[{"data":1,"prerenderedAt":615},["ShallowReactive",2],{"guide-text-lowercase-guide":3,"faq-text-lowercase-guide":4,"related-text-lowercase-guide":158},null,{"id":5,"title":6,"body":7,"category":136,"description":137,"extension":138,"keywords":139,"meta":145,"navigation":146,"path":147,"relatedTools":148,"seo":153,"stem":154,"type":155,"updatedAt":156,"__hash__":157},"faq\u002Fhelp\u002Ffaq\u002Ftext-lowercase-guide.md","文本转小写常见问题：英文内容统一小写处理",{"type":8,"value":9,"toc":123},"minimark",[10,20,24,29,47,54,58,73,77,85,89,92,96,99,102],[11,12,13,14,19],"p",{},"把整段英文统一成小写，是格式化处理、数据整理的常用操作，91AI工具的",[15,16,18],"a",{"href":17},"\u002Ftools\u002Ftext-lowercase","文本转小写工具","可以一键完成。",[21,22,23],"h2",{"id":23},"详细解答",[25,26,28],"h3",{"id":27},"q-如何把文本转为小写","Q: 如何把文本转为小写？",[30,31,32,38,41,44],"ol",{},[33,34,35,36],"li",{},"打开",[15,37,18],{"href":17},[33,39,40],{},"把英文文本粘贴到输入框",[33,42,43],{},"工具自动把所有大写字母转为小写",[33,45,46],{},"复制转换结果使用",[11,48,49],{},[50,51],"img",{"alt":52,"src":53},"文本转小写工具界面","\u002Fimages\u002Ftools\u002Ftext-lowercase.png",[25,55,57],{"id":56},"q-文本转小写有什么用途","Q: 文本转小写有什么用途？",[59,60,61,64,67,70],"ul",{},[33,62,63],{},"统一英文数据处理格式，避免大小写差异影响比对",[33,65,66],{},"把全大写的标题、缩写转为易读的小写形式",[33,68,69],{},"预处理文本用于搜索匹配、关键词统计等场景",[33,71,72],{},"整理英文笔记、列表，保持格式统一",[25,74,76],{"id":75},"q-转小写和转大写有什么区别","Q: 转小写和转大写有什么区别？",[11,78,79,80,84],{},"转小写把所有字母统一为小写，转大写把所有字母统一为大写，方向相反。可配合",[15,81,83],{"href":82},"\u002Ftools\u002Ftext-uppercase","文本转大写工具","按需转换。",[25,86,88],{"id":87},"q-转换会影响专有名词吗","Q: 转换会影响专有名词吗？",[11,90,91],{},"会。工具统一转换所有大写字母，专有名词、人名、地名也会转为小写，需要注意转换后内容是否仍符合预期，特殊场景可手动调整。",[25,93,95],{"id":94},"q-中文和英文混合文本会怎样","Q: 中文和英文混合文本会怎样？",[11,97,98],{},"工具只影响英文字母的大小写，中文字符不受影响，混合文本中的中文内容保持不变。",[21,100,101],{"id":101},"相关推荐",[59,103,104,109,116],{},[33,105,106,108],{},[15,107,83],{"href":82}," - 统一转为大写",[33,110,111,115],{},[15,112,114],{"href":113},"\u002Ftools\u002Ftext-titlecase","英文首字母大写工具"," - 单词首字母大写",[33,117,118,122],{},[15,119,121],{"href":120},"\u002Ftools\u002Ftext-invert-case","大小写互换工具"," - 大小写反转",{"title":124,"searchDepth":125,"depth":125,"links":126},"",2,[127,135],{"id":23,"depth":125,"text":23,"children":128},[129,131,132,133,134],{"id":27,"depth":130,"text":28},3,{"id":56,"depth":130,"text":57},{"id":75,"depth":130,"text":76},{"id":87,"depth":130,"text":88},{"id":94,"depth":130,"text":95},{"id":101,"depth":125,"text":101},"tools","文本转小写常见问题解答，介绍如何用在线工具把英文文本快速统一转换为小写字母。