flutter widget vs 课程手账

flutter widget explains 117 Flutter widgets in plain language, with code you can copy and run right inside the app. Look up a widget, try its code, and keep up with Flutter news and packages, all in one place. A typical visit goes like this: search for a widget, read the explanation, copy the code, tap "Try it" to watch it run, then check the common errors and gotchas before you use the widget in your own project. When you come back, the home screen takes you straight to where you left off. What you can do • Find what you need fast: search by name, pick up where you left off, or browse category cards on the home screen • Understand every widget: a plain explanation and code you can copy, with the errors you are most likely to see and the gotchas that trip people up shown separately • Run the code: tap "Try it" under a code sample to run that exact code in the app and see the result • Experiment in DartPad: open DartPad from inside the app and write your own code • Follow the news: posts from the official Flutter blog, filterable by topic, each with an image, a summary and a reading time • Discover packages: popular pub.dev packages sorted by likes, downloads or points, with rankings and supported platforms at a glance • Up to date for Flutter 3.47: every explanation was rewritten for the current release • 33 languages: the app can be used in 33 languages Great for • Beginners who want to learn Flutter one widget at a time • Developers who need a quick refresher on how a widget is used • Anyone who wants Flutter news and packages in one place About purchases The app is free to download and shows ads. A one-time in-app purchase removes the ads. There is no subscription.

课程手账是一款面向中小学班主任和任课教师的本地班级管理 App，集中管理学生档案、考试成绩、课堂记录、课时日历和待办。 无论是在课间快速记录课堂表现，还是整理一场考试成绩，都可以在手机上完成，并随时查看班级变化。减少重复表格操作，把每天的教学工作整理得更清楚。 【班级与学生管理】 ・管理多个班级和学生档案，按姓名或学号快速查找 ・查看学生成绩历史和课堂记录时间线 ・记录表扬、进步、课堂表现、作业、迟到、缺勤、未交作业、违纪等情况 ・【高级付费功能】为一名或多名学生批量新增课堂记录 【课时与待办】 ・用课时日历安排授课内容，标记已完成或已取消 ・发现不同班级在同一时间的课时冲突，并可复制课时到其他日期 ・管理历史、今日和未来待办，按优先级安排工作 【成绩导入与分析】 ・支持 Excel、WPS 或 Numbers 导出的 XLSX，以及 UTF-8 CSV ・自动识别常见表头，支持工作表选择、字段映射、导入预览和错误检查 ・导入前查看新增、更新、跳过和错误，确认后整批写入 ・查看平均分、得分率、分数段、竞赛排名、排名变化和成绩趋势 ・快速找到需要关注、持续进步、拔尖、退步或波动的学生，并查看触发原因 ・缺考、免考和未录入不会被简单当作 0 分 【数据安全与备份】 ・不需要注册账号，核心资料默认保存在本机 ・支持导出学生、考试、成绩、课堂记录和待办 ・【高级付费功能】支持 CSV、XLSX 和完整本地备份，方便保存与迁移 ・使用 Face ID 或数字密码保护资料 ・导入失败自动回滚，避免留下不完整数据 课程手账适合小学、初中、高中班主任，以及需要管理多个班级的任课教师。 注：批量新增课堂记录、XLSX 完整本地备份为高级付费功能，需要解锁内购后使用。