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  • 充电器兼容qi是什么意思 Andrey Suslov/Shutterstock, WPA/Qi Andrey Suslov / Shutterstock,WPA /齐 If you’ve taken the time to shop for a wireless charger, then you’ve probably bumped into the term ...
    充电器兼容qi是什么意思

    充电器兼容qi是什么意思

    An illustration of a wireless charger with the Qi logo.
    Andrey Suslov/Shutterstock, WPA/Qi Andrey Suslov / Shutterstock,WPA /齐

    If you’ve taken the time to shop for a wireless charger, then you’ve probably bumped into the term “Qi-Certified.” But what the heck is Qi, and why should you use a Qi-Certified wireless charger?

    如果您花时间购买无线充电器 ,那么您可能会碰到“ Qi认证”一词。 但是Qi到底是什么,为什么要使用经过Qi认证的无线充电器?

    Qi只是无线充电标准 (Qi Is Just a Wireless Charging Standard)

    Qi (pronounced “chee”) is a standard for wireless energy transmission. It’s a format that’s maintained by the Wireless Power Consortium (WPC), and it aims to standardize wireless charging across all devices in the same way that the USB or Bluetooth standards have standardized data transmission across all devices.

    Qi(发音为“ chee”)是无线能量传输的标准。 这种格式由无线电源联盟(WPC)维护,旨在以与USB或蓝牙标准在所有设备之间标准化的数据传输相同的方式来标准化所有设备上的无线充电。

    But why does wireless charging need to be standardized?

    但是,为什么需要对无线充电进行标准化?

    Well, without a standard like Qi, wireless charging would be a serious pain in the ass. Imagine if every smartphone used its own unique cable instead of Micro-USB, USB-C, or Lightning. Without the Qi standard, that’s the nonsense that you’d have to deal with.

    好吧,如果没有Qi这样的标准,无线充电将是一个沉重的麻烦。 试想一下,如果每个智能手机都使用自己独特的电缆而不是Micro-USB,USB-C或Lightning。 没有Qi标准,这就是您必须处理的废话。

    We say “basically” because, technically speaking, it’s possible for unstandardized wireless chargers to work with unstandardized phones. But co-mingling power standards with unsupported devices is both ineffective and dangerous.

    我们之所以说“基本”,是因为从技术上讲,非标准的无线充电器可以与非标准的手机一起使用。 但是,将功率标准与不受支持的设备混合在一起既无效又危险。

    Qi标准使事情变得安全而轻松 (The Qi Standard Keeps Things Safe and Easy)

    Wireless chargers rely on magnetic induction or magnetic resonance to transmit energy (Qi uses both). It’s sort of like the magnetic field that surrounds the Earth. Your phone contains a coil that converts this magnetic energy into electrical energy, which then charges the battery. Simple, right?

    无线充电器依靠磁感应或磁共振来传输能量(Qi会同时使用)。 有点像环绕地球的磁场。 您的电话包含一个线圈,该线圈将磁能转换为电能,然后为电池充电。 简单吧?

    A girl freaking out while holding an exploding phone. Clearly, she didn't use a Qi-Certified wireless charger.
    HomeArt/Shutterstock 家用艺术/快门

    That’s why it’s technically possible for unstandardized wireless chargers to work unstandardized receivers in phones. But let’s imagine a world without wireless charging standards. You’d run into three big problems:

    这就是为什么非标准的无线充电器在技术上可以在电话中的非标准接收器上工作的原因。 但是,让我们想象一个没有无线充电标准的世界。 您将遇到三个大问题:

    • Overloading Phones: Smartphones have built-in voltage limiters that prevent wired overcharging. But wireless charging relies on a coil, like a coil on an electric stovetop. Without a wireless charging standard, a high powered wireless charger (say, 25 watts) could damage a low-powered wireless phone’s coil (which may have a limited range of 0-5 watts) along with its battery and other internals.