解答文本转小写用途、与转大写的区别、统一小写处理英文数据、转换后内容准确性、大小写转换对专有名词的影响等常见问题，纯前端处理不上传服务器隐私安全，帮助用户把英文文章、列表、代码注释中的大写字母一键转为小写，便于统一格式和处理数据。","md",[140,141,142,143,144],"文本转小写","小写转换","英文小写","大小写转换","lowercase",{},true,"\u002Fhelp\u002Ffaq\u002Ftext-lowercase-guide",[149,150,151,152],"text-lowercase","text-uppercase","text-titlecase","text-invert-case",{"title":6,"description":137},"help\u002Ffaq\u002Ftext-lowercase-guide","faq","2026-08-04","X5cSx05K_ZV5Bzr7_4BSOkJTrgbaYR6BxJKsv84tjhI",[159,403,480],{"id":160,"title":161,"body":162,"category":136,"description":385,"extension":138,"keywords":386,"meta":392,"navigation":146,"path":394,"relatedTools":395,"seo":399,"stem":400,"type":155,"updatedAt":401,"__hash__":402},"faq\u002Fhelp\u002Ffaq\u002Fbarcode-generator-guide.md","条形码生成常见问题：格式选择、打印方法、扫码设备兼容性解答",{"type":8,"value":163,"toc":363},[164,167,171,174,181,187,193,199,205,211,217,221,256,259,263,266,302,305,309,312,315,319,322,326,329,332,336,339,343,346,349,353,356,360],[21,165,166],{"id":166},"条形码格式选择问题",[25,168,170],{"id":169},"支持哪些条形码格式各自有什么特点","支持哪些条形码格式？各自有什么特点？",[11,172,173],{},"支持 7 种条形码格式：",[11,175,176,180],{},[177,178,179],"strong",{},"Code 128","：最通用的格式，支持所有 ASCII 字符（字母大小写、数字、符号），编码密度高，相同内容长度最短。推荐用于物流单号、资产编码等内部管理场景。",[11,182,183,186],{},[177,184,185],{},"Code 39","：最经典的条形码格式，支持大写字母和数字。广泛用于工业和库存管理，可靠性高。",[11,188,189,192],{},[177,190,191],{},"EAN-13","：13位国际商品条形码，零售业标准。前 2-3 位为国别码，后续为厂商代码和商品代码，最后一位为校验码。",[11,194,195,198],{},[177,196,197],{},"UPC-A","：12位美式商品条形码，北美零售标准。与 EAN-13 兼容，常用于美国和加拿大。",[11,200,201,204],{},[177,202,203],{},"EAN-8","：8位缩短版商品条形码，专为小包装商品设计。",[11,206,207,210],{},[177,208,209],{},"Codabar","：首尾各有一位起始\u002F终止符（A\u002FB\u002FC\u002FD），中间为数据。图书馆和血液库行业标准。",[11,212,213,216],{},[177,214,215],{},"Code 93","：Code 39 的高密度改进版，支持相同字符集但密度更高，适合空间有限的标签。",[25,218,220],{"id":219},"怎样选择最适合的条形码格式","怎样选择最适合的条形码格式？",[59,222,223,232,238,244,250],{},[33,224,225,226,228,229,231],{},"电商商品 → ",[177,227,191],{}," 或 ",[177,230,197],{},"（被全球零售系统广泛识别）",[33,233,234,235,237],{},"物流单号和内部编码 → ",[177,236,179],{},"（密度高，支持任意 ASCII 字符）",[33,239,240,241,243],{},"库存管理和会员编码 → ",[177,242,185],{},"（简单稳定，无需校验码）",[33,245,246,247,249],{},"图书馆管理 → ",[177,248,209],{},"（行业标准格式）",[33,251,252,253,255],{},"空间有限的小标签 → ",[177,254,215],{},"（高密度，占用空间小）",[21,257,258],{"id":258},"内容长度与校验",[25,260,262],{"id":261},"条形码的内容长度有限制吗","条形码的内容长度有限制吗？",[11,264,265],{},"不同格式限制不同：",[59,267,268,273,278,283,288,293,298],{},[33,269,270,272],{},[177,271,179],{},"：建议 