1、示例源码
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>测试案例</title>
<style type="text/css">
*{margin: 0;padding: 0;}
#tb,th,td{border:1px solid darkred;}
#tb{width: 500px;border-collapse:collapse;}
td{text-align: center;}
</style>
</head>
<body>
<table ></html>
2、示例效果图