| ylbtech-小程序-demo：小程序示例 |
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| 1.返回顶部 |
0、
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1、app.js
const openIdUrl = require('./config').openIdUrl
App({
onLaunch: function () {
console.log('App Launch')
},
onShow: function () {
console.log('App Show')
},
onHide: function () {
console.log('App Hide')
},
globalData: {
hasLogin: false,
openid: null
},
// lazy loading openid
getUserOpenId: function(callback) {
var self = this
if (self.globalData.openid) {
callback(null, self.globalData.openid)
} else {
wx.login({
success: function(data) {
wx.request({
url: openIdUrl,
data: {
code: data.code
},
success: function(res) {
console.log('拉取openid成功', res)
self.globalData.openid = res.data.openid
callback(null, self.globalData.openid)
},
fail: function(res) {
console.log('拉取用户openid失败，将无法正常使用开放接口等服务', res)
callback(res)
}
})
},
fail: function(err) {
console.log('wx.login 接口调用失败，将无法正常使用开放接口等服务', err)
callback(err)
}
})
}
}
})
2、app.json
{ "pages": [ "page/component/index", "page/component/pages/view/view", "page/component/pages/scroll-view/scroll-view", "page/component/pages/swiper/swiper", "page/component/pages/text/text", "page/component/pages/icon/icon", "page/component/pages/progress/progress", "page/component/pages/button/button", "page/component/pages/checkbox/checkbox", "page/component/pages/form/form", "page/component/pages/input/input", "page/component/pages/label/label", "page/component/pages/picker/picker", "page/component/pages/radio/radio", "page/component/pages/slider/slider", "page/component/pages/switch/switch", "page/component/pages/textarea/textarea", "page/component/pages/navigator/navigator", "page/component/pages/navigator/navigate", "page/component/pages/navigator/redirect", "page/component/pages/image/image", "page/component/pages/audio/audio", "page/component/pages/video/video", "page/component/pages/map/map", "page/component/pages/canvas/canvas", "page/API/index", "page/API/pages/login/login", "page/API/pages/get-user-info/get-user-info", "page/API/pages/request-payment/request-payment", "page/API/pages/share/share", "page/API/pages/custom-message/custom-message", "page/API/pages/template-message/template-message", "page/API/pages/set-navigation-bar-title/set-navigation-bar-title", "page/API/pages/navigation-bar-loading/navigation-bar-loading", "page/API/pages/navigator/navigator", "page/API/pages/pull-down-refresh/pull-down-refresh", "page/API/pages/animation/animation", "page/API/pages/action-sheet/action-sheet", "page/API/pages/modal/modal", "page/API/pages/toast/toast", "page/API/pages/get-network-type/get-network-type", "page/API/pages/get-system-info/get-system-info", "page/API/pages/on-compass-change/on-compass-change", "page/API/pages/make-phone-call/make-phone-call", "page/API/pages/scan-code/scan-code", "page/API/pages/request/request", "page/API/pages/web-socket/web-socket", "page/API/pages/upload-file/upload-file", "page/API/pages/download-file/download-file", "page/API/pages/image/image", "page/API/pages/voice/voice", "page/API/pages/file/file", "page/API/pages/on-accelerometer-change/on-accelerometer-change", "page/API/pages/canvas/canvas", "page/API/pages/background-audio/background-audio", "page/API/pages/video/video", "page/API/pages/get-location/get-location", "page/API/pages/open-location/open-location", "page/API/pages/choose-location/choose-location", "page/API/pages/storage/storage" ], "window": { "navigationBarTextStyle": "black", "navigationBarTitleText": "演示", "navigationBarBackgroundColor": "#F8F8F8", "backgroundColor": "#F8F8F8" }, "tabBar": { "color": "#7A7E83", "selectedColor": "#3cc51f", "borderStyle": "black", "backgroundColor": "#ffffff", "list": [{ "pagePath": "page/component/index", "iconPath": "image/icon_component.png", "selectedIconPath": "image/icon_component_HL.png", "text": "组件" }, { "pagePath": "page/API/index", "iconPath": "image/icon_API.png", "selectedIconPath": "image/icon_API_HL.png", "text": "接口" }] }, "networkTimeout": { "request": 10000, "connectSocket": 10000, "uploadFile": 10000, "downloadFile": 10000 }, "debug": false }
3、app.wxss
/* reset */ page { background-color: #F8F8F8; height: 100%; font-size: 32rpx; line-height: 1.6; } checkbox, radio{ margin-right: 10rpx; } button{ margin-top: 20rpx; margin-bottom: 20rpx; } form{ width: 100%; } /* lib */ .strong{ font-weight: bold; } .tc{ text-align: center; } /* page */ .container { display: flex; flex-direction: column; min-height: 100%; justify-content: space-between; font-size: 32rpx; font-family: -apple-system-font,Helvetica Neue,Helvetica,sans-serif; } .page-head{ padding: 60rpx 50rpx 80rpx; text-align: center; } .page-head-title{ display: inline-block; padding: 0 40rpx 20rpx 40rpx; font-size: 32rpx; color: #BEBEBE; } .page-head-line{ margin: 0 auto; width: 150rpx; height: 2rpx; background-color: #D8D8D8; } .page-head-desc{ padding-top: 20rpx; color: #9B9B9B; font-size: 32rpx; } .page-body { width: 100%; flex-grow: 1; overflow-x: hidden; } .page-body-wrapper { display: flex; flex-direction: column; align-items: center; width: 100%; } .page-body-wording { text-align: center; padding: 200rpx 100rpx; } .page-body-info { display: flex; flex-direction: column; align-items: center; background-color: #fff; width: 100%; padding: 50rpx 0 150rpx 0; } .page-body-title { margin-bottom: 100rpx; font-size: 32rpx; } .page-body-text { font-size: 30rpx; line-height: 26px; color: #ccc; } .page-body-text-small { font-size: 24rpx; color: #000; margin-bottom: 100rpx; } .page-foot{ margin: 100rpx 0 30rpx 0; text-align: center; color: #1aad19; font-size: 0; } .icon-foot{ width: 152rpx; height: 23rpx; } .page-section{ width: 100%; margin-bottom: 60rpx; } .page-section_center{ display: flex; flex-direction: column; align-items: center; } .page-section:last-child{ margin-bottom: 0; } .page-section-gap{ box-sizing: border-box; padding: 0 30rpx; } .page-section-spacing{ box-sizing: border-box; padding: 0 80rpx; } .page-section-title{ font-size: 28rpx; color: #999999; margin-bottom: 10rpx; padding-left: 30rpx; padding-right: 30rpx; } .page-section-gap .page-section-title{ padding-left: 0; padding-right: 0; } .page-section-ctn{ } /* widget */ .btn-area{ margin-top: 60rpx; box-sizing: border-box; width: 100%; padding: 0 30rpx; } .image-plus { width: 150rpx; height: 150rpx; border: 2rpx solid #D9D9D9; position: relative; } .image-plus-nb{ border: 0; } .image-plus-text{ color: #888888; font-size: 28rpx; } .image-plus-horizontal { position: absolute; top: 50%; left: 50%; background-color: #d9d9d9; width: 4rpx; height: 80rpx; transform: translate(-50%, -50%); } .image-plus-vertical { position: absolute; top: 50%; left: 50%; background-color: #d9d9d9; width: 80rpx; height: 4rpx; transform: translate(-50%, -50%); } .demo-text-1{ position: relative; align-items: center; justify-content: center; background-color: #1AAD19; color: #FFFFFF; font-size: 36rpx; } .demo-text-1:before{ content: 