[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"info-list-19147":3,"hot-list-29":24},{"info":4,"next":18,"pre":21},{"article_title":5,"type_id":6,"article_image":7,"article_content":8,"read_num":9,"create_time":10,"update_time":10,"article_author":11,"tags":12,"seo_title":5,"keyword":13,"desc":14,"style_type":15,"article_type":12,"is_video":16,"video_url":12,"video_img":12,"update_time_str":17},"二维码的编码方式有哪些种类？原来扫码背后藏着这些技术",29,"https:\u002F\u002Fhs1.bmwas.cn\u002Farticle\u002F8f2baaad7790ac8ba40fb9c6939215f9.jpg","\u003Cdiv class=\"ace-line ace-line old-record-id-doxcnjqf1tyRSeEu9SXN5N0PZhd\">　　扫码支付、扫码点餐背后，用的二维码技术可能完全不同。QR Code、汉信码、PDF417、DataMatrix这四种编码方式，在数据容量、识别速度、应用场景上各有侧重。很多人以为二维码就是那个黑白方块图案，扫一扫就能用，但超市里的支付码、身份证上的信息码、电子元件上的追溯码，用的可能是完全不同的编码技术。\u003C\u002Fdiv>\u003Cdiv class=\"ace-line ace-line old-record-id-doxcnjGXUn0J9QnQgxsRksAcoih\">　　这些技术差异直接影响使用效果。有的码制扫描速度快但容量小，有的能存海量信息但生成成本高，还有专门为中文优化的国产标准。如果你正在做产品溯源、会员系统或证件管理，选错编码方式可能导致识别失败或数据冗余。\u003C\u002Fdiv>\u003Ch2 class=\"heading-2 ace-line old-record-id-doxcnJRKssJ2X6W12cmDZZs37dm\">一、四种主流编码方式的核心区别\u003C\u002Fh2>\u003Cdiv class=\"ace-line ace-line old-record-id-doxcn6CxJsihC7IjRqFTlcgrB1c\">　　QR Code是目前覆盖面最广的二维码标准。1994年日本电装公司开发它时，主要解决汽车零件追踪问题，后来因为开放专利变成了事实标准。核心优势是兼容性强，无论安卓还是iOS，几乎所有扫码工具都默认支持。而且能360度任意角度识别，斜着扫、倒着扫都能读出来。数据容量方面，最多能装7089个数字或4296个字母，对于网址、文本信息完全够用。\u003C\u002Fdiv>\u003Cul start=\"1\" class=\"list-bullet1\">\u003Cli class=\"ace-line ace-line old-record-id-doxcnQ48gZzKjLTorhHHATmugMd\" data-list=\"bullet\" style=\"list-style-type: disc; list-style-position: outside; margin-left: 0px; padding-left: 0px;\">汉信码是2007年由中国物品编码中心主导开发的码制，最大特点是中文编码效率比QR Code提升15%，内置国密算法支持，在数据安全性上符合国内监管要求\u003C\u002Fli>\u003Cli class=\"ace-line ace-line old-record-id-doxcnEP007QwxdcmXRNXnk6wDkg\" data-list=\"bullet\" style=\"list-style-type: disc; list-style-position: outside; margin-left: 0px; padding-left: 0px;\">PDF417看起来像加宽版的条形码，实际上是把多行条码堆叠起来，数据容量很大，能存储1800个字符或1100个二进制字节，典型应用是身份证背面的编码\u003C\u002Fli>\u003Cli class=\"ace-line ace-line old-record-id-doxcnFSd6wxUGuZ30OpJ3Np0Yhd\" data-list=\"bullet\" style=\"list-style-type: disc; list-style-position: outside; margin-left: 0px; padding-left: 0px;\">DataMatrix是专为微型产品设计的编码方式，最小能生成2×2毫米的二维码，抗污损能力特别强，采用ECC200纠错算法，即使损坏了一半面积仍然能读取\u003C\u002Fli>\u003C\u002Ful>\u003Ch2 class=\"heading-2 ace-line old-record-id-doxcnmOGbHz58dVsePmUY2DYyjf\">二、根据用户设备选择编码方式\u003C\u002Fh2>\u003Cdiv class=\"ace-line ace-line old-record-id-doxcn62cRoEzzo5UAIkEsb7P9Fh\">　　目标用户是普通消费者的话，他们只有手机摄像头，那就选QR Code。这是唯一一种微信、支付宝、浏览器都能直接识别的码制。如果你做的是面向C端用户的应用——活动报名、产品说明书、门店导航，QR Code是最稳妥的选择。八木屋二维码生成器默认采用这个标准，生成后可以直接用微信、支付宝扫描，不需要用户安装专门的识别软件。\u003C\u002Fdiv>\u003Cdiv class=\"ace-line ace-line old-record-id-doxcnp1Wrt4kTIDIKZqRofcfode\">　　企业内部使用，比如仓库管理、生产追溯，可以考虑PDF417或DataMatrix。因为你可以配备专业扫码枪，识别速度和准确率都会更高。政务、金融等对安全性有要求的场景，汉信码会是更合适的选择。虽然需要专用识别工具，但数据加密和合规性更有保障。\u003C\u002Fdiv>\u003Ch2 class=\"heading-2 ace-line old-record-id-doxcn3uzwGvspA1kCHhNi1qQWGb\">三、根据信息量和使用环境决定\u003C\u002Fh2>\u003Cdiv class=\"ace-line ace-line old-record-id-doxcnTKJQI0zbKXvRyu0oaFP6xf\">　　只是存个网址、电话号码的话，QR Code完全够用。它生成的图案小，打印成本低，用户扫起来也快。需要存储完整的表单数据、证件信息时，PDF417的大容量优势就体现出来了。一个码能装下几十个字段，省去了多次扫描或联网查询的麻烦。\u003C\u002Fdiv>\u003Cdiv class=\"ace-line ace-line old-record-id-doxcnB2upoNG8sojQ8g3S2gKVaf\">　　中文内容比较多的情况下，汉信码能节省空间。同样的文字，它生成的二维码会比QR Code小一圈，打印出来更清晰。户外广告、产品包装这些场景，二维码可能被磨损、遮挡，选QR Code的纠错能力比较保险。八木屋在线工具生成QR Code时，可以调整纠错等级，印刷品建议选择高纠错级别，即使部分损坏也能正常识别。\u003C\u002Fdiv>\u003Cspan 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微信自带的转换入口　　微信其实自带转换功能，藏在扫一扫的识别结果页。打开微信扫一扫，对准小程序码扫描，",{"article_title":46,"article_image":47,"id":48,"seo_title":46,"brief":49,"duration":12,"video_img":12,"type_id":6},"网址怎么生成二维码？原来浏览器自带这个功能","https:\u002F\u002Fhs1.bmwas.cn\u002Farticle\u002F62d2f7a0552101de8c8d5fc00af09c24.jpg",19158,"　　打开电脑上的网页，想快速传到手机上继续看，你会怎么做？复制网址发微信？还是用数据线传文件？有个更直接的办法——把网址生成二维码，手机扫一下就能打开。关键是，你现在用的浏览器可能就自带这个功能，根本不用额外下载工具或跳到其他网站。　　这个方法特别适合临时分享网页、做演示文稿时加个扫码链接，或者给客户发产品页面。操作简单，而且你的网址不会经过第三方服务器，隐私更有保障。1.1. 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