      手机过载:智能手机具有内置的电压限制器,可防止有线过度充电。 但是无线充电依赖于线圈,就像电炉灶上的线圈一样。 如果没有无线充电标准,高功率无线充电器(例如25瓦)可能会损坏低功率无线电话的线圈(可能具有0-5瓦的有限范围)及其电池和其他内部组件。

    • Overheating: This is already a common problem for high-voltage (or cheap) wireless chargers. Without proper power management or ventilation, heat will build up and damage your phone. Enough heat can cause a battery to deteriorate, which can also lead to fires.

      过热:对于高压(或廉价)无线充电器,这已经是一个普遍的问题 。 如果没有适当的电源管理或通风,热量将会积聚并损坏手机。 热量过多会导致电池变质,还可能引起火灾。

    • Heat Transfer to Nearby Objects: Without built-in Foreign Object Detection (FOD), a wireless charger may be inclined to push magnetic energy at things that aren’t phones, like pieces of metal or nearby objects. This can cause overheating, fires, or burns.

      热量到附近物体的传递:如果没有内置的异物检测(FOD),无线充电器可能会倾向于将磁能推向不是手机的东西,例如金属碎片或附近的物体。 这可能会导致过热,火灾或燃烧。

    The Qi wireless charging standard effectively ensures that we’ll never run into these problems. When a phone or charger is Qi-Certified, it’s tested by the Wireless Power Consortium for safety, effectiveness, and compatibility. Qi-Certified devices must operate from 0-30 watts (the Qi standard can go up to 1 kilowatt, but not for phones), pass temperature tests, and comply with Qi FOD standards. They also need to be compatible with all other Qi-Certified devices (phones or chargers), the same way that all Micro-SD cards work with all Micro-SD ports.

    Qi无线充电标准有效地确保了我们永远不会遇到这些问题。 如果手机或充电器获得Qi认证,则将通过无线电源联盟的安全性,有效性和兼容性测试。 经Qi认证的设备必须在0到30瓦之间运行(Qi标准可以达到1千瓦,但不适用于电话),必须通过温度测试,并符合Qi FOD标准。 它们还需要与所有其他经过Qi认证的设备(电话或充电器)兼容,就像所有Micro-SD卡可以与所有Micro-SD端口一起使用一样。

    存在其他无线充电标准,这些标准已死 (Other Wireless Charging Standards Exist, and They’re Dead)

    The Powermat (PMA) from 2009. It operates on the PMA charging standard, which has been superseded by Qi.
    Powermat 动力垫

    We’re talking about Qi as if it’s the only standard for wireless charging. That’s because, while there are other wireless charging standards, they aren’t really relevant anymore.

    我们正在谈论Qi,好像它是无线充电的唯一标准。 这是因为,尽管还有其他无线充电标准,但它们实际上不再相关。

    Honestly, we’re okay with that. Different wireless charging standards don’t play nice together, so it’s better (at a consumer level) for all phones and wireless chargers to support a single format. But for the sake of knowledge and tech history, what are some of the other wireless charging standards?

    老实说,我们对此表示满意。 不同的无线充电标准不能同时发挥作用,因此(在消费者级别)所有电话和无线充电器最好支持单一格式。 但是出于知识和技术历史的原因,其他一些无线充电标准是什么?

    Well, there’s Powermat (PMA), which uses magnetic induction to charge devices. Remember those funky charging mats from 2008 or 2009? Those were PMA wireless chargers. Samsung Galaxy phones (the S8, S9, and S10) still support the PMA standard (alongside Qi), but people complain that the S10 doesn’t work with all PMA chargers.

    好吧,有Powermat(PMA),它使用磁感应为设备充电。 还记得2008年或2009年那些时髦的充电垫吗? 那些是PMA无线充电器。 三星Galaxy手机(S8,S9和S10)仍支持PMA标准(以及Qi),但人们抱怨 S10不能与所有PMA充电器一起使用。

    The other notable wireless charging standard is called AirFuel (formerly Rezence) which relies on magnetic resonance to charge devices. It’s supported by a handful of outdated devices that nobody cares about, including an iPhone 5s case.