'A'; position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); } .demo-text-2{ position: relative; align-items: center; justify-content: center; background-color: #2782D7; color: #FFFFFF; font-size: 36rpx; } .demo-text-2:before{ content: 'B'; position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); } .demo-text-3{ position: relative; align-items: center; justify-content: center; background-color: #F1F1F1; color: #353535; font-size: 36rpx; } .demo-text-3:before{ content: 'C'; position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); }
4、config.js
/** * 小程序配置文件 */ // 此处主机域名是腾讯云解决方案分配的域名 // 小程序后台服务解决方案：https://www.qcloud.com/solution/la var host = "14592619.qcloud.la" var config = { // 下面的地址配合云端 Server 工作 host, // 登录地址，用于建立会话 loginUrl: `https://${host}/login`, // 测试的请求地址，用于测试会话 requestUrl: `https://${host}/testRequest`, // 用code换取openId openIdUrl: `https://${host}/openid`, // 测试的信道服务接口 tunnelUrl: `https://${host}/tunnel`, // 生成支付订单的接口 paymentUrl: `https://${host}/payment`, // 发送模板消息接口 templateMessageUrl: `https://${host}/templateMessage`, // 上传文件接口 uploadFileUrl: `https://${host}/upload`, // 下载示例图片接口 downloadExampleUrl: `https://${host}/static/weapp.jpg` }; module.exports = config
4、project.config.json
{ "description": "项目配置文件。", "setting": { "urlCheck": true, "es6": true, "postcss": true, "minified": true, "newFeature": true }, "compileType": "miniprogram", "libVersion": "1.6.4", "appid": "wx7d22ab7088f2db6a", "projectname": "wechatApp", "condition": { "search": { "current": -1, "list": [] }, "conversation": { "current": -1, "list": [] }, "miniprogram": { "current": -1, "list": [] } } }
5、image
6、page
7、utll
-util.js
function formatTime(time) { if (typeof time !== 'number' || time < 0) { return time } var hour = parseInt(time / 3600) time = time % 3600 var minute = parseInt(time / 60) time = time % 60 var second = time return ([hour, minute, second]).map(function (n) { n = n.toString() return n[1] ? n : '0' + n }).join(':') } function formatLocation(longitude, latitude) { if (typeof longitude === 'string' && typeof latitude === 'string') { longitude = parseFloat(longitude) latitude = parseFloat(latitude) } longitude = longitude.toFixed(2) latitude = latitude.toFixed(2) return { longitude: longitude.toString().split('.'), latitude: latitude.toString().split('.') } } module.exports = { formatTime: formatTime, formatLocation: formatLocation }
8、vendor
9、
| 2. vendor返回顶部 |
1、qcloud-weapp-client-sdk
1.1、lib
-constants.js
module.exports = { WX_HEADER_CODE: 'X-WX-Code', WX_HEADER_ENCRYPTED_DATA: 'X-WX-Encrypted-Data', WX_HEADER_IV: 'X-WX-IV', WX_HEADER_ID: 'X-WX-Id', WX_HEADER_SKEY: 'X-WX-Skey', WX_SESSION_MAGIC_ID: 'F2C224D4-2BCE-4C64-AF9F-A6D872000D1A', ERR_INVALID_PARAMS: 'ERR_INVALID_PARAMS', ERR_WX_LOGIN_FAILED: 'ERR_WX_LOGIN_FAILED', ERR_WX_GET_USER_INFO: 'ERR_WX_GET_USER_INFO', ERR_LOGIN_TIMEOUT: 'ERR_LOGIN_TIMEOUT', ERR_LOGIN_FAILED: 'ERR_LOGIN_FAILED', ERR_LOGIN_SESSION_NOT_RECEIVED: 'ERR_LOGIN_MISSING_SESSION', ERR_INVALID_SESSION: 'ERR_INVALID_SESSION', ERR_CHECK_LOGIN_FAILED: 'ERR_CHECK_LOGIN_FAILED', };
-login.js
-request.js
