• 为有志向就读海外高校的学生提供注册北美高中学籍
  • 以北美当地学生身份申请大学的机会,成倍提升世界高校录取率
  • 所有任课教师均经过专业师资培训及考核,有多年丰富的教学经验

400-060-0103

初中留美必知:F-1学生签证申请全流程解析与关键细节

来源:上海海文北美课程中心 时间:03-20

初中留美必知:F-1学生签证申请全流程解析与关键细节

初中留美为何选择F-1签证?

美国针对国际学生设置了多种非移民签证类型,其中F-1签证是专门为在美接受全日制教育的学生设计的核心签证类别。对于初中阶段的留学生而言,无论是入读公立中学、私立学校还是语言培训项目(需符合全日制学习要求),F-1签证都是法定的准入凭证。区别于短期交流的J-1签证或旅游性质的B类签证,F-1签证明确赋予学生在美长期学习的合法身份,并配套了与学业相关的权益保障,这也是其成为初中留美首选签证类型的根本原因。

需要特别说明的是,F-1签证的签发基于学生已获得美国正规教育机构的录取,且该机构需在SEVP(学生与交流访问者项目)系统中注册。家长在选择学校时,务必确认其具备SEVP认证,否则无法为学生出具有效的I-20表格——这是F-1签证申请的核心材料之一。

F-1签证申请的五大关键步骤

从确定留美意向到最终持签入境,F-1签证申请需要分阶段完成多项准备工作。以下结合实际操作经验,梳理核心流程及注意事项:

步:获取有效的I-20表格

I-20表格由美国学校签发,是证明学生被正规录取且符合F-1签证申请资格的法律文件。表格中详细列明了学校信息、学生个人信息、学习项目时长、预计学费及生活费等关键数据。需要注意的是,I-20表格具有时效性(通常为6个月),建议在计划签证面试前3个月内获取最新版本,避免因文件过期导致申请受阻。

家长需协助学生与学校保持沟通,确认I-20表格中的信息(如姓名拼写、项目开始时间)与实际情况完全一致。任何信息误差都可能在签证面试环节引发质疑,甚至导致拒签。

第二步:在线填写DS-160申请表

DS-160是非移民签证申请人必须提交的电子表格,包含个人背景、旅行计划、家庭信息等200余项内容。填写时需确保所有信息真实准确,特别是“旅行目的”“预计停留时间”“联系地址”等字段,需与I-20表格及后续面试陈述保持一致。

系统允许分阶段填写并保存进度,但提交后无法修改。建议使用Chrome或Firefox浏览器操作,填写完成后务必下载确认页(带有条形码),面试时需携带该页作为凭证。

第三步:缴纳费用与预约面试

完成DS-160提交后,需通过指定平台缴纳160美元的签证申请费(费用可能调整,以最新公告为准)。缴费成功后,登录美国签证申请系统(CEAC)预约面试时间。建议优先选择工作日上午时段,部分领馆在非高峰日的审理效率更高。

预约时需注意,面试地点需选择与申请人常住地对应的领区(如北京、上海、广州等)。跨领区申请可能需要额外提供居住证明,增加材料准备复杂度。

第四步:准备面试材料与模拟演练

面试是F-1签证申请的核心环节,领事官员将通过提问评估学生的留学动机、资金能力及归国意向。建议准备以下材料原件及复印件:

  • I-20表格及学校录取信
  • DS-160确认页及缴费收据
  • 护照(有效期需覆盖在美学习时间+6个月)
  • 资金证明(涵盖年学费+生活费,建议为银行存款证明或父母收入证明)
  • 语言能力证明(如托福Junior成绩、学校内测报告等)
  • 学习计划(简要说明选择该校的原因、课程规划及未来目标)

面试常见问题包括:“为什么选择这所学校?”“谁支付你的留学费用?”“毕业后有什么计划?”等。建议家长陪同学生进行模拟问答,确保回答简洁清晰,避免冗长或偏离主题。

第五步:签证获批与入境准备

若面试通过,护照将通过EMS寄回(约5-10个工作日)。签证页会标注“F-1”类型及入境有效期(通常为签证签发日起12个月),但学生需注意:最早可入境时间为I-20表格中“项目开始日期前30天”,过早入境可能被海关拒绝。