    另一个值得注意的无线充电标准称为AirFuel (以前称为Rezence),它依靠磁共振为设备充电。 包括iPhone 5s外壳在内的一些过时的设备 ,无人问津,都支持它。

    Should these alternative wireless charging standards get another shot at life? That’s like asking if it’s okay for another USB standard to come out. It might drive competition a little bit, but it would also make everything more complicated than it needs to be.

    这些替代性无线充电标准是否应该重新焕发生命? 这就好比问问另一个USB标准是否可行。 它可能会稍微推动竞争,但也会使一切变得复杂。

    Qi标准的未来 (The Future of the Qi Standard)

    Wireless charging is a hot topic right now, and it’s hard to tell where things are going. The technology is still in its early stages, and while charging a phone on a plastic stand is nice and all, wireless charging has a lot of potential for future applications.

    无线充电现在是一个热门话题,很难说清事情的发展方向。 这项技术仍处于早期阶段,虽然可以在塑料支架上为手机充电非常好,但无线充电在未来的应用中仍具有很大的潜力。

    Just don’t expect a wirelessly charged car anytime soon.  As of right now, the WPC seems to be laser focused on… kitchen appliances and power tools. Hey, don’t judge, we all have to start somewhere, right?

    只是不要期望很快就会有无线充电的汽车。 截至目前,WPC似乎专注于…… 厨房用具电动工具 。 嘿,不要判断,我们都必须从某个地方开始,对吧?

    A phone charging on a Qi-Certified wireless charging pad.
    Daniel Jedzura/Shutterstock 丹尼尔·杰祖拉/ Shutterstock

    The name of the game here is efficiency and convenience. There’s no point in selling a wireless charger if it wastes power, charges significantly slower than wired solutions, or is too inconvenient for regular use. Right now, the Qi standard can support up to 1 kilowatt of power transfer. By focusing on kitchen appliances and power tools, the WPC will hopefully find a way to perfect wireless kilowatt power transfer, while also figuring out how to build integrated wireless chargers (in counter tops, under carpeting, etc.).

    这里的游戏名称是效率和便利性。 如果无线充电器浪费功率,充电速度明显慢于有线解决方案,或者对于常规使用而言非常不便,那么出售无线充电器毫无意义。 目前,Qi标准可以支持高达1千瓦的功率传输。 通过专注于厨房用具和电动工具,WPC有望找到一种完善无线千瓦功率传输的方法,同时还可以弄清楚如何构建集成的无线充电器(在桌面,地毯下等)。

    不要购买未经认证的无线充电器 (Don’t Buy Un-Certified Wireless Chargers)

    If a wireless charger isn’t Qi-Certified, then you should avoid buying it or using it. Qi-Certified chargers from Anker, CHOETECH, and Yootech are already incredibly cheap, and they come with the guarantee that your phone won’t overheat or become damaged while wirelessly charging.

    如果无线充电器未经Qi认证,则应避免购买或使用它。 来自AnkerCHOETECHYootech的经过Qi认证的充电器已经非常便宜,并且它们提供了保证,在无线充电时您的手机不会过热或损坏。

    If you want to buy an older PMA or AirFuel charger (for whatever reason) make sure that your device complies to their charging standards first. Or, you could just drop $12 on a Qi-Certified charger from CHOETECH.

    如果您想购买旧的PMA或AirFuel充电器(无论出于何种原因),请确保您的设备首先符合其充电标准。 或者,您也可以在CHOETECH的经过Qi认证的充电器上花费12美元。

    Sources: Wireless Power Consortium, MakeZens, Wikipedia

    资料来源: 无线电源联盟MakeZensWikipedia

    翻译自: https://www.howtogeek.com/425885/what-is-a-qi-certified-wireless-charger/

    充电器兼容qi是什么意思

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  • 简要辨析向下兼容、向上兼容、向前兼容、向后兼容四个概念之间的关联与联系。简言之,向上兼容等同于作向前兼容,向下兼容...向前兼容中“前”指“前进”,表示未来的事情,站在旧版本的立场讨论未来版本的兼容性问题。