var constants = require('./constants'); var utils = require('./utils'); var Session = require('./session'); var loginLib = require('./login'); var noop = function noop() {}; var buildAuthHeader = function buildAuthHeader(session) { var header = {}; if (session && session.id && session.skey) { header[constants.WX_HEADER_ID] = session.id; header[constants.WX_HEADER_SKEY] = session.skey; } return header; }; /*** * @class * 表示请求过程中发生的异常 */ var RequestError = (function () { function RequestError(type, message) { Error.call(this, message); this.type = type; this.message = message; } RequestError.prototype = new Error(); RequestError.prototype.constructor = RequestError; return RequestError; })(); function request(options) { if (typeof options !== 'object') { var message = '请求传参应为 object 类型，但实际传了 ' + (typeof options) + ' 类型'; throw new RequestError(constants.ERR_INVALID_PARAMS, message); } var requireLogin = options.login; var success = options.success || noop; var fail = options.fail || noop; var complete = options.complete || noop; var originHeader = options.header || {}; // 成功回调 var callSuccess = function () { success.apply(null, arguments); complete.apply(null, arguments); }; // 失败回调 var callFail = function (error) { fail.call(null, error); complete.call(null, error); }; // 是否已经进行过重试 var hasRetried = false; if (requireLogin) { doRequestWithLogin(); } else { doRequest(); } // 登录后再请求 function doRequestWithLogin() { loginLib.login({ success: doRequest, fail: callFail }); } // 实际进行请求的方法 function doRequest() { var authHeader = buildAuthHeader(Session.get()); wx.request(utils.extend({}, options, { header: utils.extend({}, originHeader, authHeader), success: function (response) { var data = response.data; // 如果响应的数据里面包含 SDK Magic ID，表示被服务端 SDK 处理过，此时一定包含登录态失败的信息 if (data && data[constants.WX_SESSION_MAGIC_ID]) { // 清除登录态 Session.clear(); var error, message; if (data.error === constants.ERR_INVALID_SESSION) { // 如果是登录态无效，并且还没重试过，会尝试登录后刷新凭据重新请求 if (!hasRetried) { hasRetried = true; doRequestWithLogin(); return; } message = '登录态已过期'; error = new RequestError(data.error, message); } else { message = '鉴权服务器检查登录态发生错误(' + (data.error || 'OTHER') + ')：' + (data.message || '未知错误'); error = new RequestError(constants.ERR_CHECK_LOGIN_FAILED, message); } callFail(error); return; } callSuccess.apply(null, arguments); }, fail: callFail, complete: noop, })); }; }; module.exports = { RequestError: RequestError, request: request, };
-session.js
var constants = require('./constants'); var SESSION_KEY = 'weapp_session_' + constants.WX_SESSION_MAGIC_ID; var Session = { get: function () { return wx.getStorageSync(SESSION_KEY) || null; }, set: function (session) { wx.setStorageSync(SESSION_KEY, session); }, clear: function () { wx.removeStorageSync(SESSION_KEY); }, }; module.exports = Session;
-utils.js
/** * 拓展对象 */ exports.extend = function extend(target) { var sources = Array.prototype.slice.call(arguments, 1); for (var i = 0; i < sources.length; i += 1) { var source = sources[i]; for (var key in source) { if (source.hasOwnProperty(key)) { target[key] = source[key]; } } } return target; };
-wxTunnel.js
/* istanbul ignore next */ const noop = () => void(0); let onOpen, onClose, onMessage, onError; /* istanbul ignore next */ function listen(listener) { if (listener) { onOpen = listener.onOpen; onClose = listener.onClose; onMessage = listener.onMessage; onError = listener.onError; } else { onOpen = noop; onClose = noop; onMessage = noop; onError = noop; } } /* istanbul ignore next */ function bind() { wx.onSocketOpen(result => onOpen(result)); wx.onSocketClose(result => onClose(result)); wx.onSocketMessage(result => onMessage(result)); wx.onSocketError(error => onError(error)); } listen(null); bind(); module.exports = { listen };
1.2、.bower.json