20 字符以内",[33,274,275,277],{},[177,276,185],{},"：无严格限制，建议 20 字符以内",[33,279,280,282],{},[177,281,191],{},"：固定 13 位数字",[33,284,285,287],{},[177,286,197],{},"：固定 12 位数字",[33,289,290,292],{},[177,291,203],{},"：固定 8 位数字",[33,294,295,297],{},[177,296,209],{},"：建议 20 字符内",[33,299,300,297],{},[177,301,215],{},[11,303,304],{},"输入 11 位或 12 位数字将自动计算并附加 UPC-A 校验码；输入 12 位自动计算 EAN-13 校验码；输入 7 位自动计算 EAN-8 校验码。",[25,306,308],{"id":307},"输入内容出错怎么办","输入内容出错怎么办？",[11,310,311],{},"在输入时系统会自动校验内容是否符合所选条形码格式的字符集要求，如果不符合会显示红色错误提示。只需根据提示修改内容或更改条形码格式即可。",[21,313,314],{"id":314},"打印与输出",[25,316,318],{"id":317},"生成的条形码可以打印吗怎么打印","生成的条形码可以打印吗？怎么打印？",[11,320,321],{},"生成的 PNG 和 SVG 图片均可直接打印。SVG 为矢量格式，无限放大不失真，推荐用于印刷。PNG 适合网页显示和快速打印。建议使用标签打印机（如斑马 ZEBRA、TSC）或普通激光打印机配合不干胶标签纸打印。打印时建议保持 300 DPI 以上分辨率。",[25,323,325],{"id":324},"png-和-svg-有什么区别哪种更好","PNG 和 SVG 有什么区别？哪种更好？",[11,327,328],{},"PNG 是位图格式，适合屏幕显示和简单打印；SVG 是矢量格式，可无限缩放不失真，适合专业印刷。推荐正式标签使用 SVG 格式以获得最佳打印质量。",[21,330,331],{"id":331},"扫码兼容性",[25,333,335],{"id":334},"生成的条形码能被扫码枪识别吗","生成的条形码能被扫码枪识别吗？",[11,337,338],{},"能。条形码遵循国际标准编码规范，可被市面上所有常见条形码扫码枪（斑马、霍尼韦尔、新大陆等）、手机扫码应用（微信、支付宝）和 PDA 扫码设备识别。确保打印清晰、对比度足够、尺寸合适即可。",[25,340,342],{"id":341},"手机扫码应用能扫描吗","手机扫码应用能扫描吗？",[11,344,345],{},"支持。微信、支付宝、手机浏览器等主流扫码应用均可识别。条形码生成时已包含必需的起始符、终止符和校验码，确保扫码兼容性。",[21,347,348],{"id":348},"其他问题",[25,350,352],{"id":351},"条形码生成器是免费的吗","条形码生成器是免费的吗？",[11,354,355],{},"完全免费，无任何使用限制，不限制生成次数，不限制下载次数，无水印。纯前端本地处理，数据不上传服务器，确保隐私安全。",[25,357,359],{"id":358},"生成的条形码可以商用吗","生成的条形码可以商用吗？",[11,361,362],{},"可以。生成的条形码图片完全归用户所有，可用用于商业和非商业场景，无水印、无版权限制。",{"title":124,"searchDepth":125,"depth":125,"links":364},[365,369,373,377,381],{"id":166,"depth":125,"text":166,"children":366},[367,368],{"id":169,"depth":130,"text":170},{"id":219,"depth":130,"text":220},{"id":258,"depth":125,"text":258,"children":370},[371,372],{"id":261,"depth":130,"text":262},{"id":307,"depth":130,"text":308},{"id":314,"depth":125,"text":314,"children":374},[375,376],{"id":317,"depth":130,"text":318},{"id":324,"depth":130,"text":325},{"id":331,"depth":125,"text":331,"children":378},[379,380],{"id":334,"depth":130,"text":335},{"id":341,"depth":130,"text":342},{"id":348,"depth":125,"text":348,"children":382},[383,384],{"id":351,"depth":130,"text":352},{"id":358,"depth":130,"text":359},"关于条形码生成的常见问题解答，涵盖条形码格式选择建议、内容长度限制、打印输出方法、扫码设备兼容性等实用信息。",[387,388,389,390,391],"条形码常见问题","条码格式选择","条形码打印","如何选择条形码格式","条码扫描兼容性",{"readingTime