JavaScript中DOM树的Node接口的一些简单应用
1. 用类名查找元素
<!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>
<title>Untitled Page</title>
<script type="text/javascript
">
//本页方法:用类名选择元素
function
getElements(cla) {
var
elements = document
.getElementsByTagName("*
");
var
elems = [];
for
(var
i = 0; i < elements.length
; i++) {
if
(elements[i].className && has(elements[i].className,cla)) {
elems.push(elements[i]);
}
}
return
elems;
}
function
has(ele, name
) {
var
clla = [];
if
(ele) clla = ele.split(' ');
for
(var
i = 0; i < clla.length
; i++)
if
(clla[i] == name
) {return
true
};
return
false
;
}
</script>
<style type="text/css
">
.h
{background-color:Aqua;
}
</style>
</head>
<body>
<i id="iiii
" class
="h
">Just test.</i><br />
<span id="ssss
" class
="h
">hehe</span>
<script type="text/javascript
">
var
e = getElements("h
");
var
nn = ""
for
(var
i = 0; i < e.length
; i++) {
nn +="id:
" + e[i].id + "\n
";
nn += "------line------\n
";
}
alert
(nn);
</script>
</body>
</html>
<
script
>
// This function takes a Node n, replaces it in the tree with an Element node
// that represents an HTML <
b
>
tag, and then makes the original node the
// child of the new <
b
>
相关文档：
javascript中event.keycode
keycode 8 = BackSpace BackSpace
keycode 9 = Tab Tab
keycode 12 = Clear
keycode 13 = Enter
keycode 16 = Shift_L
keycode 17 = Control_L
keycode 18 = Alt_L
keycode 19 = Pause
keycode 20 = Caps_Lock
keycode 27 = Escape Escape
keycode 32 = space space ......
calcu() ----函数实现两个数相乘
document.write(); ---打印
document.calc.元素名.value; --获得表单的值
document.表单名。表单元素名。value 为表单赋值
定义函数：
function 名字()
{
//javaScript预语句
}
onClick="函数名"; ......
C#代码与javaScript函数的相互调用
问：
1.如何在JavaScript访问C#函数?
2.如何在JavaScript访问C#变量?
3.如何在C#中访问JavaScript的已有变量?
4.如何在C#中访问JavaScript函数?
问题1答案如下：
javaScript函数中执行C#代码中的函数：
方法一：1、首先建立一个按钮，在后台将调用或处理的内容写入button_click中 ......
有时候找到别人写的js代码是压缩过的，通过这个工具可以对代码进行格式化。
<html>
<head>
<title>JS格式化工具 </title>
<meta http-equiv="content-type" content="text/html; charset=gb2312" />
<mce:style><!--
* { padding:0px; margin:5px; font-size:13px; font-fami ......
自定义一个log函数,输出传入函数的对象或者信息.
Log.js
// JScript source code
function
log(category, message, object) {
// If this category is explicitly disabled, do nothing
if
(log.options[category + "Disabled
"]) return
;
// Find the container
var
id = categ ......