入境时需携带I-20原件、护照、签证页及学校录取信,海关官员可能会抽查相关材料。建议将重要文件单独存放于随身行李,避免托运丢失。

F-1签证持有者的权益与限制

成功获得F-1签证后,学生在美学习期间需遵守相关法规,同时享有特定权益:

关于在校工作:学期内与假期的区别

根据美国移民局规定,F-1学生在学期内(非假期)可在校内从事兼职工作,每周时长不超过20小时,岗位需与学习无关(如图书馆助理、校园餐厅服务等)。假期期间(如暑假、寒假),工作时长可放宽至全职(40小时/周),但仍需通过学校国际学生办公室备案。

特别提醒:校外工作(如在周边超市、企业兼职)需提前申请CPT(课程实践训练),且需与所学专业直接相关。未经许可的校外工作属于违规行为,可能导致签证被撤销。

关于OPT:毕业后的实践机会

完成初中学业后(如计划继续在美读高中或大学),F-1学生可申请OPT(Optional Practical Training),即与专业相关的实习或工作许可。目前,普通专业OPT时长为12个月,STEM(科学、技术、工程、数学)专业可延长至24个月。

需要注意的是,OPT申请需在毕业前90天至毕业后60天内提交,且需通过学校国际学生办公室推荐。持有OPT期间,学生仍需保持F-1身份,若超过90天未找到工作,将面临身份失效风险。

提升签证成功率的实用建议

F-1签证申请涉及多环节材料准备与沟通,以下经验可帮助家庭降低拒签风险:

  1. 提前规划时间线:从选校、申请录取到签证面试,建议预留6-8个月准备周期,避免因材料延误影响入学。
  2. 保持材料一致性:所有提交的文件(如资金证明、学习计划)需逻辑自洽,避免出现“父母收入与存款金额不符”“学习计划与所选课程无关”等矛盾。
  3. 重视面试沟通:领事官员更关注学生的真实留学意图,回答问题时需体现对学校的了解(如特色课程、师资优势)及对未来的清晰规划,避免泛泛而谈。
  4. 寻求专业协助:若家庭对签证政策不熟悉,可咨询正规留学机构或移民律师。专业顾问能帮助梳理材料逻辑,预判可能的面试问题,提升申请效率。

对于初中阶段的留学生而言,赴美学习不仅是教育资源的提升,更是独立成长的重要契机。而F-1签证作为开启这段旅程的“钥匙”,其申请过程虽需细致准备,但只要家庭提前了解规则、充分备妥材料,完全可以顺利完成。愿每一位心怀留学梦想的初中生,都能持签踏上属于自己的成长之路。

