<!DOCTYPE HTML><html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><title>History对象</title></head><script type="text/javascript"> var HL = window.history.length//back(),forward(),go(); document.write(HL);</script><body></body></html>
转载于:https://www.cnblogs.com/swust-li/p/4506996.html
