查看源代码的禁止几种方法：

直接按F12 Ctrl+Shift+I查看 鼠标点击右键查看 Ctrl+u=view-source:+url

以上的几种方法都可以查看到网站的源代码，我们可以通过使用JavaScript来屏蔽掉这三种状态从而实现禁止查看源代码成效。网页

<span class="hljs-tag"><<span class="hljs-name">script</span>></span><span class="javascript"> <span class="hljs-built_in">window</span>.onload = <span class="hljs-function"><span class="hljs-keyword">function</span>()</span>{ <span class="hljs-built_in">document</span>.onkeydown = <span class="hljs-function"><span class="hljs-keyword">function</span>()</span>{ <span class="hljs-keyword">var</span> e = <span class="hljs-built_in">window</span>.event ||<span class="hljs-built_in">arguments</span>[<span class="hljs-number">0</span>]; <span class="hljs-comment">//屏蔽F12</span> <span class="hljs-keyword">if</span>(e.keyCode == <span class="hljs-number">123</span>){ <span class="hljs-keyword">return</span><span class="hljs-literal">false</span>; <span class="hljs-comment">//屏蔽Ctrl+Shift+I</span> }<span class="hljs-keyword">else</span><span class="hljs-keyword">if</span>((e.<a target="_blank" href="https://www.kaiyuanyuanma.com/tag/786.html" title="View all posts in ctrl">ctrl</a>Key)&&(e.shiftKey)&&(e.keyCode == <span class="hljs-number">73</span>)){ <span class="hljs-keyword">return</span><span class="hljs-literal">false</span>; <span class="hljs-comment">//屏蔽Shift+F10</span> }<span class="hljs-keyword">else</span><span class="hljs-keyword">if</span>((e.shiftKey)&&(e.keyCode == <span class="hljs-number">121</span>)){ <span class="hljs-keyword">return</span><span class="hljs-literal">false</span>; <span class="hljs-comment">//屏蔽Ctrl+U</span> }<span class="hljs-keyword">else</span><span class="hljs-keyword">if</span>((e.ctrlKey)&&(e.keyCode == <span class="hljs-number">85</span>)){ <span class="hljs-keyword">return</span><span class="hljs-literal">false</span>; } }; <span class="hljs-comment">//屏蔽右键单击</span> <span class="hljs-built_in">document</span>.oncontextmenu = <span class="hljs-function"><span class="hljs-keyword">function</span>()</span>{ alert(<span class="hljs-string">"右键被禁止，源代不需要登录就能玩的游戏网站拷贝内容请按CTRL+C！禁止"</span>); <span class="hljs-keyword">return</span><span class="hljs-literal">false</span>; } } </span><span class="hljs-tag"></<span class="hljs-name">script</span>></span> <span class="hljs-tag"><<span class="hljs-name">script</span>></span><span class="javascript"> <span class="hljs-built_in">window</span>.onload = <span class="hljs-function"><span class="hljs-keyword">function</span>() </span>{ <span class="hljs-built_in">document</span>.onkeydown = <span class="hljs-function"><span class="hljs-keyword">function</span>() </span>{ <span class="hljs-keyword">var</span> e = <span class="hljs-built_in">window</span>.event || <span class="hljs-built_in">arguments</span>[<span class="hljs-number">0</span>]; <span class="hljs-comment">//屏蔽F12</span> <span class="hljs-keyword">if</span>(e.keyCode == <span class="hljs-number">123</span>) { <span class="hljs-keyword">return</span> <span class="hljs-literal">false</span>; <span class="hljs-comment">//屏蔽Ctrl+Shift+I</span> } <span class="hljs-keyword">else</span> <span class="hljs-keyword">if</span>((e.<a target="_blank" href="https://www.kaiyuanyuanma.com/tag/786.html" title="View all posts in ctrl">ctrl</a>Key) && (e.shiftKey) && (e.keyCode == <span class="hljs-number">73</span>)) { <span class="hljs-keyword">return</span> <span class="hljs-literal">false</span>; <span class="hljs-comment">//屏蔽Shift+F10</span> } <span class="hljs-keyword">else</span> <span class="hljs-keyword">if</span>((e.shiftKey) && (e.keyCode == <span class="hljs-number">121</span>)){ <span class="hljs-keyword">return</span> <span class="hljs-literal">false</span>; <span class="hljs-comment">//屏蔽Ctrl+U</span> } <span class="hljs-keyword">else</span> <span class="hljs-keyword">if</span>((e.ctrlKey) && (e.keyCode == <span class="hljs-number">85</span>)){ <span class="hljs-keyword">return</span> <span class="hljs-literal">false</span>; } }; <span class="hljs-comment">//屏蔽右键单击</span> <span class="hljs-built_in">document</span>.oncontextmenu = <span class="hljs-function"><span class="hljs-keyword">function</span>() </span>{ alert(<span class="hljs-string">"右键被禁止，网页拷贝内容请按CTRL+C！源代"</span>); <span class="hljs-keyword">return</span> <span class="hljs-literal">false</span>; } } </span><span class="hljs-tag"></<span class="hljs-name">script</span>></span> <script> window.onload = function() { document.onkeydown = function() { var e = window.event || arguments[0]; //屏蔽F12 if(e.keyCode == 123) { return false; //屏蔽Ctrl+Shift+I } else if((e.ctrlKey) && (e.shiftKey) && (e.keyCode == 73)) { return false; //屏蔽Shift+F10 } else if((e.shiftKey) && (e.keyCode == 121)){ return false; //屏蔽Ctrl+U } else if((e.ctrlKey) && (e.keyCode == 85)){ return false; } }; //屏蔽右键单击 document.oncontextmenu = function() { alert("右键被禁止，禁止拷贝内容请按CTRL+C！网页"); return false; } } </script>

