function
fn(a,b,c)
{
var
s
=
""
;
var
i;
s
+=
"
函数传入参数个数:
"
+
fn.arguments.length
+
"
\n
"
;
for
(i
=
0
;i
<
fn.arguments.length;i
++
)
{
s
+=
"
函数传入参数
"
+
i
+
"
:
"
+
fn.arguments[i]
+
"
\n
"
;
}
s
+=
"
函数实际参数个数:
"
+
fn.arguments.callee.length
+
"
\n
"
;
document.all.t.innerText
=
s
}
1. oncontextmenu="window.event.returnValue=false" 将彻底屏蔽鼠标右键
<table border oncontextmenu=return(false)> <td>no </table> 可用于Table
2. <body onselectstart="return false"> 取消选取、防止复制
3. onpaste="return false" 不准粘贴
4. oncopy="return false;" oncut="re ......
Although the days of long and tedious code branches to target specific browsers in JavaScript are over, once in a while it's still necessary to do some simple code branching and object detection to ensure that a certain piece of code is working properly on a user's machine.
In this article, I ......
