var cityObj = [{ "id": "35", "provincecode": "150000", "city": "\u963f\u62c9\u5584\u76df", "code": "152900", "initial": "A" }, { "id": "38", "provincecode": "210000", "city": "\u978d\u5c71\u5e02", "code": "210300", "initial": "A" }, { "id": "105", "provincecode": "340000", "city": "\u5b89\u5e86\u5e02", "code": "340800", "initial": "A" }, { "id": "156", "provincecode": "410000", "city": "\u5b89\u9633\u5e02", "code": "410500", "initial": "A" }, { "id": "256", "provincecode": "510000", "city": "\u963f\u575d\u85cf\u65cf\u7f8c\u65cf\u81ea\u6cbb\u5dde", "code": "513200", "initial": "A" }, { "id": "262", "provincecode": "520000", "city": "\u5b89\u987a\u5e02", "code": "520400", "initial": "A" }, { "id": "289", "provincecode": "540000", "city": "\u963f\u91cc\u5730\u533a", "code": "542500", "initial": "A" }, { "id": "299", "provincecode": "610000", "city": "\u5b89\u5eb7\u5e02", "code": "610900", "initial": "A" }, { "id": "335", "provincecode": "650000", "city": "\u963f\u514b\u82cf\u5730\u533a", "code": "652900", "initial": "A" }, { "id": "341", "provincecode": "650000", "city": "\u963f\u52d2\u6cf0\u5730\u533a", "code": "654300", "initial": "A" }, { "id": "1", "provincecode": "110000", "city": "\u5317\u4eac\u5e02", "code": "110100", "initial": "B" }, { "id": "7", "provincecode": "130000", "city": "\u4fdd\u5b9a\u5e02", "code": "130600", "initial": "B" }, { "id": "25", "provincecode": "150000", "city": "\u5305\u5934\u5e02", "code": "150200", "initial": "B" }, { "id": "31", "provincecode": "150000", "city": "\u5df4\u5f66\u6dd6\u5c14\u5e02", "code": "150800", "initial": "B" }, { "id": "40", "provincecode": "210000", "city": "\u672c\u6eaa\u5e02", "code": "210500", "initial": "B" }, { "id": "55", "provincecode": "220000", "city": "\u767d\u5c71\u5e02", "code": "220600", "initial": "B" }, { "id": "57", "provincecode": "220000", "city": "\u767d\u57ce\u5e02", "code": "220800", "initial": "B" }, { "id": "100", "provincecode": "340000", "city": "\u868c\u57e0\u5e02", "code": "340300", "initial": "B" }, { "id": "150", "provincecode": "370000", "city": "\u6ee8\u5dde\u5e02", "code": "371600", "initial": "B" }, { "id": "222", "provincecode": "450000", "city": "\u5317\u6d77\u5e02", "code": "450500", "initial": "B" }, { "id": "227", "provincecode": "450000", "city": "\u767e\u8272\u5e02", "code": "451000", "initial": "B" }, { "id": "254", "provincecode": "510000", "city": "\u5df4\u4e2d\u5e02", "code": "511900", "initial": "B" }, { "id": "265", "provincecode": "520000", "city": "\u6bd5\u8282\u5730\u533a", "code": "522400", "initial": "B" }, { "id": "271", "provincecode": "530000", "city": "\u4fdd\u5c71\u5e02", "code": "530500", "initial": "B" }, { "id": "293", "provincecode": "610000", "city": "\u5b9d\u9e21\u5e02", "code": "610300", "initial": "B" }, { "id": "304", "provincecode": "620000", "city": "\u767d\u94f6\u5e02", "code": "620400", "initial": "B" }, { "id": "333", "provincecode": "650000", "city": "\u535a\u5c14\u5854\u62c9\u8499\u53e4\u81ea\u6cbb\u5dde", "code": "652700", "initial": "B" }, { "id": "334", "provincecode": "650000", "city": "\u5df4\u97f3\u90ed\u695e\u8499\u53