课程导航
校区导航
基本 文件 流程 错误 SQL 调试
  1. 请求信息 : 2026-04-04 21:43:52 HTTP/1.1 GET : http://www.eduml.com/s/6822/n/37235.html
  2. 运行时间 : 0.023247s [ 吞吐率:43.02req/s ] 内存消耗:385.48kb 文件加载:137
  3. 缓存信息 : 0 reads,0 writes
  1. /data/web/baijiao_branch_collect/public/index.php ( 0.79 KB )
  2. /data/web/baijiao_branch_collect/vendor/autoload.php ( 0.75 KB )
  3. /data/web/baijiao_branch_collect/vendor/composer/autoload_real.php ( 1.63 KB )
  4. /data/web/baijiao_branch_collect/vendor/composer/platform_check.php ( 0.90 KB )
  5. /data/web/baijiao_branch_collect/vendor/composer/ClassLoader.php ( 15.99 KB )
  6. /data/web/baijiao_branch_collect/vendor/composer/autoload_static.php ( 4.26 KB )
  7. /data/web/baijiao_branch_collect/vendor/topthink/think-helper/src/helper.php ( 8.34 KB )
  8. /data/web/baijiao_branch_collect/vendor/topthink/think-validate/src/helper.php ( 2.19 KB )
  9. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/helper.php ( 1.47 KB )
  10. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/stubs/load_stubs.php ( 0.16 KB )
  11. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/Exception.php ( 1.69 KB )
  12. /data/web/baijiao_branch_collect/vendor/topthink/think-container/src/Facade.php ( 2.71 KB )
  13. /data/web/baijiao_branch_collect/vendor/symfony/deprecation-contracts/function.php ( 0.99 KB )
  14. /data/web/baijiao_branch_collect/vendor/symfony/polyfill-mbstring/bootstrap.php ( 8.26 KB )
  15. /data/web/baijiao_branch_collect/vendor/symfony/polyfill-mbstring/bootstrap80.php ( 9.78 KB )
  16. /data/web/baijiao_branch_collect/vendor/symfony/var-dumper/Resources/functions/dump.php ( 1.49 KB )
  17. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/App.php ( 15.30 KB )
  18. /data/web/baijiao_branch_collect/vendor/topthink/think-container/src/Container.php ( 15.76 KB )
  19. /data/web/baijiao_branch_collect/vendor/psr/container/src/ContainerInterface.php ( 1.02 KB )
  20. /data/web/baijiao_branch_collect/app/provider.php ( 0.19 KB )
  21. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/Http.php ( 6.04 KB )
  22. /data/web/baijiao_branch_collect/vendor/topthink/think-helper/src/helper/Str.php ( 7.29 KB )
  23. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/Env.php ( 4.68 KB )
  24. /data/web/baijiao_branch_collect/app/common.php ( 10.83 KB )
  25. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/helper.php ( 18.78 KB )
  26. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/Config.php ( 5.54 KB )
  27. /data/web/baijiao_branch_collect/config/app.php ( 1.29 KB )
  28. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/facade/Env.php ( 1.67 KB )
  29. /data/web/baijiao_branch_collect/config/cache.php ( 1.22 KB )
  30. /data/web/baijiao_branch_collect/config/config.php ( 0.26 KB )
  31. /data/web/baijiao_branch_collect/config/console.php ( 0.29 KB )
  32. /data/web/baijiao_branch_collect/config/cookie.php ( 0.56 KB )
  33. /data/web/baijiao_branch_collect/config/database.php ( 2.29 KB )
  34. /data/web/baijiao_branch_collect/config/filesystem.php ( 0.63 KB )
  35. /data/web/baijiao_branch_collect/config/lang.php ( 0.81 KB )
  36. /data/web/baijiao_branch_collect/config/log.php ( 1.37 KB )
  37. /data/web/baijiao_branch_collect/config/middleware.php ( 0.19 KB )
  38. /data/web/baijiao_branch_collect/config/route.php ( 1.54 KB )
  39. /data/web/baijiao_branch_collect/config/session.php ( 0.57 KB )
  40. /data/web/baijiao_branch_collect/config/trace.php ( 0.34 KB )
  41. /data/web/baijiao_branch_collect/config/view.php ( 0.81 KB )
  42. /data/web/baijiao_branch_collect/app/event.php ( 0.25 KB )
  43. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/Event.php ( 7.67 KB )
  44. /data/web/baijiao_branch_collect/app/service.php ( 0.13 KB )
  45. /data/web/baijiao_branch_collect/app/AppService.php ( 0.26 KB )
  46. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/Service.php ( 1.64 KB )
  47. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/Lang.php ( 7.35 KB )
  48. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/lang/zh-cn.php ( 13.70 KB )
  49. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/initializer/Error.php ( 3.31 KB )
  50. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/initializer/RegisterService.php ( 1.33 KB )
  51. /data/web/baijiao_branch_collect/vendor/services.php ( 0.14 KB )
  52. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/service/PaginatorService.php ( 1.52 KB )
  53. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/service/ValidateService.php ( 0.99 KB )
  54. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/service/ModelService.php ( 2.04 KB )
  55. /data/web/baijiao_branch_collect/vendor/topthink/think-trace/src/Service.php ( 0.77 KB )
  56. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/Middleware.php ( 6.72 KB )
