font><p><a href = "javascript:getDSH('6-1');"> ##! TEST FAIL: /switchCard/testTraffic -l None -s 9208 -d 60 -r 100GBase-4 --allow-mix-speeds --ppm=2000000 </a></p>
<font size = '6' color = 'red'>Loop 7 --------------------------------------------------------------------------------</font><p><a href = "javascript:getDSH('7-1');"> ##! TEST FAIL: /switchCard/testVoltageMargining </a></p>
<p><a href = "javascript:getDSH('7-2');"> ##! TEST FAIL: /switchCard/testTraffic -l None -s 9208 -d 60 -r 100GBase-4 --allow-mix-speeds --ppm=2000000 </a></p>
<font size = '6' color = 'red'>Loop 8 --------------------------------------------------------------------------------</font><p><a href = "javascript:getDSH('8-1');"> ##! TEST FAIL: /switchCard/testTraffic -l None -s 9208 -d 60 -r 100GBase-4 --allow-mix-speeds --ppm=2000000 </a></p>
<font size = '6' color = 'red'>Loop 9 --------------------------------------------------------------------------------</font><p><a href = "javascript:getDSH('9-1');"> ##! TEST FAIL: /switchCard/testVoltageMargining </a></p>
<p><a href = "javascript:getDSH('9-2');"> ##! TEST FAIL: /switchCard/testTraffic -l None -s 9208 -d 60 -r 100GBase-4 --allow-mix-speeds --ppm=2000000 </a></p>
<font size = '6' color = 'red'>Loop 10 --------------------------------------------------------------------------------</font><p><a href = "javascript:getDSH('10-1');"> ##! TEST FAIL: /switchCard/testVoltageMargining </a></p>
<p><a href = "javascript:getDSH('10-2');"> ##! TEST FAIL: /switchCard/testTraffic -l None -s 9208 -d 60 -r 100GBase-4 --allow-mix-speeds --ppm=2000000 </a></p>
<font size = '6' color = 'red'>Loop 11 --------------------------------------------------------------------------------</font><p><a href = "javascript:getDSH('11-1');"> ##! TEST FAIL: /switchCard/testTraffic -l None -s 9208 -d 60 -r 100GBase-4 --allow-mix-speeds --ppm=2000000 </a></p>
<font size = '6' color = 'red'>Loop 12 --------------------------------------------------------------------------------</font><p><a href = "javascript:getDSH('12-1');"> ##! TEST FAIL: /switchCard/testVoltageMargining </a></p>
<p><a href = "javascript:getDSH('12-2');"> ##! TEST FAIL: /switchCard/testTraffic -l None -s 9208 -d 60 -r 100GBase-4 --allow-mix-speeds --ppm=2000000 </a></p>
<p><a href = "javascript:getDSH('12-3');"> ##! TEST FAIL: /switchCard/testTraffic -l None -s 9208 -d 60 -r 25GBase --allow-mix-speeds --ppm=2000000 </a></p>
<font size = '6' color = 'red'>Loop 13 --------------------------------------------------------------------------------</font><p><a href = "javascript:getDSH('13-1');"> ##! TEST FAIL: /switchCard/testVoltageMargining </a></p>
<p><a href = "javascript:getDSH('13-2');"> ##! TEST FAIL: /switchCard/testTraffic -l None -s 9208 -d 60 -r 100GBase-4 --allow-mix-speeds --ppm=2000000 </a></p>
<p><a href = "javascript:getDSH('13-3');"> ##! TEST FAIL: /switchCard/testTraffic -l None -s 9208 -d 60 -r 25GBase --allow-mix-speeds --ppm=2000000 </a></p>
<form name = 'Results' method = 'post' action = '/cgi-bin/developer/dsh-generator-d.py'>
<input type = 'hidden' name = '13-3' value = "["2015-07-03 14:46:00]" disabled>
<input type = 'hidden' name = 'dshToPrint' >
</form>
</body></html>
这是语法错误吗？
编辑：当我单击一个链接时，会出现此错误：未捕获的TypeError：document.Results.getElementByID不是一个函数
1楼
首先，尝试从浏览器使用开发人员控制台（可能显示为“ Ctrl + Shift + I”）。
对于这个问题：Javascript区分大小写，因此您的“ getElementByID（）”将不起作用； 使用“ getElementById（）”代替。 另外，在调用document。[form] .getElementById（）时，它将不起作用，您应该直接调用它：document.getElementById（id）。 不过，您的HTML中没有设置ID，因此点击将始终为函数中的此参数返回“空”。
我建议您首先尝试一些更简单的示例，然后再回到这个特定的示例！
2楼
将您的script标签移动到form的末尾。
JavaScript紧随HTML之后。
<html>
<body>
<font size = '6' color = 'red'>Loop 1 --------------------------------------------------------------------------------</font><p><a href = "javascript:getDSH('1-1');"> ##! TEST FAIL: /switchCard/testTraffic -l None -s 9208 -d 60 -r 100GBase-4 --allow-mix-speeds --ppm=2000000 </a></p>
<font size = '6' color = 'red'>Loop 2 --------------------------------------------------------------------------------</font><p><a href = "javascript:getDSH('2-1');"> ##! TEST FAIL: /switchCard/testVoltageMargining </a></p>
<p><a href = "javascript:getDSH('2-2');"> ##! TEST FAIL: /switchCard/testTraffic -l None -s 9208 -d 60 -r 100GBase-4 --allow-mix-speeds --ppm=2000000 </a></p>
<font size = '6' color = 'red'>Loop 3 --------------------------------------------------------------------------------</font><p><a href = "javascript:getDSH('3-1');"> ##! TEST FAIL: /switchCard/testVoltageMargining </a></p>