":393},5,"\u002Fhelp\u002Ffaq\u002Fbarcode-generator-guide",[396,397,398],"barcode-generator","qr-code-generator","image-to-icon",{"title":161,"description":385},"help\u002Ffaq\u002Fbarcode-generator-guide","2026-07-22","RrwsevMPtVmqXUSS9vvys8DKA5ATJkvSZWuNvu8Rbm4",{"id":404,"title":405,"body":406,"category":136,"description":463,"extension":138,"keywords":464,"meta":470,"navigation":146,"path":471,"relatedTools":472,"seo":476,"stem":477,"type":155,"updatedAt":478,"__hash__":479},"faq\u002Fhelp\u002Ffaq\u002Fbase-converter-guide.md","进制转换常见问题：二进制\u002F八进制\u002F十进制\u002F十六进制互转方法",{"type":8,"value":407,"toc":455},[408,412,415,419,427,431,434,438,441,445,448,452],[21,409,411],{"id":410},"支持哪些进制之间的转换","支持哪些进制之间的转换？",[11,413,414],{},"支持二进制(2)、八进制(8)、十进制(10)、十六进制(16)四种常用进制之间的双向互转。",[21,416,418],{"id":417},"二进制转十进制怎么算","二进制转十进制怎么算？",[11,420,421,422,426],{},"从右到左，每位数字乘以2的位次幂后相加。例如二进制 ",[423,424,425],"code",{},"1011"," = 1×2³ + 0×2² + 1×2¹ + 1×2⁰ = 8+0+2+1 = 11。工具自动完成计算。",[21,428,430],{"id":429},"十六进制中的a-f代表什么","十六进制中的A-F代表什么？",[11,432,433],{},"A=10, B=11, C=12, D=13, E=14, F=15。十六进制满16进位，用A-F表示10-15的数值。",[21,435,437],{"id":436},"负数和小数支持吗","负数和小数支持吗？",[11,439,440],{},"当前版本支持正整数转换。负数和浮点数转换需要未来版本支持。",[21,442,444],{"id":443},"输入框支持粘贴吗","输入框支持粘贴吗？",[11,446,447],{},"支持。可以从其他位置复制数字直接粘贴到输入框中，工具会自动识别并转换。",[21,449,451],{"id":450},"为什么十六进制颜色码用6位","为什么十六进制颜色码用6位？",[11,453,454],{},"十二进制颜色码中，每位十六进制数字的取值范围是0-F，两位一组表示一个颜色通道（红\u002F绿\u002F蓝），因此六位可表示256×256×256=1600多万种颜色。",{"title":124,"searchDepth":125,"depth":125,"links":456},[457,458,459,460,461,462],{"id":410,"depth":125,"text":411},{"id":417,"depth":125,"text":418},{"id":429,"depth":125,"text":430},{"id":436,"depth":125,"text":437},{"id":443,"depth":125,"text":444},{"id":450,"depth":125,"text":451},"关于在线进制转换工具（二进制、八进制、十进制、十六进制互转）的常见问题解答。",[465,466,467,468,469],"进制转换FAQ","二进制转十进制","十六进制转二进制","在线进制计算","程序员进制换算",{},"\u002Fhelp\u002Ffaq\u002Fbase-converter-guide",[473,474,475],"base-converter","unit-converter","hash-encode-encrypt",{"title":405,"description":463},"help\u002Ffaq\u002Fbase-converter-guide","2026-06-18","839dgL4KwJ88SEIVUjJYQzFQ8zXCTXihkmgflbi4UOk",{"id":481,"title":482,"body":483,"category":136,"description":597,"extension":138,"keywords":598,"meta":604,"navigation":146,"path":605,"relatedTools":606,"seo":611,"stem":612,"type":155,"updatedAt":613,"__hash__":614},"faq\u002Fhelp\u002Ffaq\u002Fextract-emails-guide.md","提取邮箱常见问题：从文档网页快速整理邮箱地址",{"type":8,"value":484,"toc":588},[485,493,495,499,514,520,524,535,539,547,551,565,567],[11,486,487,488,492],{},"从网页、文档、聊天记录里整理联系人邮箱，逐个复制粘贴又慢又容易漏。