  57. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/initializer/BootService.php ( 0.77 KB )
  58. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/Paginator.php ( 11.86 KB )
  59. /data/web/baijiao_branch_collect/vendor/topthink/think-validate/src/Validate.php ( 63.20 KB )
  60. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/Model.php ( 23.55 KB )
  61. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/model/concern/Attribute.php ( 21.05 KB )
  62. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/model/concern/AutoWriteData.php ( 4.20 KB )
  63. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/model/concern/Conversion.php ( 6.75 KB )
  64. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/model/concern/DbConnect.php ( 5.16 KB )
  65. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/model/concern/ModelEvent.php ( 2.33 KB )
  66. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/model/concern/RelationShip.php ( 28.30 KB )
  67. /data/web/baijiao_branch_collect/vendor/topthink/think-helper/src/contract/Arrayable.php ( 0.09 KB )
  68. /data/web/baijiao_branch_collect/vendor/topthink/think-helper/src/contract/Jsonable.php ( 0.13 KB )
  69. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/model/contract/Modelable.php ( 0.09 KB )
  70. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/Db.php ( 2.88 KB )
  71. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/DbManager.php ( 8.52 KB )
  72. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/Log.php ( 6.28 KB )
  73. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/Manager.php ( 3.92 KB )
  74. /data/web/baijiao_branch_collect/vendor/psr/log/src/LoggerTrait.php ( 2.69 KB )
  75. /data/web/baijiao_branch_collect/vendor/psr/log/src/LoggerInterface.php ( 2.71 KB )
  76. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/Cache.php ( 4.92 KB )
  77. /data/web/baijiao_branch_collect/vendor/psr/simple-cache/src/CacheInterface.php ( 4.71 KB )
  78. /data/web/baijiao_branch_collect/vendor/topthink/think-helper/src/helper/Arr.php ( 17.45 KB )
  79. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/cache/driver/Redis.php ( 6.94 KB )
  80. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/cache/Driver.php ( 9.03 KB )
  81. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/contract/CacheHandlerInterface.php ( 1.99 KB )
  82. /data/web/baijiao_branch_collect/app/Request.php ( 0.09 KB )
  83. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/Request.php ( 55.78 KB )
  84. /data/web/baijiao_branch_collect/app/middleware.php ( 0.26 KB )
  85. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/Pipeline.php ( 2.61 KB )
  86. /data/web/baijiao_branch_collect/vendor/topthink/think-trace/src/TraceDebug.php ( 3.40 KB )
  87. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/Route.php ( 23.73 KB )
  88. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/route/RuleName.php ( 5.75 KB )
  89. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/route/Domain.php ( 2.53 KB )
  90. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/route/RuleGroup.php ( 22.43 KB )
  91. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/route/Rule.php ( 26.95 KB )
  92. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/route/RuleItem.php ( 9.78 KB )
  93. /data/web/baijiao_branch_collect/route/app.php ( 3.05 KB )
  94. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/facade/Route.php ( 4.70 KB )
  95. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/route/dispatch/Controller.php ( 4.74 KB )
  96. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/route/Dispatch.php ( 10.44 KB )
  97. /data/web/baijiao_branch_collect/app/controller/Index.php ( 33.26 KB )
  98. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/facade/Request.php ( 9.20 KB )
  99. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/route/Url.php ( 14.07 KB )
  100. /data/web/baijiao_branch_collect/app/model/IndexModel.php ( 19.95 KB )
  101. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/facade/Config.php ( 1.37 KB )
  102. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/facade/Cache.php ( 2.06 KB )
  103. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/facade/Db.php ( 0.93 KB )
  104. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/db/connector/Mysql.php ( 5.73 KB )
  105. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/db/PDOConnection.php ( 53.74 KB )
  106. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/db/Connection.php ( 8.39 KB )
  107. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/db/ConnectionInterface.php ( 4.57 KB )
  108. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/db/builder/Mysql.php ( 16.58 KB )
  109. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/db/Builder.php ( 24.07 KB )