<p><a href = "javascript:getDSH('3-2');"> ##! TEST FAIL: /switchCard/testTraffic -l None -s 9208 -d 60 -r 100GBase-4 --allow-mix-speeds --ppm=2000000 </a></p>
<font size = '6' color = 'red'>Loop 4 --------------------------------------------------------------------------------</font><p><a href = "javascript:getDSH('4-1');"> ##! TEST FAIL: /switchCard/testVoltageMargining </a></p>
<p><a href = "javascript:getDSH('4-2');"> ##! TEST FAIL: /switchCard/testTraffic -l None -s 9208 -d 60 -r 100GBase-4 --allow-mix-speeds --ppm=2000000 </a></p>
<font size = '6' color = 'red'>Loop 5 --------------------------------------------------------------------------------</font><p><a href = "javascript:getDSH('5-1');"> ##! TEST FAIL: /switchCard/testTraffic -l None -s 9208 -d 60 -r 100GBase-4 --allow-mix-speeds --ppm=2000000 </a></p>
<font size = '6' color = 'red'>Loop 6 --------------------------------------------------------------------------------</font><p><a href = "javascript:getDSH('6-1');"> ##! TEST FAIL: /switchCard/testTraffic -l None -s 9208 -d 60 -r 100GBase-4 --allow-mix-speeds --ppm=2000000 </a></p>
<font size = '6' color = 'red'>Loop 7 --------------------------------------------------------------------------------</font><p><a href = "javascript:getDSH('7-1');"> ##! TEST FAIL: /switchCard/testVoltageMargining </a></p>
<p><a href = "javascript:getDSH('7-2');"> ##! TEST FAIL: /switchCard/testTraffic -l None -s 9208 -d 60 -r 100GBase-4 --allow-mix-speeds --ppm=2000000 </a></p>
<font size = '6' color = 'red'>Loop 8 --------------------------------------------------------------------------------</font><p><a href = "javascript:getDSH('8-1');"> ##! TEST FAIL: /switchCard/testTraffic -l None -s 9208 -d 60 -r 100GBase-4 --allow-mix-speeds --ppm=2000000 </a></p>
<font size = '6' color = 'red'>Loop 9 --------------------------------------------------------------------------------</font><p><a href = "javascript:getDSH('9-1');"> ##! TEST FAIL: /switchCard/testVoltageMargining </a></p>
<p><a href = "javascript:getDSH('9-2');"> ##! TEST FAIL: /switchCard/testTraffic -l None -s 9208 -d 60 -r 100GBase-4 --allow-mix-speeds --ppm=2000000 </a></p>
<font size = '6' color = 'red'>Loop 10 --------------------------------------------------------------------------------</font><p><a href = "javascript:getDSH('10-1');"> ##! TEST FAIL: /switchCard/testVoltageMargining </a></p>
<p><a href = "javascript:getDSH('10-2');"> ##! TEST FAIL: /switchCard/testTraffic -l None -s 9208 -d 60 -r 100GBase-4 --allow-mix-speeds --ppm=2000000 </a></p>
<font size = '6' color = 'red'>Loop 11 --------------------------------------------------------------------------------</font><p><a href = "javascript:getDSH('11-1');"> ##! TEST FAIL: /switchCard/testTraffic -l None -s 9208 -d 60 -r 100GBase-4 --allow-mix-speeds --ppm=2000000 </a></p>
<font size = '6' color = 'red'>Loop 12 --------------------------------------------------------------------------------</font><p><a href = "javascript:getDSH('12-1');"> ##! TEST FAIL: /switchCard/testVoltageMargining </a></p>
<p><a href = "javascript:getDSH('12-2');"> ##! TEST FAIL: /switchCard/testTraffic -l None -s 9208 -d 60 -r 100GBase-4 --allow-mix-speeds --ppm=2000000 </a></p>
<p><a href = "javascript:getDSH('12-3');"> ##! TEST FAIL: /switchCard/testTraffic -l None -s 9208 -d 60 -r 25GBase --allow-mix-speeds --ppm=2000000 </a></p>
<font size = '6' color = 'red'>Loop 13 --------------------------------------------------------------------------------</font><p><a href = "javascript:getDSH('13-1');"> ##! TEST FAIL: /switchCard/testVoltageMargining </a></p>
<p><a href = "javascript:getDSH('13-2');"> ##! TEST FAIL: /switchCard/testTraffic -l None -s 9208 -d 60 -r 100GBase-4 --allow-mix-speeds --ppm=2000000 </a></p>
<p><a href = "javascript:getDSH('13-3');"> ##! TEST FAIL: /switchCard/testTraffic -l None -s 9208 -d 60 -r 25GBase --allow-mix-speeds --ppm=2000000 </a></p>
<form name = 'Results' method = 'post' action = '/cgi-bin/developer/dsh-generator-d.py'>
<input type = 'hidden' name = '13-3' value = "["2015-07-03 14:46:00]" disabled>
<input type = 'hidden' name = 'dshToPrint' >
</form>
<script language="JavaScript" type="text/javascript">
function getDSH(selectedField)
{
document.Results.dshToPrint.value = selectedField;
document.Results.getElementByID(selectedField).disabled = false;
document.Results.submit();
}
</script>
</body>
</html>