经过JS压缩后的源代不需要登录就能玩的游戏网站代码如下：

<span class="hljs-tag"><<span class="hljs-name">script</span>></span><span class="javascript"><span class="hljs-built_in">window</span>.onload=<span class="hljs-function"><span class="hljs-keyword">function</span>()</span>{<span class="hljs-built_in">document</span>.onkeydown=<span class="hljs-function"><span class="hljs-keyword">function</span>()</span>{<span class="hljs-keyword">var</span> e=<span class="hljs-built_in">window</span>.event||<span class="hljs-built_in">arguments</span>[<span class="hljs-number">0</span>];<span class="hljs-keyword">if</span>(e.keyCode==<span class="hljs-number">123</span>){<span class="hljs-keyword">return</span><span class="hljs-literal">false</span>}<span class="hljs-keyword">else</span>{<span class="hljs-keyword">if</span>((e.ctrlKey)&&(e.shiftKey)&&(e.keyCode==<span class="hljs-number">73</span>)){<span class="hljs-keyword">return</span><span class="hljs-literal">false</span>}<span class="hljs-keyword">else</span>{<span class="hljs-keyword">if</span>((e.shiftKey)&&(e.keyCode==<span class="hljs-number">121</span>)){<span class="hljs-keyword">return</span><span class="hljs-literal">false</span>}<span class="hljs-keyword">else</span>{<span class="hljs-keyword">if</span>((e.ctrlKey)&&(e.keyCode==<span class="hljs-number">85</span>)){<span class="hljs-keyword">return</span><span class="hljs-literal">false</span>}}}}};<span class="hljs-built_in">document</span>.oncontextmenu=<span class="hljs-function"><span class="hljs-keyword">function</span>()</span>{alert(<span class="hljs-string">"右键被禁止，拷贝内容请按CTRL+C！禁止"</span>);<span class="hljs-keyword">return</span><span class="hljs-literal">false</span>}};</span><span class="hljs-tag"></<span class="hljs-name">script</span>></span> <span class="hljs-tag"><<span class="hljs-name">script</span>></span><span class="javascript"><span class="hljs-built_in">window</span>.onload=<span class="hljs-function"><span class="hljs-keyword">function</span>()</span>{<span class="hljs-built_in">document</span>.onkeydown=<span class="hljs-function"><span class="hljs-keyword">function</span>()</span>{<span class="hljs-keyword">var</span> e=<span class="hljs-built_in">window</span>.event||<span class="hljs-built_in">arguments</span>[<span class="hljs-number">0</span>];<span class="hljs-keyword">if</span>(e.keyCode==<span class="hljs-number">123</span>){<span class="hljs-keyword">return</span> <span class="hljs-literal">false</span>}<span class="hljs-keyword">else</span>{<span class="hljs-keyword">if</span>((e.ctrlKey)&&(e.shiftKey)&&(e.keyCode==<span class="hljs-number">73</span>)){<span class="hljs-keyword">return</span> <span class="hljs-literal">false</span>}<span class="hljs-keyword">else</span>{<span class="hljs-keyword">if</span>((e.shiftKey)&&(e.keyCode==<span class="hljs-number">121</span>)){<span class="hljs-keyword">return</span> <span class="hljs-literal">false</span>}<span class="hljs-keyword">else</span>{<span class="hljs-keyword">if</span>((e.ctrlKey)&&(e.keyCode==<span class="hljs-number">85</span>)){<span class="hljs-keyword">return</span> <span class="hljs-literal">false</span>}}}}};<span class="hljs-built_in">document</span>.oncontextmenu=<span class="hljs-function"><span class="hljs-keyword">function</span>()</span>{alert(<span class="hljs-string">"右键被禁止，网页拷贝内容请按CTRL+C！源代"</span>);<span class="hljs-keyword">return</span> <span class="hljs-literal">false</span>}};</span><span class="hljs-tag"></<span class="hljs-name">script</span>></span> <script>window.onload=function(){document.onkeydown=function(){var e=window.event||arguments[0];if(e.keyCode==123){return false}else{if((e.ctrlKey)&&(e.shiftKey)&&(e.keyCode==73)){return false}else{if((e.shiftKey)&&(e.keyCode==121)){return false}else{if((e.ctrlKey)&&(e.keyCode==85)){return false}}}}};document.oncontextmenu=function(){alert("右键被禁止，禁止拷贝内容请按CTRL+C！网页");return false}};</script>

