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[Web]93 ajax的前端实现（补）
【web前端工程师】171/341
![[Web]92 如何验证用户名](http://p26-sign.bdxiguaimg.com/tos-cn-i-0004/5736ae205bce4b53894070905eee9af0~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250203094037B1F43943ABD253089014&requestFrom=704&version_code=80402&x-expires=1770082838&x-signature=kkbcRjhRx2UCxNG0MSWe%2BCTgWm8%3D)
App11:10![[Web]93 ajax的前端实现（补）](http://p26-sign.bdxiguaimg.com/tos-cn-i-0004/1ff1718c0c7846aebcf3bcad99189122~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250203094037B1F43943ABD253089014&requestFrom=704&version_code=80402&x-expires=1770082838&x-signature=viiCUbkKWVq1xtfmMtXdNfuBWDY%3D)
App12:18![[Web]94 ajax后端实现](http://p3-sign.bdxiguaimg.com/tos-cn-i-0004/09b738eccbf84c7c9f1e3e0ea0ce157d~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250203094037B1F43943ABD253089014&requestFrom=704&version_code=80402&x-expires=1770082838&x-signature=9PLnlL7EFbrYaO4eE9rv5X5cayo%3D)
App09:36![[Web]95 ajax中的get请求](http://p3-sign.bdxiguaimg.com/tos-cn-i-0004/53e6666371554b09bc517c856c1c61c9~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250203094037B1F43943ABD253089014&requestFrom=704&version_code=80402&x-expires=1770082838&x-signature=Frq31Q5EUycpZaExsUbYVu4h%2FKg%3D)
App09:06![[Web]96 ajax中的post请求](http://p26-sign.bdxiguaimg.com/tos-cn-i-0004/ed8fc953460a4b53b6ff15342418517e~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250203094037B1F43943ABD253089014&requestFrom=704&version_code=80402&x-expires=1770082838&x-signature=Vl%2FN%2Bkp4PBQ1XFjkegszQTO%2B%2BWs%3D)
App12:51![[Web]97 同步及异步ajax](http://p3-sign.bdxiguaimg.com/tos-cn-i-0004/9a3068b878f943fca6ec83fece34f087~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250203094037B1F43943ABD253089014&requestFrom=704&version_code=80402&x-expires=1770082838&x-signature=XMtokkG%2F49Pat%2B1dAwSxiRulrmY%3D)
App11:39![[Web]98 xml数据返还](http://p26-sign.bdxiguaimg.com/tos-cn-i-0004/e3b8eb4f5ee94e359a53aa233df4c24a~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250203094037B1F43943ABD253089014&requestFrom=704&version_code=80402&x-expires=1770082838&x-signature=H7d15PKKRGDVOG0%2F8lQTKKsOsZk%3D)
App08:00![[Web]99 FormData实现文件上传](http://p3-sign.bdxiguaimg.com/tos-cn-i-0004/12d793c5cfae41a49afb14e9990d8d9b~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250203094037B1F43943ABD253089014&requestFrom=704&version_code=80402&x-expires=1770082838&x-signature=8QcctFtoW%2Bi81lFYdnseVMKdTus%3D)
App12:34![[Web]100 上传文件事件钩子](http://p26-sign.bdxiguaimg.com/tos-cn-i-0004/1534b06468264a6a8688a8c36bfa1ffb~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250203094037B1F43943ABD253089014&requestFrom=704&version_code=80402&x-expires=1770082838&x-signature=ClB4y42MEl%2Bsf55YW05LwzWgAGA%3D)
App12:23![[Web]101 上传进度及速度](http://p26-sign.bdxiguaimg.com/tos-cn-i-0004/62fbd2e39b1e4dbaa3be31f942393e52~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250203094037B1F43943ABD253089014&requestFrom=704&version_code=80402&x-expires=1770082838&x-signature=oRdpy%2BfVARrx6EamEKyHA2YIb8k%3D)