{ "name": "qcloud-weapp-client-sdk", "description": "QCloud 微信小程序客户端 SDK", "main": "index.js", "authors": [ "Tencent Cloud" ], "license": "MIT", "keywords": [ "qcloud", "weapp", "wechat", "sdk", "client", "auth", "websocket" ], "homepage": "https://github.com/tencentyun/weapp-client-sdk", "ignore": [ "**/.*", "node_modules", "bower_components", "test", "tests", "typings.json", "jsconfig.json", "package.json", ".npmignore", ".travis.yml", ".gitignore" ], "version": "0.8.2", "_release": "0.8.2", "_resolution": { "type": "version", "tag": "v0.8.2", "commit": "0944545afe0b6bc4aec8c39e8437dbe95a07a8d9" }, "_source": "https://github.com/tencentyun/weapp-client-sdk.git", "_target": "*", "_originalSource": "qcloud-weapp-client-sdk" }
1.3、LICENSE
1.4、README.md
# 微信小程序客户端腾讯云增强 SDK [](https://travis-ci.org/tencentyun/wafer-client-sdk) [](https://coveralls.io/github/tencentyun/wafer-client-sdk?branch=master) [](LICENSE) 本 项目是 [Wafer](https://github.com/tencentyun/wafer-solution) 的组成部分，为小程序客户端开发提供 SDK 支持会话服务和信道服务。 ## SDK 获取与安装 解决方案[客户端 Demo](https://github.com/tencentyun/wafer-client-demo) 已经集成并使用最新版的 SDK，需要快速了解的可以从 Demo 开始。 如果需要单独开始，本 SDK 已经发布为 bower 模块，可以直接安装到小程序目录中。 ```sh npm install -g bower bower install qcloud-weapp-client-sdk ``` 安装之后，就可以使用 `require` 引用 SDK 模块： ```js var qcloud = require('./bower_components/qcloud-weapp-client-sdk/index.js'); ``` ## 会话服务 [会话服务](https://github.com/tencentyun/wafer-solution/wiki/%E4%BC%9A%E8%AF%9D%E6%9C%8D%E5%8A%A1)让小程序拥有会话管理能力。 ### 登录 登录可以在小程序和服务器之间建立会话，服务器由此可以获取到用户的标识和信息。 ```js var qcloud = require('./bower_components/qcloud-weapp-client-sdk/index.js'); // 设置登录地址 qcloud.setLoginUrl('https://199447.qcloud.la/login'); qcloud.login({ success: function (userInfo) { console.log('登录成功', userInfo); }, fail: function (err) { console.log('登录失败', err); } }); ``` 本 SDK 需要配合云端 SDK 才能提供完整会话服务。通过 [setLoginUrl](#setLoginUrl) 设置登录地址，云服务器在该地址上使用云端 SDK 处理登录请求。 > `setLoginUrl` 方法设置登录地址之后会一直有效，因此你可以在微信小程序启动时设置。 登录成功后，可以获取到当前微信用户的基本信息。 ### 请求 如果希望小程序的网络请求包含会话，登录之后使用 [request](#request) 方法进行网络请求即可。 ```js qcloud.request({ url: 'http://199447.qcloud.la/user', success: function (response) { console.log(response); }, fail: function (err) { console.log(err); } }); ``` 如果调用 `request` 之前还没有登录，则请求不会带有会话。`request` 方法也支持 `login` 参数支持在请求之前自动登录。 ```js // 使用 login 参数之前，需要设置登录地址 qcloud.setLoginUrl('https://199447.qcloud.la/login'); qcloud.request({ login: true, url: 'http://199447.qcloud.la/user', success: function (response) { console.log(response); }, fail: function (err) { console.log(err); } }); ``` 关于会话服务详细技术说明，请参考 [Wiki](https://github.com/tencentyun/wafer-solution/wiki/%E4%BC%9A%E8%AF%9D%E6%9C%8D%E5%8A%A1)。 ## 信道服务 [信道服务](https://github.com/tencentyun/wafer-solution/wiki/%E4%BF%A1%E9%81%93%E6%9C%8D%E5%8A%A1)小程序支持利用腾讯云的信道资源使用 WebSocket 服务。 ```js // 创建信道，需要给定后台服务地址 var tunnel = this.tunnel = new qcloud.Tunnel('https://199447.qcloud.la/tunnel'); // 监听信道内置消息，包括 connect/close/reconnecting/reconnect/error tunnel.on('connect', () => console.log('WebSocket 信道已连接')); tunnel.on('close', () => console.log('WebSocket 信道已断开')); tunnel.on('reconnecting', () => console.log('WebSocket 信道正在重连...')); tunnel.on('reconnect', () => console.log('WebSocket 信道重连成功')); tunnel.on('error', error => console.error('信道发生错误：', error)); // 监听自定义消息（服务器进行推送） tunnel.on('speak', speak => console.log('收到 speak 消息：', speak)); // 打开信道 tunnel.open(); // 发送消息 tunnel.emit('speak', { word: "hello", who: { nickName: "techird" }}); // 关闭信道 tunnel.close(); ``` 信道服务同样需要业务服务器配合云端 SDK 支持，构造信道实例的时候需要提供业务服务器提供的信道服务地址。