真正能实现源代码的源代屏蔽，单纯的JS是不可能完全屏蔽的!这些脚本只能简易防止小白，对计算机老鸟、大神是无法作用的。并且现在很多浏览器自带有查看网页源代码的功能。

其他相关

一、屏蔽F12 审查元素 <span class="hljs-built_in">document</span>.onkeydown = <span class="hljs-function"><span class="hljs-keyword">function</span>()</span>{ <span class="hljs-keyword">if</span>(<span class="hljs-built_in">window</span>.event &&<span class="hljs-built_in">window</span>.event.keyCode == <span class="hljs-number">123</span>){ alert(<span class="hljs-string">"F12被禁用"</span>); event.keyCode=<span class="hljs-number">0</span>; event.returnValue=<span class="hljs-literal">false</span>; } <span class="hljs-keyword">if</span>(<span class="hljs-built_in">window</span>.event &&<span class="hljs-built_in">window</span>.event.keyCode == <span class="hljs-number">13</span>){ <span class="hljs-built_in">window</span>.event.keyCode = <span class="hljs-number">505</span>; } <span class="hljs-keyword">if</span>(<span class="hljs-built_in">window</span>.event &&<span class="hljs-built_in">window</span>.event.keyCode == <span class="hljs-number">8</span>){ alert(str+<span class="hljs-string">"n请使用Del键进行字符的移除操作！"</span>); <span class="hljs-built_in">window</span>.event.returnValue=<span class="hljs-literal">false</span>; } } <span class="hljs-built_in">document</span>.onkeydown = <span class="hljs-function"><span class="hljs-keyword">function</span>()</span>{ <span class="hljs-keyword">if</span>(<span class="hljs-built_in">window</span>.event && <span class="hljs-built_in">window</span>.event.keyCode == <span class="hljs-number">123</span>) { alert(<span class="hljs-string">"F12被禁用"</span>); event.keyCode=<span class="hljs-number">0</span>; event.returnValue=<span class="hljs-literal">false</span>; } <span class="hljs-keyword">if</span>(<span class="hljs-built_in">window</span>.event && <span class="hljs-built_in">window</span>.event.keyCode == <span class="hljs-number">13</span>) { <span class="hljs-built_in">window</span>.event.keyCode = <span class="hljs-number">505</span>; } <span class="hljs-keyword">if</span>(<span class="hljs-built_in">window</span>.event && <span class="hljs-built_in">window</span>.event.keyCode == <span class="hljs-number">8</span>) { alert(str+<span class="hljs-string">"n请使用Del键进行字符的移除操作！"</span>); <span class="hljs-built_in">window</span>.event.returnValue=<span class="hljs-literal">false</span>; } } document.onkeydown = function(){ if(window.event && window.event.keyCode == 123) { alert("F12被禁用"); event.keyCode=0; event.returnValue=false; } if(window.event && window.event.keyCode == 13) { window.event.keyCode = 505; } if(window.event && window.event.keyCode == 8) { alert(str+"n请使用Del键进行字符的移除操作！"); window.event.returnValue=false; } }