App11:40![[Web]102 上传单位处理及总结](http://p26-sign.bdxiguaimg.com/tos-cn-i-0004/2e68cc6b54cd49ad83cce3b672022527~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250203094037B1F43943ABD253089014&requestFrom=704&version_code=80402&x-expires=1770082838&x-signature=sCvNEKOopPWhPID2aV5jFgqzWt0%3D)
App10:22![[Web]103.0 第九章第1节： 前后端交互-1](http://p3-sign.bdxiguaimg.com/tos-cn-i-0004/9ea3283a951c45ab9b40d8fcecab6a81~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250203094037B1F43943ABD253089014&requestFrom=704&version_code=80402&x-expires=1770082838&x-signature=nDDOqUaDtvC9etufqYaOvjSfDjM%3D)
App18:00![[Web]103.1 第九章第1节： 前后端交互-1](http://p26-sign.bdxiguaimg.com/tos-cn-i-0004/fca12099c27b4a9d98d29d2f2d5ab86e~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250203094037B1F43943ABD253089014&requestFrom=704&version_code=80402&x-expires=1770082838&x-signature=Y8cVJFXxS14H1588cg5yyIo3J88%3D)
App15:19![[Web]103.2 第九章第1节： 前后端交互-1](http://p3-sign.bdxiguaimg.com/tos-cn-i-0004/2d4b1e95e0794076ba6a5b52022ad3c7~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250203094037B1F43943ABD253089014&requestFrom=704&version_code=80402&x-expires=1770082838&x-signature=u44RcKZYDQH8PxqTvtRLtGmCPO8%3D)
App16:27![[Web]103.3 第九章第1节： 前后端交互-1](http://p26-sign.bdxiguaimg.com/tos-cn-i-0004/4ac558cce7034be39a98f23e179cef45~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250203094037B1F43943ABD253089014&requestFrom=704&version_code=80402&x-expires=1770082838&x-signature=RPPV2cbsSb5t%2BinDMqRihvoKPjw%3D)
App18:32![[Web]103.4 第九章第1节： 前后端交互-1](http://p26-sign.bdxiguaimg.com/tos-cn-i-0004/5e49cdbfb637404bae937f154d68da52~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250203094037B1F43943ABD253089014&requestFrom=704&version_code=80402&x-expires=1770082838&x-signature=FjcDlJ3inUiGdWAtCucEQS5%2Bwn4%3D)
App19:03![[Web]103.5 第九章第1节： 前后端交互-1](http://p3-sign.bdxiguaimg.com/tos-cn-i-0004/d69ca65a29ec459bb336460081b7e956~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250203094037B1F43943ABD253089014&requestFrom=704&version_code=80402&x-expires=1770082838&x-signature=mDlfzFBzLIsbDwqRNVPMfyDZmng%3D)
App27:04![[Web]103.6 第九章第1节： 前后端交互-1](http://p3-sign.bdxiguaimg.com/tos-cn-i-0004/d1f9363b13484b96b1e5d6d3f22bddc5~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250203094037B1F43943ABD253089014&requestFrom=704&version_code=80402&x-expires=1770082838&x-signature=D0QBvPIcrUfrbxLewUiLsD7i8B0%3D)
App13:02![[Web]104 ajax不能跨域](http://p3-sign.bdxiguaimg.com/tos-cn-i-0004/79e7b8c288524c5e9387e950cf6834d0~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250203094037B1F43943ABD253089014&requestFrom=704&version_code=80402&x-expires=1770082838&x-signature=wEJZXm6jBby%2FeTzOdSAyPEA1eqo%3D)
App14:10![[Web]105 jsonp原理](http://p26-sign.bdxiguaimg.com/tos-cn-i-0004/4359b6a3e77c45da957b554906f5ecfe~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250203094037B1F43943ABD253089014&requestFrom=704&version_code=80402&x-expires=1770082838&x-signature=Dywy31OFA%2BleHh2O77fTbZw17Yc%3D)
App08:10![[Web]106 动态创建script实现请求](http://p26-sign.bdxiguaimg.com/tos-cn-i-0004/953432f9738a437e9024e59c2d853904~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250203094037B1F43943ABD253089014&requestFrom=704&version_code=80402&x-expires=1770082838&x-signature=ZRj3%2FmJ8y0eDN%2BoL942ESTOM3Iw%3D)
