代码语言:javascript 代码运行次数:0 运行 AI代码解释 publicfinal intgetMeasuredWidth(){returnmMeasuredWidth&MEASURED_SIZE_MASK;// getMeasuredWidth()的返回值是mMeasuredWidth(MEASURED_SIZE_MASK = 静态常量 = 限制mMeasuredWidth大小)// 该值的赋值来源:Measure过程中的setMeasuredDimension() -> 分析1//}/*...
1.1 The screen size The screen size is the width and height of the screen: a monitor or a mobile screen. window.screen is the object that holds the screen size information. Here's how to access the screen width and height: const screenWidth = window.screen.width; const screenHeight = ...
某些浏览器:document.body.scrollLeft/Top 代码语言:javascript 代码运行次数:0 运行 AI代码解释 //封装一个获取页面滚出去距离的浏览器兼容性函数:利用逻辑或的短路functiongetPageScroll(){varscrollLeft=window.pageXOffset||document.documentElement.scrollLeft||document.body.scrollLeft||0;varscrollTop=window.pageYOf...
2.1基础版: functiongetStyle(obj, attr){if(obj.currentStyle){returnobj.currentStyle[attr]; }else{returngetComputedStyle(obj,null)[attr]; } } window.onload=function(){varoDiv=document.getElementById('div1'); alert(getStyle(oDiv,'backgroundColor')); } 2.2简洁版: functiongetStyle(obj, attr) ...
How to get the real screen size(screen resolution) by using js 获取用户屏幕的真实像素分辨率, 屏幕实际尺寸 window.devicePixelRatio 设备像素比 screen resolution 屏幕分辨率 functiongetResolution() {constrealWidth =window.screen.width*window.devicePixelRatio;constrealHeight =window.screen.height*window.dev...
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.
// 私有变量和保护变量以下划线开头int _iWindowSize = 900;// 公共变量正常命名int iWindowSize = 900;/ 常量全部大写,并以下划线连接int I_WINDOW_SIZE = 900;3. 说明变量用途 这一点非常简单,但也最常见,且最容易被忘记。对于查看代码的其他开发人员来说,最令人沮丧的事情就是看到一个具有误导性名称...
Get a virtual machine with VM Size Properties Sample request HTTP Java Python Go JavaScript dotnet HTTP Copy GET https://management.azure.com/subscriptions/{subscription-id}/resourceGroups/myResourceGroup/providers/Microsoft.Compute/virtualMachines/myVM?api-version=2024-11-01 Sample response Status...
font-size: 32px; background-color: #888888; border: none; width: 300px; height: 100px; text-align: center; margin: auto; } window.onload = function () { var but_submit = document.getElementById("but_submit"); var p_submit = document.getElementById("...
AJAX全称为Asynchronous JavaScript And XML,就是异步的 JS 和 XML。 通过AJAX可以在浏览器中向服务器发送异步请求,最大的优势: 无刷新获取数据。 AJAX不是新的编程语言,而是一种将现有的标准组合在一起使用的新方式。 2、XML简介 XML 可扩展标记语言。