


Forum special effects code collection (outdated forwarding - good)_javascript skills
1. Overflow settings when the content overflows (set whether the set object displays scroll bars)
overflow-x Settings when the horizontal content overflows
overflow-y Settings when the vertical content overflows
The above three The values of the attribute settings are visible (default value), scroll, hidden, and auto.
2. scrollbar-3d-light-color The color of the bright edge of the three-dimensional scroll bar (set the color of the scroll bar)
scrollbar-arrow-color The color of the triangular arrows on the up and down buttons
scrollbar-base-color The basic color of the scroll bar
scrollbar-dark-shadow-color The color of the strong shadow of the three-dimensional scroll bar
scrollbar-face-color The color of the protruding part of the three-dimensional scroll bar
scrollbar-highlight-color The color of the blank part of the scroll bar
scrollbar -shadow-color The color of the shadow of the three-dimensional scroll bar
We will explain the above style attributes through several examples:
1. Let the browser window never have scroll bars
No horizontal scroll bar
No vertical scrollbar
No scrollbar
or style="overflow:hidden">
2. Set the scroll bar of the multi-line text box
No horizontal scroll bar
No vertical scroll bar
No scroll bar
or
3. Set the color of the window scroll bar
Set the window scroll bar The color is red
scrollbar-base-color sets the basic color. Generally, you only need to set this attribute to change the scroll bar color.
Add some special effects:
4. Define a class in the style sheet file and call the style sheet.
.coolscrollbar{scrollbar-arrow-color:yellow;scrollbar-base-color:lightsalmon;}
Call like this:
Borderless window code//Step 1: Add the following code to the
area
//Step 2: Add the following code Join the
area <script> <BR>minimizebar="minimize.gif"; //视窗右上角最小化「按钮」的图片 <BR>minimizebar2="minimize2.gif"; //滑鼠悬停时最小化「按钮」的图片 <BR>closebar="close.gif"; //视窗右上角关闭「按钮」的图片 <BR>closebar2="close2.gif"; //滑鼠悬停时关闭「按钮」的图片 <BR>icon="icon.gif"; //视窗左上角的小图标 <br><br>function noBorderWin(fileName,w,h,titleBg,moveBg,titleColor,titleWord,scr) //定义一个弹出无边视窗的函数,能数意义见下面「参数说明」,实际使用见最後的实例。 <BR>/* <BR>------------------参数说明------------------- <BR>fileName :无边视窗中显示的文件。 <BR>w :视窗的宽度。 <BR>h :视窗的高度。 <BR>titleBg :视窗「标题栏」的背景色以及视窗边框颜色。 <BR>moveBg :视窗拖动时「标题栏」的背景色以及视窗边框颜色。 <BR>titleColor :视窗「标题栏」文字的颜色。 <BR>titleWord :视窗「标题栏」的文字。 <BR>scr :是否出现卷轴。取值yes/no或者1/0。 <BR>-------------------------------------------- <BR>*/ <BR>{ <BR>var contents="<html>"+ <BR>"<head>"+ <BR>"<title>"+titleWord+""+ <BR>"<META http-equiv=\"Content-Type\" content=\"text/html; charset=gb2312\">"+ <BR>"<object id=hhctrl type='application/x-oleobject' classid='clsid:adb880a6-d8ff-11cf-9377-00aa003b7a11'><param name='Command' value='minimize'>"+ <BR>""+ <BR>"<body topmargin=0 leftmargin=0 scroll=no onselectstart='return false' ondragstart='return false'>"+ <BR>" <table height=100% width=100% cellpadding=0 cellspacing=1 bgcolor="+titleBg+" id=mainTab>"+ <BR>" <tr height=18 style=cursor:default; onmousedown='x=event.x;y=event.y;setCapture();mainTab.bgColor=\""+moveBg+"\";' onmouseup='releaseCapture();mainTab.bgColor=\""+titleBg+"\";' onmousemove='if(event.button==1)self.moveTo(screenLeft+event.x-x,screenTop+event.y-y);'>"+ <BR>" <td width=18 align=center><img src="/static/imghwm/default1.png" data-src="+icon+" class="lazy" height=12 style="max-width:90%"Forum special effects code collection (outdated forwarding - good)_javascript skills" >"+ <BR>" <td width="+w+"><span style=font-size:12px;color:"+titleColor+";font-family:宋体;position:relative;top:1px;>"+titleWord+""+ <BR>" <td width=14><img src="/static/imghwm/default1.png" data-src="+minimizebar+" class="lazy" border=0 style="max-width:90%" onmouseout=this.+minimizebar+"'>"+ <BR>" <td width=13><img src="/static/imghwm/default1.png" data-src="+closebar+" class="lazy" border=0 style="max-width:90%" onmouseout=this.+closebar+"'>"+ <BR>" "+ <BR>" <tr height=*>"+ <BR>" <td colspan=4>"+ <BR>" <iframe name=nbw_v6_iframe src="+fileName+" scrolling="+scr+" width=100% height=100% frameborder=0>"+ <BR>" "+ <BR>" "+ <BR>" "+ <BR>""+ <BR>""; <BR>pop=window.open("","_blank","fullscreen=yes"); <BR>pop.resizeTo(w,h); <BR>pop.moveTo((screen.width-w)/2,(screen.height-h)/2); <BR>pop.document.writeln(contents); <BR>if(pop.document.body.clientWidth!=w||pop.document.body.clientHeight!=h) //如果无边视窗不是出现在纯粹的IE视窗中 <BR>{ <BR>temp=window.open("","nbw_v6"); <BR>temp.close(); <BR>window.showModalDialog("about:<"+"script language=javascript>window.open('','nbw_v6','fullscreen=yes');window.close();"+"</"+"script>","","dialogWidth:0px;dialogHeight:0px"); <BR>pop2=window.open("","nbw_v6"); <BR>pop2.resizeTo(w,h); <BR>pop2.moveTo((screen.width-w)/2,(screen.height-h)/2); <BR>pop2.document.writeln(contents); <BR>pop.close(); <BR>} <BR>} <BR></script>open〈/a〉