    摘要:

    简要辨析向下兼容、向上兼容、向前兼容、向后兼容四个概念之间的关联与联系。简言之,向上兼容等同于作向前兼容,向下兼容等同于向后兼容。主流使用的是向前兼容和向后兼容。向后兼容中“后”指“落后”,站在新版本的立场讨论过去版本的兼容性问题。向前兼容中“前”指“前进”,表示未来的事情,站在旧版本的立场讨论未来版本的兼容性问题。

    正文:

    向后兼容(Backward compatibility)

            Backward compatibility is the capability of interoperating with older systems. In telecommunications and computing, a product or technology is backward or downward compatible if it can work with input generated by an older product or technology. If products designed for the new standard can receive, read, view or play older standards or formats, then the product is said to be backward-compatible; examples of such a standard include data formats and communication protocols. The reverse is forward compatibility, which implies that old devices allow data formats generated by new devices, perhaps without supporting all new features. A standard supports forward compatibility if older product versions can receive, read, view, or play the new standard. For example, the introduction of FM stereo transmission allowed backward compatibility since new FM radio receivers could receive monaural signals generated by old transmitters. It also allowed forward compatibility, since old monaural FM radio receivers could still receive a signal from a new transmitter. In programming languages, backward compatibility refers to the ability of a compiler for version N of the language to accept programs or data that worked under version N - 1. By this definition, if previous versions were also backward compatible, which is often the case, then, by induction, version N will also accept input that worked under any prior version after, and including, the latest one that was not backward compatible. However, in practice, features are often deprecated and support is dropped in a later release, which is yet thought of as backward compatible.
            Backward compatibility is important because it eliminates the need to start over when you upgrade to a newer product. A backward-compatible word processor, for instance, allows you to edit documents created with a previous version of the program. In general, manufacturers try to keep all their products backward compatible. Sometimes, however, it is necessary to sacrifice backward compatibility to take advantage of a new technology.
            The flip side of backward compatibility is upward compatibility. Upward compatible is the same as backward compatible, except that it is from the point of view of the older model.
    向前兼容(Forward compatibility)
            Forward compatibility is the capability of interoperating with anticipated future systems. Forward compatibility aims at the ability of a design to gracefully accept input intended for later versions of itself. The concept can be applied to entire systems, electrical interfaces, telecommunication signals, data communication protocols, file formats, and computer programming languages. A standard supports forward compatibility if older product versions can receive, read, view, play or execute the new standard. The applicability of a forward compatible system with new versions requires not only the respecting of the older version by the designers of the newer version but additionally some agreement on future design features with the design freeze of current versions. The introduction of a forward compatible technology implies that old devices partly can understand data generated by new devices. 
    forward compatibility and extensibility:
            Although the concepts of forward compatibility and extensibility are similar, they are not the same. A forward compatible design can accept data from a future version of itself and pick out the "known" part of the data. An example is a text-only word processor ignoring picture data from a future version. An extensible design is one that can be upgraded to fully handle the new data in the newer input format. An example is a text-only word processor that can be upgraded to handle picture data.
            Forward compatibility is a design principle in which a program or piece of hardware is developed to remain functional in the future with new software or devices. For example, a computer program is typically written in code that allows it to work with an Operating System (OS) and hardware that is current at the time of its release. A developer creating a program with forward compatibility in mind tries to ensure that it will also be able to function several years later with a new OS and different hardware. This can be quite difficult to ensure, however, though certain methods can be used to make the process simpler.
    总结:
            向后兼容中“后”指“落后”,而不是“后来”,表示过去的事情,站在新版本的立场讨论过去版本的兼容性问题。向前兼容中“前”指“前进”,而不是“以前”,表示未来的事情,站在旧版本的立场讨论未来版本的兼容性问题。
            微软网站对“向后兼容”和“向前兼容”的理解:
          (1)向后兼容。2007 Microsoft Office 系统向后兼容下列早期版本:Microsoft Office 2000、Microsoft Office XP 和 Microsoft Office 2003。这些版本的用户可以轻松地采用新的格式,并继续从现有文件中获得最大的益处。特别是他们还可以继续使用旧的 .doc、.xls 和 .ppt 二进制格式,这些格式与 2007 文件格式完全兼容。
          (2)向前兼容。应用程序的早期版本能够打开较新版本中的文件并忽略早期版本中未实现的功能。例如,Word 2003 向前兼容 Word 2007,因为它能够成功地使用转换器打开 Word 2007 文件。