除了屏蔽这个，我们还有其他有趣的设置：

二、屏蔽右键菜单 <span class="hljs-built_in">document</span>.oncontextmenu = <span class="hljs-function"><span class="hljs-keyword">function</span>(<span class="hljs-params">event</span>)</span>{ <span class="hljs-keyword">if</span>(<span class="hljs-built_in">window</span>.event){ event = <span class="hljs-built_in">window</span>.event; }<span class="hljs-keyword">try</span>{ <span class="hljs-keyword">var</span> the = event.srcElement; <span class="hljs-keyword">if</span>(!((the.tagName == <span class="hljs-string">"INPUT"</span>&& the.type.toLowerCase() == <span class="hljs-string">"text"</span>)|| the.tagName == <span class="hljs-string">"TEXTAREA"</span>)){ <span class="hljs-keyword">return</span><span class="hljs-literal">false</span>; } <span class="hljs-keyword">return</span><span class="hljs-literal">true</span>; }<span class="hljs-keyword">catch</span>(e){ <span class="hljs-keyword">return</span><span class="hljs-literal">false</span>; } } <span class="hljs-built_in">document</span>.oncontextmenu = <span class="hljs-function"><span class="hljs-keyword">function</span> (<span class="hljs-params">event</span>)</span>{ <span class="hljs-keyword">if</span>(<span class="hljs-built_in">window</span>.event){ event = <span class="hljs-built_in">window</span>.event; }<span class="hljs-keyword">try</span>{ <span class="hljs-keyword">var</span> the = event.srcElement; <span class="hljs-keyword">if</span> (!((the.tagName == <span class="hljs-string">"INPUT"</span> && the.type.toLowerCase() == <span class="hljs-string">"text"</span>) || the.tagName == <span class="hljs-string">"TEXTAREA"</span>)){ <span class="hljs-keyword">return</span> <span class="hljs-literal">false</span>; } <span class="hljs-keyword">return</span> <span class="hljs-literal">true</span>; }<span class="hljs-keyword">catch</span> (e){ <span class="hljs-keyword">return</span> <span class="hljs-literal">false</span>; } } document.oncontextmenu = function (event){ if(window.event){ event = window.event; }try{ var the = event.srcElement; if (!((the.tagName == "INPUT" && the.type.toLowerCase() == "text") || the.tagName == "TEXTAREA")){ return false; } return true; }catch (e){ return false; } } 三、屏蔽粘贴 <span class="hljs-built_in">document</span>.onpaste = <span class="hljs-function"><span class="hljs-keyword">function</span>(<span class="hljs-params">event</span>)</span>{ <span class="hljs-keyword">if</span>(<span class="hljs-built_in">window</span>.event){ event = <span class="hljs-built_in">window</span>.event; }<span class="hljs-keyword">try</span>{ <span class="hljs-keyword">var</span> the = event.srcElement; <span class="hljs-keyword">if</span>(!((the.tagName == <span class="hljs-string">"INPUT"</span>&& the.type.toLowerCase() == <span class="hljs-string">"text"</span>)|| the.tagName == <span class="hljs-string">"TEXTAREA"</span>)){ <span class="hljs-keyword">return</span><span class="hljs-literal">false</span>; } <span class="hljs-keyword">return</span><span class="hljs-literal">true</span>; }<span class="hljs-keyword">catch</span>(e){ <span class="hljs-keyword">return</span><span class="hljs-literal">false</span>; } } <span class="hljs-built_in">document</span>.onpaste = <span class="hljs-function"><span class="hljs-keyword">function</span> (<span class="hljs-params">event</span>)</span>{ <span class="hljs-keyword">if</span>(<span class="hljs-built_in">window</span>.event){ event = <span class="hljs-built_in">window</span>.event; }<span class="hljs-keyword">try</span>{ <span class="hljs-keyword">var</span> the = event.srcElement; <span class="hljs-keyword">if</span> (!((the.tagName == <span class="hljs-string">"INPUT"</span> && the.type.toLowerCase() == <span class="hljs-string">"text"</span>) || the.tagName == <span class="hljs-string">"TEXTAREA"</span>)){ <span class="hljs-keyword">return</span> <span class="hljs-literal">false</span>; } <span class="hljs-keyword">return</span> <span class="hljs-literal">true</span>; }<span class="hljs-keyword">catch</span> (e){ <span class="hljs-keyword">return</span> <span class="hljs-literal">false</span>; } } document.onpaste = function (event){ if(window.event){ event = window.event; }try{ var the = event.srcElement; if (!