91AI工具的",[15,489,491],{"href":490},"\u002Ftools\u002Fextract-emails","提取邮箱工具","可以自动识别文本中所有邮箱地址，一键整理成干净的列表。",[21,494,23],{"id":23},[25,496,498],{"id":497},"q-如何从一大段文本中提取邮箱","Q: 如何从一大段文本中提取邮箱？",[30,500,501,505,508,511],{},[33,502,35,503],{},[15,504,491],{"href":490},[33,506,507],{},"把包含邮箱的文本整段粘贴到输入框",[33,509,510],{},"工具自动识别所有邮箱地址，每行一个输出",[33,512,513],{},"复制结果用于群发或导入通讯录",[11,515,516],{},[50,517],{"alt":518,"src":519},"提取邮箱工具界面","\u002Fimages\u002Ftools\u002Fextract-emails.png",[25,521,523],{"id":522},"q-工具能识别哪些形式的邮箱","Q: 工具能识别哪些形式的邮箱？",[11,525,526,527,530,531,534],{},"能识别标准邮箱格式，如 ",[423,528,529],{},"name@example.com","、",[423,532,533],{},"first.last@company.com.cn"," 等常见的用户名@域名形式，支持带点、连字符和多级域名的地址。",[25,536,538],{"id":537},"q-提取出来的邮箱有重复怎么办","Q: 提取出来的邮箱有重复怎么办？",[11,540,541,542,546],{},"把提取结果粘贴到",[15,543,545],{"href":544},"\u002Ftools\u002Fdelete-duplicate-lines","删除重复行工具","里一键去重，就能得到唯一的邮箱列表，避免重复发送。",[25,548,550],{"id":549},"q-提取邮箱适合哪些场景","Q: 提取邮箱适合哪些场景？",[59,552,553,556,559,562],{},[33,554,555],{},"从论坛帖子、网页评论里收集作者联系方式",[33,557,558],{},"从简历文件夹、招聘文档中整理候选人邮箱",[33,560,561],{},"从老通讯录、历史聊天记录中恢复联系人",[33,563,564],{},"从邮件导出文件中批量整理收件人列表",[21,566,101],{"id":101},[59,568,569,574,581],{},[33,570,571,573],{},[15,572,545],{"href":544}," - 提取结果一键去重",[33,575,576,580],{},[15,577,579],{"href":578},"\u002Ftools\u002Fextract-urls","提取链接工具"," - 同时提取文本中的网址",[33,582,583,587],{},[15,584,586],{"href":585},"\u002Ftools\u002Ftext-replace","文本替换工具"," - 批量整理邮箱前缀",{"title":124,"searchDepth":125,"depth":125,"links":589},[590,596],{"id":23,"depth":125,"text":23,"children":591},[592,593,594,595],{"id":497,"depth":130,"text":498},{"id":522,"depth":130,"text":523},{"id":537,"depth":130,"text":538},{"id":549,"depth":130,"text":550},{"id":101,"depth":125,"text":101},"提取邮箱常见问题解答，介绍如何用在线提取邮箱工具从网页复制文本、简历文档、聊天记录中自动提取所有邮箱地址，每行一个清晰排列方便复制群发。涵盖整段粘贴提取、提取结果校验去重、与通讯录导入结合等常见场景和注意事项，纯前端处理不上传文本隐私安全，帮助用户从杂乱内容中快速整理出干净的邮箱列表，避免逐个查找遗漏出错。",[599,600,601,602,603],"提取邮箱","邮箱批量提取","邮箱整理","批量复制邮箱","邮箱地址提取",{},"\u002Fhelp\u002Ffaq\u002Fextract-emails-guide",[607,608,609,610],"extract-emails","extract-urls","extract-numbers","text-replace",{"title":482,"description":597},"help\u002Ffaq\u002Fextract-emails-guide","2026-08-03","TpGdCnE2GesqAiqhi1XVuK5XRFSrtYGx_HCUtiRmtBg",1785817133296]