通过监听信道消息以及自定义消息来通过信道实现业务。 关于信道使用的更完整实例，建议参考客户端 Demo 中的[三木聊天室应用源码](https://github.com/tencentyun/wafer-client-demo/blob/master/pages/chat/chat.js)。 关于信道服务详细技术说明，请参考 [Wiki](https://github.com/tencentyun/wafer-solution/wiki/%E4%BF%A1%E9%81%93%E6%9C%8D%E5%8A%A1)。 ## API ### setLoginUrl 设置会话服务登录地址。 #### 语法 ```js qcloud.setLoginUrl(loginUrl); ``` #### 参数 |参数 |类型 |说明 |-------------|---------------|-------------- |loginUrl |string |会话服务登录地址 ### login 登录，建立微信小程序会话。 #### 语法 ```js qcloud.login(options); ``` #### 参数 |参数 |类型 |说明 |-------------|---------------|-------------- |options |PlainObject |会话服务登录地址 |options.success | () => void | 登录成功的回调 |options.error | (error) => void | 登录失败的回调 ### request 进行带会话的请求。 #### 语法 ```js qcloud.request(options); ``` #### 参数 |参数 |类型 |说明 |-------------|---------------|-------------- |options |PlainObject | 会话服务登录地址 |options.login | bool | 是否自动登录以获取会话，默认为 false |options.url | string | 必填，要请求的地址 |options.header | PlainObject | 请求头设置，不允许设置 Referer |options.method | string | 请求的方法，默认为 GET |options.success | (response) => void | 登录成功的回调。<ul><li>`response.statusCode`：请求返回的状态码</li><li>`response.data`：请求返回的数据</li></ul> |options.error | (error) => void | 登录失败的回调 |options.complete | () => void | 登录完成后回调，无论成功还是失败 ### Tunnel 表示一个信道。由于小程序的限制，同一时间只能有一个打开的信道。 #### constructor ##### 语法 ```js var tunnel = new Tunnel(tunnelUrl); ``` #### 参数 |参数 |类型 |说明 |-------------|---------------|-------------- |tunnelUrl |String | 会话服务登录地址 #### on 监听信道上的事件。信道上事件包括系统事件和服务器推送消息。 ##### 语法 ```js tunnel.on(type, listener); ``` ##### 参数 |参数 |类型 |说明 |-------------|---------------|-------------- |type |string | 监听的事件类型 |listener |(message?: any) => void | 监听器，具体类型的事件发生时调用监听器。如果是消息，则会有消息内容。 ##### 事件 |事件 |说明 |-------------|------------------------------- |connect |信道连接成功后回调 |close |信道关闭后回调 |reconnecting |信道发生重连时回调 |reconnected |信道重连成功后回调 |error |信道发生错误后回调 |[message] |信道服务器推送过来的消息类型，如果消息类型和上面内置的时间类型冲突，需要在监听的时候在消息类型前加 `@` |* |监听所有事件和消息，监听器第一个参数接收到时间或消息类型 #### open 打开信道，建立连接。由于小程序的限制，同一时间只能有一个打开的信道。 ##### 语法 ```js tunnel.open(); ``` #### emit 向信道推送消息。 ##### 语法 ```js tunnel.emit(type, content); ``` ##### 参数 |参数 |类型 |说明 |-------------|---------------|-------------- |type |string | 要推送的消息的类型 |content |any | 要推送的消息的内容 #### close 关闭信道 ##### 语法 ```js tunnel.close(); ``` ## LICENSE [MIT](LICENSE)
1.5、bower.json
{ "name": "qcloud-weapp-client-sdk", "description": "QCloud 微信小程序客户端 SDK", "main": "index.js", "authors": [ "Tencent Cloud" ], "license": "MIT", "keywords": [ "qcloud", "weapp", "wechat", "sdk", "client", "auth", "websocket" ], "homepage": "", "ignore": [ "**/.*", "node_modules", "bower_components", "test", "tests", "typings.json", "jsconfig.json", "package.json", ".npmignore", ".travis.yml", ".gitignore" ] }
1.6、index.js
var constants = require('./lib/constants'); var login = require('./lib/login'); var Session = require('./lib/session'); var request = require('./lib/request'); var Tunnel = require('./lib/tunnel'); var exports = module.exports = { login: login.login, setLoginUrl: login.setLoginUrl, LoginError: login.LoginError, clearSession: Session.clear, request: request.request, RequestError: request.RequestError, Tunnel: Tunnel, }; // 导出错误类型码 Object.keys(constants).forEach(function (key) { if (key.indexOf('ERR_') === 0) { exports[key] = constants[key]; } });
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作者：ylbtech 出处：http://ylbtech.cnblogs.com/ 本文版权归作者和博客园共有，欢迎转载，但未经作者同意必须保留此段声明，且在文章页面明显位置给出原文连接，否则保留追究法律责任的权利。 |