js 返回上一页

本文介绍了一种使用JavaScript实现网页后退功能的方法。通过<input>标签创建按钮,并利用onclick事件调用history对象的go方法实现后退功能。同时,通过Response.Write输出JavaScript代码实现弹窗提示并返回上一页。
<input type="button" value="后退" onclick="javascript: history.go(-1);">
Response.Write "<script>alert('点此返回。');history.back();</Script>"
<code><span style="color: #000000"> <span style="color: #0000BB"><?php <br />error_reporting</span><span style="color: #007700">(</span><span style="color: #0000BB">0</span><span style="color: #007700">); <br /></span><span style="color: #0000BB">highlight_file</span><span style="color: #007700">(</span><span style="color: #0000BB">__FILE__</span><span style="color: #007700">); <br /> <br />class&nbsp;</span><span style="color: #0000BB">hacker</span><span style="color: #007700">{ <br />&nbsp;&nbsp;&nbsp;&nbsp;public&nbsp;</span><span style="color: #0000BB">$cmd</span><span style="color: #007700">; <br />&nbsp;&nbsp;&nbsp;&nbsp;public&nbsp;</span><span style="color: #0000BB">$a</span><span style="color: #007700">; <br />&nbsp;&nbsp;&nbsp;&nbsp;public&nbsp;function&nbsp;</span><span style="color: #0000BB">__destruct</span><span style="color: #007700">(){ <br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if(</span><span style="color: #DD0000">'hahaha'&nbsp;</span><span style="color: #007700">===&nbsp;</span><span style="color: #0000BB">preg_replace</span><span style="color: #007700">(</span><span style="color: #DD0000">'/;+/'</span><span style="color: #007700">,</span><span style="color: #DD0000">'hahaha'</span><span style="color: #007700">,</span><span style="color: #0000BB">preg_replace</span><span style="color: #007700">(</span><span style="color: #DD0000">'/[A-Za-z_\(\)]+/'</span><span style="color: #007700">,</span><span style="color: #DD0000">''</span><span style="color: #007700">,</span><span style="color: #0000BB">$this</span><span style="color: #007700">-></span><span style="color: #0000BB">cmd</span><span style="color: #007700">))){ <br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;eval(</span><span style="color: #0000BB">$this</span><span style="color: #007700">-></span><span style="color: #0000BB">cmd</span><span style="color: #007700">.</span><span style="color: #DD0000">'hahaha!'</span><span style="color: #007700">); <br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}&nbsp;else&nbsp;{ <br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;echo&nbsp;</span><span style="color: #DD0000">'nonono'</span><span style="color: #007700">; <br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;} <br />&nbsp;&nbsp;&nbsp;&nbsp;} <br />} <br /> <br />if(isset(</span><span style="color: #0000BB">$_POST</span><span style="color: #007700">[</span><span style="color: #DD0000">'file'</span><span style="color: #007700">])) <br />{ <br />&nbsp;&nbsp;&nbsp;&nbsp;if(</span><span style="color: #0000BB">preg_match</span><span style="color: #007700">(</span><span style="color: #DD0000">'/^phar:\/\//i'</span><span style="color: #007700">,</span><span style="color: #0000BB">$_POST</span><span style="color: #007700">[</span><span style="color: #DD0000">'file'</span><span style="color: #007700">])) <br />&nbsp;&nbsp;&nbsp;&nbsp;{ <br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;die(</span><span style="color: #DD0000">"nonono"</span><span style="color: #007700">); <br />&nbsp;&nbsp;&nbsp;&nbsp;} <br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">file_get_contents</span><span style="color: #007700">(</span><span style="color: #0000BB">$_POST</span><span style="color: #007700">[</span><span style="color: #DD0000">'file'</span><span style="color: #007700">]); <br />} <br /></span><span style="color: #0000BB">?> <br /></span> <br /></span> </code> 怎么出来这些了啊
最新发布
10-05
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