((the.tagName == "INPUT" && the.type.toLowerCase() == "text") || the.tagName == "TEXTAREA")){ return false; } return true; }catch (e){ return false; } } 四、屏蔽拷贝 <span class="hljs-built_in">document</span>.oncopy = <span class="hljs-function"><span class="hljs-keyword">function</span>(<span class="hljs-params">event</span>)</span>{ <span class="hljs-keyword">if</span>(<span class="hljs-built_in">window</span>.event){ event = <span class="hljs-built_in">window</span>.event; }<span class="hljs-keyword">try</span>{ <span class="hljs-keyword">var</span> the = event.srcElement; <span class="hljs-keyword">if</span>(!((the.tagName == <span class="hljs-string">"INPUT"</span>&& the.type.toLowerCase() == <span class="hljs-string">"text"</span>)|| the.tagName == <span class="hljs-string">"TEXTAREA"</span>)){ <span class="hljs-keyword">return</span><span class="hljs-literal">false</span>; } <span class="hljs-keyword">return</span><span class="hljs-literal">true</span>; }<span class="hljs-keyword">catch</span>(e){ <span class="hljs-keyword">return</span><span class="hljs-literal">false</span>; } } <span class="hljs-built_in">document</span>.oncopy = <span class="hljs-function"><span class="hljs-keyword">function</span> (<span class="hljs-params">event</span>)</span>{ <span class="hljs-keyword">if</span>(<span class="hljs-built_in">window</span>.event){ event = <span class="hljs-built_in">window</span>.event; }<span class="hljs-keyword">try</span>{ <span class="hljs-keyword">var</span> the = event.srcElement; <span class="hljs-keyword">if</span>(!((the.tagName == <span class="hljs-string">"INPUT"</span> && the.type.toLowerCase() == <span class="hljs-string">"text"</span>) || the.tagName == <span class="hljs-string">"TEXTAREA"</span>)){ <span class="hljs-keyword">return</span> <span class="hljs-literal">false</span>; } <span class="hljs-keyword">return</span> <span class="hljs-literal">true</span>; }<span class="hljs-keyword">catch</span> (e){ <span class="hljs-keyword">return</span> <span class="hljs-literal">false</span>; } } document.oncopy = function (event){ if(window.event){ event = window.event; }try{ var the = event.srcElement; if(!((the.tagName == "INPUT" && the.type.toLowerCase() == "text") || the.tagName == "TEXTAREA")){ return false; } return true; }catch (e){ return false; } } 五、屏蔽裁剪 <span class="hljs-built_in">document</span>.oncut = <span class="hljs-function"><span class="hljs-keyword">function</span>(<span class="hljs-params">event</span>)</span>{ <span class="hljs-keyword">if</span>(<span class="hljs-built_in">window</span>.event){ event = <span class="hljs-built_in">window</span>.event; }<span class="hljs-keyword">try</span>{ <span class="hljs-keyword">var</span> the = event.srcElement; <span class="hljs-keyword">if</span>(!((the.tagName == <span class="hljs-string">"INPUT"</span>&& the.type.toLowerCase() == <span class="hljs-string">"text"</span>)|| the.tagName == <span class="hljs-string">"TEXTAREA"</span>)){ <span class="hljs-keyword">return</span><span class="hljs-literal">false</span>; } <span class="hljs-keyword">return</span><span class="hljs-literal">true</span>; }<span class="hljs-keyword">catch</span>(e){ <span class="hljs-keyword">return</span><span class="hljs-literal">false</span>; } } <span class="hljs-built_in">document</span>.oncut = <span class="hljs-function"><span class="hljs-keyword">function</span> (<span class="hljs-params">event</span>)</span>{ <span class="hljs-keyword">if</span>(<span class="hljs-built_in">window</span>.event){ event = <span class="hljs-built_in">window</span>.event; }<span class="hljs-keyword">try</span>{ <span class="hljs-keyword">var</span> the = event.srcElement; <span class="hljs-keyword">if</span>(!((the.tagName == <span class="hljs-string">"INPUT"</span> && the.type.toLowerCase() == <span class="hljs-string">"text"</span>) || the.tagName == <span class="hljs-string">"TEXTAREA"</span>)){ <span class="hljs-keyword">return</span> <span class="hljs-literal">false</span>; } <span class="hljs-keyword">return</span> <span class="hljs-literal">true</span>; }<span class="hljs-keyword">catch</span> (e){ <span class="hljs-keyword">return</span> <span class="hljs-literal">false</span>; } } document.oncut = function (event){ if(window.event){ event = window.event; }try{ var the = event.srcElement; if(!((the.tagName == "INPUT" && the.type.toLowerCase() == "text") || the.tagName == "TEXTAREA")){ return false; } return true; }catch (e){ return false; } }

