<table>
<thead>
<tr>
<th>Date</th>
<th>City</th>
<th>Venue</th>
</tr>
</thead>
<tbody>
<tr>
<td>2017-06-25</td>
<td>
<abbr title="BeiJing">BJ</abbr>
</td>
<td>Ballroom</td>
</tr>
<tr>
<td>2017-08-02</td>
<td>
<abbr title="ShangHai">SH</abbr>
</td>
<td>Yoyoyo</td>
</tr>
<tr>
<td>2017-11-30</td>
<td>
<abbr title="HangZhou">HZ</abbr>
</td>
<td>NOW~</td>
</tr>
<tr>
<td>2017-11-30</td>
<td>
<abbr title="HangZhou">HZ</abbr>
</td>
<td>NOW~</td>
</tr>
<tr>
<td>2017-11-30</td>
<td>
<abbr title="ShiJiaZhuang">SJZ</abbr>
</td>
<td>NOW~</td>
</tr>
</tbody>
</table>
function addClass(element, value) {//element:需要添加新样式的元素,value:新的样式
if (!element.className) {
element.className = value;
} else {
newClassName = element.className;
newClassName += " ";
newClassName += value;
element.className = newClassName;
}
}
function stripeTable(){
if(!document.getElementsByTagName("table")) return false;
/*获取table*/
var table = document.getElementsByTagName("table");
/*遍历 为所有表格添加*/
for(var i=0;i<table.length;i++){
/*判断是否为奇数行
* 将第一行设置成true
* */
var odd = true;
var tr = table[i].getElementsByTagName("tr");
/*遍历表格中的每一行*/
for(var j=0;j<tr.length;j++){
if(odd){
addClass(tr[j],"stripe");
/*将下一行设置称false*/
odd = false;
}else{
/*将下一行设置称true*/
odd = true;
}
}
}
}
* {
margin: 0;
padding: 0;
}
.stripe{
background-color: #eee;
}
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>javascript斑马线表格</title>
<style>
* {
margin: 0;
padding: 0;
}
.stripe{
background-color: #eee;
}
</style>
<script src="script.js"></script>
</head>
<body>
<table>
<thead>
<tr>
<th>Date</th>
<th>City</th>
<th>Venue</th>
</tr>
</thead>
<tbody>
<tr>
<td>2017-06-25</td>
<td>
<abbr title="BeiJing">BJ</abbr>
</td>
<td>Ballroom</td>
</tr>
<tr>
<td>2017-08-02</td>
<td>
<abbr title="ShangHai">SH</abbr>
</td>
<td>Yoyoyo</td>
</tr>
<tr>
<td>2017-11-30</td>
<td>
<abbr title="HangZhou">HZ</abbr>
</td>
<td>NOW~</td>
</tr>
<tr>
<td>2017-11-30</td>
<td>
<abbr title="HangZhou">HZ</abbr>
</td>
<td>NOW~</td>
</tr>
<tr>
<td>2017-11-30</td>
<td>
<abbr title="ShiJiaZhuang">SJZ</abbr>
</td>
<td>NOW~</td>
</tr>
</tbody>
</table>
<script>
stripeTable();
</script>
</body>
</html>
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