    向上兼容(Upward Compatible)
    向上兼容(Upward Compatible),又称作向前兼容(Foreward Compatibility)。在计算机中指在较低档计算机上编写的程序,可以在同一系列的较高档计算机上运行,或者在某一平台的较低版本环境中编写的程序可以在较高版本的环境中运行,都称为向上兼容,前者是硬件兼容,而后者是软件兼容。例如,基于Intel386的PC兼容机上所有的软件也可以运行在486或更高的机型上。向上兼容具有非常重要的意义,一些大型软件的开发,工作量极大,如这些软件都能做到兼容,则无需在其它机器上重新开发,就可节省庞大的人力和物力。

    向下兼容(Downward Compatible)
    向下兼容(Downward Compatibility),又称作向后兼容(Backward Compatibility)。在计算机中指在一个程序或者类库更新到较新的版本后,旧的版本程序创建的文档或系统仍能被正常操作或使用,或在旧版本的类库的基础上开发的程序仍能正常编译运行的情况。例如较高档的计算机或较高版本的软件平台可以运行较为低档计算机或早期的软件平台所开发的程序,如基于Pentium微处理器的PC兼容机可以运行早期在486上运行的全部软件。向下兼容可以使用户在进行软件或硬件升级时,厂商不必为新设备或新平台从头开始编制应用程序,以前的程序在新的环境中任然有效。
    对于软件来说,向下兼容的意思是,较高版本的程序能顺利处理较低版本程序的数据。拿著名的动画制作软件 Flash的两个版本 Flash 5(老版本)与 Flash MX 2004(新版本)来说,这两个版本虽然保存出来的文件都是 .fla,可是文件内容的结构有所不同。尽管如此,Flash MX 2004 仍然能处理 Flash 5 保存的 fla 文件,我们就说 Flash MX 2004 是向下兼容的。而Flash 5不能处理Flash MX 2004保存的fla文件,我们就说Flash 5不支持向上兼容。

    西安电子科技大学的《计算机体系结构》的考题答案中给出兼容性的定义:
    (1)向上(下)兼容指的是按某档机器编制的软件,不加修改就能运行于比它高(低)档的机器上。
    (2)向前(后)兼容指的是按某个时期投入市场的该型号机器上编制的软件,不加修改就能运行于比它前(后)投入市场的机器上。

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  • 解析 向下兼容、向上兼容、向前兼容、向后兼容四个概念之间的...向前兼容中“前”指“前进”,表示未来的事情,站在旧版本的立场讨论未来版本的兼容性问题。 来源 向后兼容(Backward compatibility) Backwar...

    解析

    向下兼容、向上兼容、向前兼容、向后兼容四个概念之间的关联与联系:

    向上兼容等同于作向前兼容,向下兼容等同于向后兼容。主流使用的是向前兼容和向后兼容。向后兼容中“后”指“落后”,站在新版本的立场讨论过去版本的兼容性问题。向前兼容中“前”指“前进”,表示未来的事情,站在旧版本的立场讨论未来版本的兼容性问题。

    来源

    向后兼容(Backward compatibility)