e4\u81ea\u6cbb\u5dde", "code": "652800", "initial": "B" }, { "id": "9", "provincecode": "130000", "city": "\u627f\u5fb7\u5e02", "code": "130800", "initial": "C" }, { "id": "10", "provincecode": "130000", "city": "\u6ca7\u5dde\u5e02", "code": "130900", "initial": "C" }, { "id": "16", "provincecode": "140000", "city": "\u957f\u6cbb\u5e02", "code": "140400", "initial": "C" }, { "id": "27", "provincecode": "150000", "city": "\u8d64\u5cf0\u5e02", "code": "150400", "initial": "C" }, { "id": "48", "provincecode": "210000", "city": "\u671d\u9633\u5e02", "code": "211300", "initial": "C" }, { "id": "50", "provincecode": "220000", "city": "\u957f\u6625\u5e02", "code": "220100", "initial": "C" }, { "id": "77", "provincecode": "320000", "city": "\u5e38\u5dde\u5e02", "code": "320400", "initial": "C" }, { "id": "107", "provincecode": "340000", "city": "\u6ec1\u5dde\u5e02", "code": "341100", "initial": "C" }, { "id": "110", "provincecode": "340000", "city": "\u5de2\u6e56\u5e02", "code": "341400", "initial": "C" }, { "id": "113", "provincecode": "340000", "city": "\u6c60\u5dde\u5e02", "code": "341700", "initial": "C" }, { "id": "183", "provincecode": "430000", "city": "\u957f\u6c99\u5e02", "code": "430100", "initial": "C" }, { "id": "189", "provincecode": "430000", "city": "\u5e38\u5fb7\u5e02", "code": "430700", "initial": "C" }, { "id": "192", "provincecode": "430000", "city": "\u90f4\u5dde\u5e02", "code": "431000", "initial": "C" }, { "id": "215", "provincecode": "440000", "city": "\u6f6e\u5dde\u5e02", "code": "445100", "initial": "C" }, { "id": "231", "provincecode": "450000", "city": "\u5d07\u5de6\u5e02", "code": "451400", "initial": "C" }, { "id": "238", "provincecode": "510000", "city": "\u6210\u90fd\u5e02", "code": "510100", "initial": "C" }, { "id": "276", "provincecode": "530000", "city": "\u695a\u96c4\u5f5d\u65cf\u81ea\u6cbb\u5dde", "code": "532300", "initial": "C" }, { "id": "285", "provincecode": "540000", "city": "\u660c\u90fd\u5730\u533a", "code": "542100", "initial": "C" }, { "id": "332", "provincecode": "650000", "city": "\u660c\u5409\u56de\u65cf\u81ea\u6cbb\u5dde", "code": "652300", "initial": "C" }, { "id": "14", "provincecode": "140000", "city": "\u5927\u540c\u5e02", "code": "140200", "initial": "D" }, { "id": "37", "provincecode": "210000", "city": "\u5927\u8fde\u5e02", "code": "210200", "initial": "D" }, { "id": "41", "provincecode": "210000", "city": "\u4e39\u4e1c\u5e02", "code": "210600", "initial": "D" }, { "id": "64", "provincecode": "230000", "city": "\u5927\u5e86\u5e02", "code": "230600", "initial": "D" }, { "id": "71", "provincecode": "230000", "city": "\u5927\u5174\u5b89\u5cad\u5730\u533a", "code": "232700", "initial": "D" }, { "id": "139", "provincecode": "370000", "city": "\u4e1c\u8425\u5e02", "code": "370500", "initial": "D" }, { "id": "148", "provincecode": "370000", "city": "\u5fb7\u5dde\u5e02", "code": "371400", "initial": "D" }, { "id": "213", "provincecode": "440000", "city": "\u4e1c\u839e\u5e02", "code": "441900", "initial": "D" }, { "id": "242", "provincecode": "510000", "city": "\u5fb7\u9633\u5e02", "code": "510600", "initial": "D" }, { "id": "252", "provincecode": "510000", "city": "\u8fbe\u5dde\u5e02", "code": "511700", "initial": "D" }, { "id": "280", "provincecode": "530000", "city": "\u5927\u7406\u767d\u65cf\u81ea\u6cbb\u5dde", "code": "532900", "initial": "D" }, { "id": "281", "provincecode": "530000", "city": "\u5fb7\u5b8f\u50a3\u65cf\u666f\u9887\u65cf\u81ea\u6cbb\u5dde", "code": "533100", "initial": "D" }, { "id": "283", "provincecode": "530000", "city": "\u8fea\u5e86\u85cf\u65cf\u81ea\u6cbb\u5dde", "code": "533400", "initial": "D" }, { "id": "311", "provincecode": "620000", "city": "\u5b9a\u897f\u5e02", "code": "621100", "initial": "D" }, { "id": "29", "provincecode": "150000", "city": "\u9102\u5c14\u591a\u65af\u5e02", "code": "150600", "initial": "E" }, { "id": "174", "provincecode": "420000", "city": "\u9102\u5dde\u5e02", "code": "420700", "initial": "E" }, { "id": "181", "provincecode": "420000", "city": "\u6069\u65bd\u571f\u5bb6\u65cf\u82d7\u65cf\u81ea\u6cbb\u5dde", "code": "422800", "initial": "E" }, { "id": "39", "provincecode": "210000", "city": "\u629a\u987a\u5e02", "code": "210400", "initial": "F" }, { "id": "44", "provincecode": "210000", "city": "\u961c\u65b0\u5e02", "code": "210900", "initial": "F" }, { "id": "108", "provincecode": "340000", "city": "\u961c\u9633\u5e02", "code": "341200", "initial": "F" }, { "id": "115", "provincecode": "350000", "city": "\u798f\u5dde\u5e02", "code": "350100", "initial": "F" }, { "id": "133", "provincecode": "360000", "city": "\u629a\u5dde\u5e02", "code": "361000", "initial": "F" }, { "id": "202", "provincecode": "440000", "city": "\u4f5b\u5c71\u5e02", "code": "440600", "initial": "F" }, { "id": "223", "provincecode": "450000", "city": "\u9632\u57ce\u6e2f\u5e02", "code": "450600", "initial": "F" }, { "id": "130", "provincecode": "
微信小程序-城市切换.rar
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更新于2023-12-09
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微信小程序是一种轻量级的应用开发平台,由腾讯公司推出,主要应用于移动端,旨在提供便捷的、无需下载安装即可使用的应用体验。"微信小程序-城市切换"这个项目显然聚焦于实现用户在不同城市间的切换功能,这在诸如天气预报、出行导航、本地服务类的小程序中是非常常见且重要的。
我们要理解微信小程序的基本开发环境。开发者需要使用微信开发者工具,它集成了代码编辑、预览、调试和发布等功能。源码通常由JSON、WXML(WeChat Markup Language)、WXSS(WeChat Style Sheets)和JavaScript组成。JSON文件用于配置小程序的各种属性,如页面路由、网络请求域名等;WXML是微信特有的结构语言,负责定义视图结构;WXSS类似于CSS,用来控制样式;JavaScript则处理业务逻辑和数据管理。
在“城市切换”功能中,JavaScript是核心部分。开发者需要创建一个城市列表,并在用户界面上展示。这可能通过一个下拉选择器或者滑动选择器实现,让用户能够方便地浏览和选择不同的城市。选择器的数据源可以通过本地存储或者API接口获取,例如调用高德地图或百度地图的API来获取全国城市的列表信息。
WXML文件中,会包含城市选择器的结构定义,比如<picker>组件,以及相关的事件绑定,如bindchange事件,当用户选择城市时触发,更新选中的城市值。同时,可能会有一个显示当前城市的元素,如<text>组件,根据JavaScript中的数据模型动态更新显示内容。
WXSS文件主要负责选择器和城市名称的样式设计,包括字体大小、颜色、布局等,确保界面美观且易于操作。同时,考虑到用户体验,可能还需要对不同屏幕尺寸进行适配,确保在各种设备上都能正常显示。
此外,微信小程序还强调了数据的管理和状态控制。在城市切换的场景中,开发者可能会使用到微信小程序的Page对象提供的data属性来存储当前选中的城市,以及onLoad和onShow生命周期函数来初始化和更新数据。如果涉及到网络请求,那么wx.request方法会被用到,用来从服务器获取城市数据。
测试和调试是开发过程中的重要环节。微信开发者工具提供了真机预览和模拟器调试功能,帮助开发者检查代码逻辑、查看网络请求和数据变化,确保城市切换功能的正确性和稳定性。
总结来说,“微信小程序-城市切换”项目涵盖了微信小程序的基础架构、数据管理、用户交互、网络请求以及界面设计等多个方面,对于学习微信小程序开发和提高用户体验设计能力具有很高的实践价值。通过这个项目,开发者可以深入理解微信小程序的开发流程,并掌握如何实现动态数据驱动的用户界面。
程序员陈师傅
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