星期三，今天早上上了四节JS课程，下午听健康讲座，晚上装系统。我想说装系统是最浪费时间的，以前大一的时候，有一段时间喜欢上装系统，我去有时候一个系统装了两三天，因为有很多问题。 ~ 后面就不研究了，昨天中午换了四g内存了，就把win8换成64位的了。
JS主要教的是试用DOM操作表格。rows[] insertRow() deleteRow() TableRow对象：cells[] rowIndex insertCell() deleteCell() TableCell对象的属性：cellIndex innerHTML align className
下面是我写的代码 ，但是还不行，在优化~ 有很多问题。 `
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html><head><title>MyHtml.html</title><meta http-equiv="keywords" content="keyword1,keyword2,keyword3"><meta http-equiv="description" content="this is my page"><meta http-equiv="content-type" content="text/html; charset=UTF-8"><!--<link rel="stylesheet" type="text/css" href="./styles.css">--></head><script type="text/javascript">//参数num代表当前要处理的表格下标function editTR(num) {var table1 = document.getElementById("table1");var tr1 = table1.rows[num];var td13 = tr1.cells[3];var button2 = td13.childNodes[1];if (button2.innerHTML == "修改") {button2.innerHTML = "确定";var td11 = tr1.cells[1];var count = td11.innerHTML;td11.innerHTML = "<input style='width :40px' type='text' value='"+ count + "'>";} else {button2.innerHTML = "修改";var td11 = tr1.cells[1];var input_num = td11.childNodes[0];td11.innerHTML = input_num.value;}}function delTR(num) {var table1 = document.getElementById("table1");table1.deleteRow(num);}function addTR() {var table1 = document.getElementById("table1");var length = table1.rows.length - 1;var newTR = table1.insertRow(length);newTR.align = "center";var td0 = newTR.insertCell(0);var td1 = newTR.insertCell(1);var td2 = newTR.insertCell(2);var td3 = newTR.insertCell(3);td0.innerHTML = "新增商品" + length;td1.innerHTML = "10";td2.innerHTML = "1";td3.innerHTML = "<button οnclick='delTR(" + length+ ")'>删除</button> <button οnclick='editTR(" + length+ ")'>修改</button>";}
</script><body><table id="table1" border="1" align="center" cellspacing="0"cellpadding="0"><tr align="center" style="background-color: gray"><td>商品名称</td><td>数量</td><td>价格</td><td>操作</td></tr><tr align="center"><td>水</td><td>5</td><td>2</td><td><button οnclick="delTR(1)">删除</button><button οnclick="editTR(1)">修改</button></td></tr><tr align="center"><td colspan="4"><button οnclick="addTR()">新增订单</button></td></tr></table></body>
</html>
DirectShow9在VS2005或vc6.0下编译出现问题的解决方法)