    Backward compatibility is the capability of interoperating with older systems. In telecommunications and computing, a product or technology is backward or downward compatible if it can work with input generated by an older product or technology. If products designed for the new standard can receive, read, view or play older standards or formats, then the product is said to be backward-compatible; examples of such a standard include data formats and communication protocols. The reverse is forward compatibility, which implies that old devices allow data formats generated by new devices, perhaps without supporting all new features. A standard supports forward compatibility if older product versions can receive, read, view, or play the new standard. For example, the introduction of FM stereo transmission allowed backward compatibility since new FM radio receivers could receive monaural signals generated by old transmitters. It also allowed forward compatibility, since old monaural FM radio receivers could still receive a signal from a new transmitter. In programming languages, backward compatibility refers to the ability of a compiler for version N of the language to accept programs or data that worked under version N - 1. By this definition, if previous versions were also backward compatible, which is often the case, then, by induction, version N will also accept input that worked under any prior version after, and including, the latest one that was not backward compatible. However, in practice, features are often deprecated and support is dropped in a later release, which is yet thought of as backward compatible.
            Backward compatibility is important because it eliminates the need to start over when you upgrade to a newer product. A backward-compatible word processor, for instance, allows you to edit documents created with a previous version of the program. In general, manufacturers try to keep all their products backward compatible. Sometimes, however, it is necessary to sacrifice backward compatibility to take advantage of a new technology.
            The flip side of backward compatibility is upward compatibility. Upward compatible is the same as backward compatible, except that it is from the point of view of the older model.

    向前兼容(Forward compatibility)

            Forward compatibility is the capability of interoperating with anticipated future systems. Forward compatibility aims at the ability of a design to gracefully accept input intended for later versions of itself. The concept can be applied to entire systems, electrical interfaces, telecommunication signals, data communication protocols, file formats, and computer programming languages. A standard supports forward compatibility if older product versions can receive, read, view, play or execute the new standard. The applicability of a forward compatible system with new versions requires not only the respecting of the older version by the designers of the newer version but additionally some agreement on future design features with the design freeze of current versions. The introduction of a forward compatible technology implies that old devices partly can understand data generated by new devices.
    forward compatibility and extensibility:
            Although the concepts of forward compatibility and extensibility are similar, they are not the same. A forward compatible design can accept data from a future version of itself and pick out the "known" part of the data. An example is a text-only word processor ignoring picture data from a future version. An extensible design is one that can be upgraded to fully handle the new data in the newer input format. An example is a text-only word processor that can be upgraded to handle picture data.
            Forward compatibility is a design principle in which a program or piece of hardware is developed to remain functional in the future with new software or devices. For example, a computer program is typically written in code that allows it to work with an Operating System (OS) and hardware that is current at the time of its release. A developer creating a program with forward compatibility in mind tries to ensure that it will also be able to function several years later with a new OS and different hardware. This can be quite difficult to ensure, however, though certain methods can be used to make the process simpler.

    说明

    向后兼容中“后”指“落后”,而不是“后来”,表示过去的事情,站在新版本的立场讨论过去版本的兼容性问题。向前兼容中“前”指“前进”,而不是“以前”,表示未来的事情,站在旧版本的立场讨论未来版本的兼容性问题。
            微软网站对“向后兼容”和“向前兼容”的理解:
          (1)向后兼容。2007 Microsoft Office 系统向后兼容下列早期版本:Microsoft Office 2000、Microsoft Office XP 和 Microsoft Office 2003。这些版本的用户可以轻松地采用新的格式,并继续从现有文件中获得最大的益处。特别是他们还可以继续使用旧的 .doc、.xls 和 .ppt 二进制格式,这些格式与 2007 文件格式完全兼容。
          (2)向前兼容。应用程序的早期版本能够打开较新版本中的文件并忽略早期版本中未实现的功能。例如,Word 2003 向前兼容 Word 2007,因为它能够成功地使用转换器打开 Word 2007 文件。

    向上兼容(Upward Compatible)

    向上兼容(Upward Compatible),又称作向前兼容(Foreward Compatibility)。在计算机中指在较低档计算机上编写的程序,可以在同一系列的较高档计算机上运行,或者在某一平台的较低版本环境中编写的程序可以在较高版本的环境中运行,都称为向上兼容,前者是硬件兼容,而后者是软件兼容。例如,基于Intel386的PC兼容机上所有的软件也可以运行在486或更高的机型上。向上兼容具有非常重要的意义,一些大型软件的开发,工作量极大,如这些软件都能做到兼容,则无需在其它机器上重新开发,就可节省庞大的人力和物力。