这种很适合小说网站，毕竟版权珍贵，被别人随便copy走内容就不好了

六、屏蔽选中 <span class="hljs-built_in">document</span>.onselectstart = <span class="hljs-function"><span class="hljs-keyword">function</span>(<span class="hljs-params">event</span>)</span>{ <span class="hljs-keyword">if</span>(<span class="hljs-built_in">window</span>.event){ event = <span class="hljs-built_in">window</span>.event; }<span class="hljs-keyword">try</span>{ <span class="hljs-keyword">var</span> the = event.srcElement; <span class="hljs-keyword">if</span>(!((the.tagName == <span class="hljs-string">"INPUT"</span>&& the.type.toLowerCase() == <span class="hljs-string">"text"</span>)|| the.tagName == <span class="hljs-string">"TEXTAREA"</span>)){ <span class="hljs-keyword">return</span><span class="hljs-literal">false</span>; } <span class="hljs-keyword">return</span><span class="hljs-literal">true</span>; }<span class="hljs-keyword">catch</span>(e){ <span class="hljs-keyword">return</span><span class="hljs-literal">false</span>; } } <span class="hljs-built_in">document</span>.onselectstart = <span class="hljs-function"><span class="hljs-keyword">function</span> (<span class="hljs-params">event</span>)</span>{ <span class="hljs-keyword">if</span>(<span class="hljs-built_in">window</span>.event){ event = <span class="hljs-built_in">window</span>.event; }<span class="hljs-keyword">try</span>{ <span class="hljs-keyword">var</span> the = event.srcElement; <span class="hljs-keyword">if</span> (!((the.tagName == <span class="hljs-string">"INPUT"</span> && the.type.toLowerCase() == <span class="hljs-string">"text"</span>) || the.tagName == <span class="hljs-string">"TEXTAREA"</span>)){ <span class="hljs-keyword">return</span> <span class="hljs-literal">false</span>; } <span class="hljs-keyword">return</span> <span class="hljs-literal">true</span>; } <span class="hljs-keyword">catch</span> (e) { <span class="hljs-keyword">return</span> <span class="hljs-literal">false</span>; } } document.onselectstart = function (event){ if(window.event){ event = window.event; }try{ var the = event.srcElement; if (!((the.tagName == "INPUT" && the.type.toLowerCase() == "text") || the.tagName == "TEXTAREA")){ return false; } return true; } catch (e) { return false; } } 内容看完了