  110. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/db/BaseBuilder.php ( 27.50 KB )
  111. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/db/Query.php ( 15.97 KB )
  112. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/db/BaseQuery.php ( 45.13 KB )
  113. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/db/concern/TimeFieldQuery.php ( 7.43 KB )
  114. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/db/concern/AggregateQuery.php ( 3.26 KB )
  115. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/db/concern/ModelRelationQuery.php ( 20.07 KB )
  116. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/db/concern/ParamsBind.php ( 3.66 KB )
  117. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/db/concern/ResultOperation.php ( 7.01 KB )
  118. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/db/concern/WhereQuery.php ( 19.37 KB )
  119. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/db/concern/JoinAndViewQuery.php ( 7.11 KB )
  120. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/db/concern/TableFieldInfo.php ( 2.63 KB )
  121. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/db/concern/Transaction.php ( 2.77 KB )
  122. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/log/driver/File.php ( 5.96 KB )
  123. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/contract/LogHandlerInterface.php ( 0.86 KB )
  124. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/log/Channel.php ( 3.89 KB )
  125. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/event/LogRecord.php ( 1.02 KB )
  126. /data/web/baijiao_branch_collect/vendor/topthink/think-helper/src/Collection.php ( 16.47 KB )
  127. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/Response.php ( 8.81 KB )
  128. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/response/View.php ( 3.29 KB )
  129. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/Cookie.php ( 6.06 KB )
  130. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/View.php ( 4.39 KB )
  131. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/view/driver/Php.php ( 6.44 KB )
  132. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/contract/TemplateHandlerInterface.php ( 1.60 KB )
  133. /data/web/baijiao_branch_collect/view/index/pc/school_news_details.php ( 2.39 KB )
  134. /data/web/baijiao_branch_collect/view/index/pc/school_top.php ( 5.76 KB )
  135. /data/web/baijiao_branch_collect/view/index/pc/school_right.php ( 2.17 KB )
  136. /data/web/baijiao_branch_collect/view/index/pc/school_bottom.php ( 1.16 KB )
  137. /data/web/baijiao_branch_collect/vendor/topthink/think-trace/src/Html.php ( 4.42 KB )
  1. CONNECT:[ UseTime:0.000301s ] mysql:host=127.0.0.1;port=3306;dbname=baijiao_branch_collect;charset=utf8
  2. SHOW FULL COLUMNS FROM `fqi_school` [ RunTime:0.000943s ]
  3. SELECT * FROM `fqi_school` WHERE `school_id` = '6822' AND `site_id` = 7 AND `school_status` = 1 LIMIT 1 [ RunTime:0.000314s ]
  4. SHOW FULL COLUMNS FROM `fqi_school_class` [ RunTime:0.000659s ]
  5. SELECT * FROM `fqi_school_class` WHERE `school_id` = 6822 [ RunTime:0.000237s ]
  6. SHOW FULL COLUMNS FROM `fqi_school_campus` [ RunTime:0.000672s ]
  7. SELECT * FROM `fqi_school_campus` WHERE `school_id` = 6822 [ RunTime:0.000237s ]
  8. SHOW FULL COLUMNS FROM `fqi_school_news` [ RunTime:0.000716s ]
  9. SELECT `a`.*,`content` FROM `fqi_school_news` `a` LEFT JOIN `fqi_school_news_content` `b` ON `b`.`content_id`=`a`.`content_id` WHERE `school_id` = 6822 AND `a`.`content_id` = '37235' AND `news_status` = 1 AND `school_status` = 1 LIMIT 1 [ RunTime:0.001050s ]
  10. (select content_id,news_name,school_id from fqi_school_news where school_id = '6822' and content_id < '37235' and site_id <= '7' order by content_id desc limit 1) union all(select content_id,news_name,school_id from fqi_school_news where school_id = '6822' and content_id > '37235' and site_id <= '7' order by content_id asc limit 1) [ RunTime:0.000628s ]
  11. SHOW FULL COLUMNS FROM `fqi_school_course` [ RunTime:0.001001s ]
  12. SELECT * FROM `fqi_school_course` WHERE `school_id` = 6822 AND `site_id` = 7 AND `course_status` = 1 AND `school_status` = 1 ORDER BY `course_id` DESC LIMIT 4 [ RunTime:0.000476s ]
  13. SELECT * FROM `fqi_school_course` WHERE `school_id` = 6822 AND `school_status` = 1 AND `course_status` = 1 ORDER BY `course_id` DESC LIMIT 8 [ RunTime:0.000260s ]
  14. SELECT * FROM `fqi_school_news` WHERE `school_id` = 6822 ORDER BY `click` DESC,`news_id` DESC LIMIT 5 [ RunTime:0.000207s ]
  15. SELECT `content_id`,`news_name`,`a`.`school_id`,`b`.`school_name` FROM `fqi_school_news` `a` LEFT JOIN `fqi_school` `b` ON `b`.`school_id`=`a`.`school_id` WHERE `a`.`site_id` = '7' AND `b`.`school_status` = '1' AND `news_status` = 1 AND `content_id` < 37235 ORDER BY `content_id` DESC LIMIT 20 [ RunTime:0.011028s ]
0.023710s