???? ??
history ??
length: ?? ??? ?
go(n): "???"? "??"? ??? ??? ? ????.
history. go(0) ???? ????
history.go(-1) ??
History.go(1) ??? ???
history.go(3) ??? ???
-
forward(): ????? "???" ??? ??
back(): ????? "??" ??? ??
<!DOCTYPE HTML> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <title>php.cn</title> </head> <body > <a href="http://ipnx.cn">php中文網(wǎng)</a> <input type="button" value="前進一步" onclick="history.go(1)"> </body> </html>