    向下兼容(Downward Compatible)

    向下兼容(Downward Compatibility),又称作向后兼容(Backward Compatibility)。在计算机中指在一个程序或者类库更新到较新的版本后,旧的版本程序创建的文档或系统仍能被正常操作或使用,或在旧版本的类库的基础上开发的程序仍能正常编译运行的情况。例如较高档的计算机或较高版本的软件平台可以运行较为低档计算机或早期的软件平台所开发的程序,如基于Pentium微处理器的PC兼容机可以运行早期在486上运行的全部软件。向下兼容可以使用户在进行软件或硬件升级时,厂商不必为新设备或新平台从头开始编制应用程序,以前的程序在新的环境中任然有效。

    对于软件来说,向下兼容的意思是,较高版本的程序能顺利处理较低版本程序的数据。拿著名的动画制作软件 Flash的两个版本 Flash 5(老版本)与 Flash MX 2004(新版本)来说,这两个版本虽然保存出来的文件都是 .fla,可是文件内容的结构有所不同。尽管如此,Flash MX 2004 仍然能处理 Flash 5 保存的 fla 文件,我们就说 Flash MX 2004 是向下兼容的。而Flash 5不能处理Flash MX 2004保存的fla文件,我们就说Flash 5不支持向上兼容
     

     

     

     

     

     

     

     


     

    展开全文
  • 在查看css3源代码时,经常会遇到属性名...-moz代表的开发商Mozilla旗下的是基于 Gecko 开发的Firefox(火狐)。-webkit-是webkit内核的,代表浏览器有Chrome(谷歌 Safari, Google Chrome,傲游3,猎豹浏览器,百度浏

    在查看css3源代码时,经常会遇到属性名前面带有-moz,-webkit,-ms,-o的前缀,这些叫做浏览器私有前缀。主要是浏览器对于新CSS属性的一个提前支持。-moz是Gecko内核的,代表浏览器Firefox(火狐)-webkit-是webkit内核的,代表浏览器有Chrome(谷歌)、Safari(苹果计算机的浏览器)、Maxthon(傲游3采用)、猎豹浏览器,百度浏览器 、opera浏览器。-ms-是 以Trident 作为内核引擎,代表浏览器是IE,-o是以Presto为内核,代表浏览器Opera。

    下面以border-radius(css3圆角)举例说明具体应用:

    -webkit- border-radius: 25px;//Chrome4.0和Safari3.1也可兼容显示;
    -moz- border-radius: 25px;//火狐3.0兼容显示
    border-radius: 25px;//IE9.0,CHrome5.0可使用本方法
    //上述只是实现功能相同,但不同浏览器所识别代码不同
    
    具体怎么加前缀可查看不同属性的版本支持。

    展开全文
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  • 所以,为了兼容FF和其它浏览器,一般会在函数里重新给e赋值:e = window.event || e; 也就是说,如果window.event存在,则该浏览器支持直接使用window.event,否在就是不支持,不支持就使用传进来的e。
  • IE6,IE7,IE8,Firefox兼容的css hack 补充: color{ background-color: #CC00FF; /*所有浏览器都会显示为紫色*/ background-color: #FF0000\9; /*IE6、IE7、IE8会显示红色*/ *background-color: #0066FF; /*IE...
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    千次阅读 2016-09-11 13:55:18
    昨天遇到一个问题,要实现一个背景透明的效果,用CSS3用rgba()就能实现,即...rgba的含义,r代表red,g代表green,b代表blue,a代表透明度。红绿蓝是三原色,所有颜色都可以由这三种颜色拼合而成。比如rgba(0,0,0
  • css中兼容ie浏览器的前缀是什么

    千次阅读 2019-03-25 18:19:21
    答案是:-ms 详解: -ms代表【ie】内核识别码 -moz代表火狐【firefox】内核识别码 -webkit代表谷歌【chrome】/苹果【safari】内核识别码 -o代表欧朋【opera】内核识别码 ...
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