JavaScript is widely used in websites, mobile applications, desktop applications and server-side programming. 1) In website development, JavaScript operates DOM together with HTML and CSS to achieve dynamic effects and supports frameworks such as jQuery and React. 2) Through ReactNative and Ionic, JavaScript is used to develop cross-platform mobile applications. 3) The Electron framework enables JavaScript to build desktop applications. 4) Node.js allows JavaScript to run on the server side and supports high concurrent requests.

Python is more suitable for data science and automation, while JavaScript is more suitable for front-end and full-stack development. 1. Python performs well in data science and machine learning, using libraries such as NumPy and Pandas for data processing and modeling. 2. Python is concise and efficient in automation and scripting. 3. JavaScript is indispensable in front-end development and is used to build dynamic web pages and single-page applications. 4. JavaScript plays a role in back-end development through Node.js and supports full-stack development.

C and C play a vital role in the JavaScript engine, mainly used to implement interpreters and JIT compilers. 1) C is used to parse JavaScript source code and generate an abstract syntax tree. 2) C is responsible for generating and executing bytecode. 3) C implements the JIT compiler, optimizes and compiles hot-spot code at runtime, and significantly improves the execution efficiency of JavaScript.

JavaScript's application in the real world includes front-end and back-end development. 1) Display front-end applications by building a TODO list application, involving DOM operations and event processing. 2) Build RESTfulAPI through Node.js and Express to demonstrate back-end applications.

The main uses of JavaScript in web development include client interaction, form verification and asynchronous communication. 1) Dynamic content update and user interaction through DOM operations; 2) Client verification is carried out before the user submits data to improve the user experience; 3) Refreshless communication with the server is achieved through AJAX technology.

Understanding how JavaScript engine works internally is important to developers because it helps write more efficient code and understand performance bottlenecks and optimization strategies. 1) The engine's workflow includes three stages: parsing, compiling and execution; 2) During the execution process, the engine will perform dynamic optimization, such as inline cache and hidden classes; 3) Best practices include avoiding global variables, optimizing loops, using const and lets, and avoiding excessive use of closures.

Python is more suitable for beginners, with a smooth learning curve and concise syntax; JavaScript is suitable for front-end development, with a steep learning curve and flexible syntax. 1. Python syntax is intuitive and suitable for data science and back-end development. 2. JavaScript is flexible and widely used in front-end and server-side programming.

Python and JavaScript have their own advantages and disadvantages in terms of community, libraries and resources. 1) The Python community is friendly and suitable for beginners, but the front-end development resources are not as rich as JavaScript. 2) Python is powerful in data science and machine learning libraries, while JavaScript is better in front-end development libraries and frameworks. 3) Both have rich learning resources, but Python is suitable for starting with official documents, while JavaScript is better with MDNWebDocs. The choice should be based on project needs and personal interests.


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