一个js的程序有点不懂,大家指点一下,谢谢了!
本人刚开始学js,有个问题不太懂,
var OpenWindowVic;
var CancelSign = 0;
function OpenWinVic(args,NewWindowName)
{
var sign;
if(OpenWindowVic)
{
sign = !OpenWindowVic.closed;
}
else
{
sign = false;
}
if (!sign)
{
OpenWindowVic = OpenWindow(args,NewWindowName);
}
else
{
OpenWindowVic.focus();
}
}
var OpenWindowVic;
var CancelSign = 0;
function OpenWinVic(args,NewWindowName)
{
var sign;
if(OpenWindowVic)
{
sign = !OpenWindowVic.closed;
}
else
{
sign = false;
}
if (!sign)
{
OpenWindowVic = OpenWindow(args,NewWindowName);
}
else
{
OpenWindowVic.focus();
}
}
var OpenWindowVic;
var CancelSign = 0;
function OpenWinVic(args,NewWindowName)
{
var sign;
if(OpenWindowVic)
{
sign = !OpenWindowVic.closed;
}
else
{
sign = false;
}
if (!sign)
{
OpenWindowVic = OpenWindow(args,NewWindowName);
}
else
{
OpenWindowVic.focus();
}
}
if(OpenWindowVic)
if (!sign) if(变量) js这样写是什么意思啊,还有上面程序是实现什么功能啊?