怎么标红积分大于等于6，改行数据显示为红色

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
  <title> New Document </title>
  <meta name="Generator" content="EditPlus">
  <meta name="Author" content="">
  <meta name="Keywords" content="">
  <meta name="Description" content="">
</head> <body>
  <table>
  <tr>
<td>姓名</td>
<td>积分</td>
  </tr>
  <tr>
<td>张三</td>
<td>1</td>
  </tr>
  <tr>
<td>张三</td>
<td>2</td>
  </tr>
  <tr>
<td>张三</td>
<td>3</td>
  </tr>
  <tr>
<td>李四</td>
<td>2</td>
  </tr>
  <tr>
<td>李四</td>
<td>4</td>
  </tr>
  <tr>
<td>王五</td>
<td>3</td>
  </tr>
  </table>
</body>
</html>htmljs

解决方案 »

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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
</head><body>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
  <title> New Document </title>
  <meta name="Generator" content="EditPlus">
  <meta name="Author" content="">
  <meta name="Keywords" content="">
  <meta name="Description" content="">
  <script type="text/javascript">
   function test(num){
var arr=[];
var tds=document.getElementsByTagName("td");
for(var i=2;i<tds.length;i+=2){
if(arr[tds[i].innerHTML]){
arr[tds[i].innerHTML]=parseInt(arr[tds[i].innerHTML])+parseInt(tds[i+1].innerHTML);
}else{
arr[tds[i].innerHTML]=parseInt(tds[i+1].innerHTML);
}
}
for(var i in arr){
if(arr.hasOwnProperty(i)){
if(arr[i]>=num){
for(var j=0;j<tds.length;j+=2){
if(tds[j].innerHTML==i){
tds[j].parentNode.style.backgroundColor='red';
}
}
}
}
}
}
window.onload=function(){
test(6);
}
  </script>
</head>

<body>
  <table>
  <tr>
    <td>姓名</td>
    <td>积分</td>
  </tr>
  <tr>
    <td>张三</td>
    <td>1</td>
  </tr>
  <tr>
    <td>张三</td>
    <td>2</td>
  </tr>
  <tr>
    <td>张三</td>
    <td>3</td>
  </tr>
  <tr>
    <td>李四</td>
    <td>2</td>
  </tr>
  <tr>
    <td>李四</td>
    <td>4</td>
  </tr>
  <tr>
    <td>王五</td>
    <td>3</td>
  </tr>
  </table>
</body>
</html>
</body>
</html>
这样试试
Quote: 引用 2 楼 zzgzzg00 的回复:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
</head><body>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
  <title> New Document </title>
  <meta name="Generator" content="EditPlus">
  <meta name="Author" content="">
  <meta name="Keywords" content="">
  <meta name="Description" content="">
  <script type="text/javascript">
   function test(num){
var arr=[];
var tds=document.getElementsByTagName("td");
for(var i=2;i<tds.length;i+=2){
if(arr[tds[i].innerHTML]){
arr[tds[i].innerHTML]=parseInt(arr[tds[i].innerHTML])+parseInt(tds[i+1].innerHTML);
}else{
arr[tds[i].innerHTML]=parseInt(tds[i+1].innerHTML);
}
}
for(var i in arr){
if(arr.hasOwnProperty(i)){
if(arr[i]>=num){
for(var j=0;j<tds.length;j+=2){
if(tds[j].innerHTML==i){
tds[j].parentNode.style.backgroundColor='red';
}
}
}
}
}
}
window.onload=function(){
test(6);
}
  </script>
</head>

<body>
  <table>
  <tr>
    <td>姓名</td>
    <td>积分</td>
  </tr>
  <tr>
    <td>张三</td>
    <td>1</td>
  </tr>
  <tr>
    <td>张三</td>
    <td>2</td>
  </tr>
  <tr>
    <td>张三</td>
    <td>3</td>
  </tr>
  <tr>
    <td>李四</td>
    <td>2</td>
  </tr>
  <tr>
    <td>李四</td>
    <td>4</td>
  </tr>
  <tr>
    <td>王五</td>
    <td>3</td>
  </tr>
  </table>
</body>
</html>
</body>
</html>王五不在满足的条件下不能变颜色的  只要个人积分和大于等于6的变颜色