App10:18![[Web]107 jsonp的ajax封装](http://p26-sign.bdxiguaimg.com/tos-cn-i-0004/9718ae1edc134bb0af17939f807d6f13~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250203094037B1F43943ABD253089014&requestFrom=704&version_code=80402&x-expires=1770082838&x-signature=IE5Dcu5mcAX8xP8%2BVlVp8v%2FAG9w%3D)
App14:55![[Web]108 请求百度jsonp接口](http://p3-sign.bdxiguaimg.com/tos-cn-i-0004/0c5413f52ac246ef8510ad5b93d06f90~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250203094037B1F43943ABD253089014&requestFrom=704&version_code=80402&x-expires=1770082838&x-signature=hFKlxU5SoaQ0RHnZ5XhJyVIUl4Q%3D)
App08:55![[Web]109 蘑菇街动态数据获取](http://p26-sign.bdxiguaimg.com/tos-cn-i-0004/215b9f2f5934484c944386364d2cdf27~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250203094037B1F43943ABD253089014&requestFrom=704&version_code=80402&x-expires=1770082838&x-signature=O3kDFjTBxWdBs%2FSzXe7Q0bQ35dE%3D)
App14:04![[Web]110 蘑菇街下拉加载功能](http://p26-sign.bdxiguaimg.com/tos-cn-i-0004/d69a9530330e4d8b9947c826984ed5b8~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250203094037B1F43943ABD253089014&requestFrom=704&version_code=80402&x-expires=1770082838&x-signature=HorSBJeVj7tvRNZwoQbhrlZ6ZZo%3D)
App06:47![[Web]111.0 前后端交互 - 2](http://p26-sign.bdxiguaimg.com/tos-cn-i-0004/aa0e6f4dfeec4f608ebb54ecf995df34~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250203094037B1F43943ABD253089014&requestFrom=704&version_code=80402&x-expires=1770082838&x-signature=I3Nf8YnYxhcC%2BB8hpVA08IRnuz0%3D)
App30:20![[Web]111.1 前后端交互 - 2](http://p3-sign.bdxiguaimg.com/tos-cn-i-0004/93b8028a082f4201903cfac243517b10~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250203094037B1F43943ABD253089014&requestFrom=704&version_code=80402&x-expires=1770082838&x-signature=jvmQHxcZ1fahvl64slg4pV8YoJI%3D)
App23:23![[Web]111.2 前后端交互 - 2](http://p26-sign.bdxiguaimg.com/tos-cn-i-0004/4456288e46724db3bceb896f43a7f69d~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250203094037B1F43943ABD253089014&requestFrom=704&version_code=80402&x-expires=1770082838&x-signature=H6PRPnAegtvDZBazxpiynlgj2Os%3D)
App24:17![[Web]111.3 前后端交互 - 2](http://p3-sign.bdxiguaimg.com/tos-cn-i-0004/a577f468252746d3932b9ebe021c2f76~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250203094037B1F43943ABD253089014&requestFrom=704&version_code=80402&x-expires=1770082838&x-signature=fIv6krY5ILG093A6Bh6bO8%2F%2FJSk%3D)
App14:30![[Web]111.4 前后端交互 - 2](http://p3-sign.bdxiguaimg.com/tos-cn-i-0004/730cc67a2e8249d18f17af0b952aa55f~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250203094037B1F43943ABD253089014&requestFrom=704&version_code=80402&x-expires=1770082838&x-signature=UbSUduOTVD%2BqV8Oi3CaE1RxIjw8%3D)
App14:06![[Web]111.5 前后端交互 - 2](http://p3-sign.bdxiguaimg.com/tos-cn-i-0004/ffd852fb6eb64fd3b1b3ecf8a8b4476c~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250203094037B1F43943ABD253089014&requestFrom=704&version_code=80402&x-expires=1770082838&x-signature=QOslaHQxMc3ZeQTVljDcxorFv3s%3D)
App16:56打开App观看
