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  • 微信小程序开发 --- 小白之路 --- 心得

    1.前言

    今天 ,发现我的饭卡不见了。。。。悲催 ,看了一下学校的微信小程序,查了下我这饭卡的流水记录,嗯。。。最后出现的地方在洗澡房。。。

    好吧,扯远了,虽然没找到,可是突发奇想 ,小程序挺方便的,我能不能做一个?

    。。。。。

    事实上,充钱就行!!!

    百度搜了一下关于微信小程序的开发教程。。。显示的基本上是广告,都是小程序外包。。。我有钱还自己开发?笑话!!!贫穷使我自力更生!!!

    。。。。。

    直接去博客找资料,总有那么几个前辈把路给我们铺好了,只是有些是桥,有些是泥巴路,喀喀喀,总比没有好。

    这位前辈 详细介绍了微信小程序能干什么  ,博文原址  :  https://www.cnblogs.com/jingwhale/p/11255805.html

    。。。。反正一开始我看的是一脸懵逼。。。。

    2.话不多说,看看效果

        

    我做的小程序名字叫岑惜  

    跳转进入登录页

     好了。。。其他就不展示了 ,其实想要做这个小程序,其实蛮简单的 ,说到底还是需要成本的,因为访问外链的话 ,是需要去微信公众平台 认证域名 ,还有要有 https协议的域名才可以访问 。。。这就很蛋疼了。。。

    算一下帐 ,

    (1)需要认证https ,则必须 有SSL证书,需要买的,个人可以免费一年 ,企业的则需要几千块钱,记得以前看的是4千块钱左右,具体看官网报价,

    (2)需要认证ssl证书,那么需要有一个已经备案的域名才可以,域名10到80块不等 ;

    (3)想要绑定域名并且成功备案,那么最少需要租一年服务器,有学生优惠还好,需要120左右 ,如果没有学生优惠,那就贵了,一年服务器需要1千到3千不等,
    算了一下,如果不是学生大概需要六千多一年的运营成本,如果是学生,需要200左右, 如果想要接入支付入口,则还需要支付300块钱的手续费。。。。。

    好吧,我觉得,如果不是要商用,没必要自己开一个可以发布的小程序,太贵了,完全可以使用开发者模式,自娱自乐就够了,当前,有钱人可以当我没说!!!

     3.开发者权限认证

    需要登录微信公众号平台,网址  :  https://mp.weixin.qq.com/

    需要先注册

     

    填写信息,跟着一步一步来就可以了 ,邮箱可以使用qq邮箱

     注册好了之后,返回主页,可以 用微信扫描登录

    登陆后的页面,进入主页,

    菜单栏找到设置,填写信息

    记住你的小程序id ,这很重要 ,在开发者工具里面需要认证的

     现在去获取开发者权限

    菜单找到   开发

     设置开发者id ,上传密码、服务器域名信息 ,

    基本的设置差不多了,还有其他设置自己琢磨,我就不演示了,

    3.下载开发者工具

    网址 : https://developers.weixin.qq.com/miniprogram/dev/devtools/download.html

    选择需要的系统版本,建议下载稳定版

    下载后安装,傻瓜式一键安装 ,安装完开启,直接就是微信扫码界面了

     

    4.新建小程序工程

     

     信息填写好,点击新建,然后等待加载开发页面 ,看起来有点像浏览器,其实更像android开发工具

     我应该做个目录说明

     有个 login和chi文件夹 ,那是我自己建的页面,

    每个页面的文件应该都放在一个文件夹里,这样不会乱

    ,就像这样

    5.新建页面

     那么问题来了 ,怎么创建新页面?

    在pages文件夹 右键,新建文件夹 ,

     我新建了一个叫 newPage的文件夹

     右键这文件夹,选择新建 Page

     填写名字,最好是与文件夹名字一致,回车确定

    6.修改小程序标题

    需要去全局变量才能修改标题  ,所有的页面都写着pages里面,一般会自动添加,但是不会自动删除,需要手动修改,不然报错无法运行

     7.跳到下一页

    如何进入下一页?需要 在js文件控制页面跳转 ,使用 vue.js一样的语法 ,控制 页面组件

    我这里做一个 点击 文字 “欢迎进入岑惜随笔” 就会进入下一页面  【当然,也可以做一个计时器 自动跳转页面】

    先看看 js怎么写 【这是默认的初始页,对应的页面名是 index】

    自定义做了个方法  toLogin 

     现在需要去wxml文件绑定触发组件

    修改文件后,点击保存

     打开手机微信后 ,点击真机测试 

     

    手机授权后,等一会手机就会自动弹出小程序运行啦 ,啦啦啦啦,也可以使用开发工具的小程序页面展示窗口操作,其实那就是一个手机模拟器

    8.跳回指定的上一页

    在微信默认方法  onUnload 设置

    9.如何使用外链访问呢?

    很简单

    在wxml文件一句话即可 ,那是个浏览器容器 ,缺点是 会将整个屏幕占有,无法设置窗口大小

     网址我写在 js文件里

     访问 效果

     

    10.从外链主动回到小程序

    那么,如果想要从外链主动回到小程序怎么实现呢?

    微信已经做好了很多由js调用微信的接口了,这个浏览器容器其实类似于标签 《iframe》 ,可以在外链调用js脚本接口回到小程序,

    但是需要加载微信做好的js脚本

    可以使用《script》网址加载,

     <script src="https://res.wx.qq.com/open/js/jweixin-1.3.2.js"></script>

    也可以写在本地加载

    完整的js源码

    !function (e, n) {
        "function" == typeof define && (define.amd || define.cmd) ? define(function () {
            return n(e)
        }) : n(e, !0)
    }(this, function (e, n) {
        function i(n, i, t) {
            e.WeixinJSBridge ? WeixinJSBridge.invoke(n, o(i), function (e) {
                c(n, e, t)
            }) : u(n, t)
        }
    
        function t(n, i, t) {
            e.WeixinJSBridge ? WeixinJSBridge.on(n, function (e) {
                t && t.trigger && t.trigger(e), c(n, e, i)
            }) : t ? u(n, t) : u(n, i)
        }
    
        function o(e) {
            return e = e || {}, e.appId = C.appId, e.verifyAppId = C.appId, e.verifySignType = "sha1", e.verifyTimestamp = C.timestamp + "", e.verifyNonceStr = C.nonceStr, e.verifySignature = C.signature, e
        }
    
        function r(e) {
            return {
                timeStamp: e.timestamp + "",
                nonceStr: e.nonceStr,
                package: e.package,
                paySign: e.paySign,
                signType: e.signType || "SHA1"
            }
        }
    
        function a(e) {
            return e.postalCode = e.addressPostalCode, delete e.addressPostalCode, e.provinceName = e.proviceFirstStageName, delete e.proviceFirstStageName, e.cityName = e.addressCitySecondStageName, delete e.addressCitySecondStageName, e.countryName = e.addressCountiesThirdStageName, delete e.addressCountiesThirdStageName, e.detailInfo = e.addressDetailInfo, delete e.addressDetailInfo, e
        }
    
        function c(e, n, i) {
            "openEnterpriseChat" == e && (n.errCode = n.err_code), delete n.err_code, delete n.err_desc, delete n.err_detail;
            var t = n.errMsg;
            t || (t = n.err_msg, delete n.err_msg, t = s(e, t), n.errMsg = t), (i = i || {})._complete && (i._complete(n), delete i._complete), t = n.errMsg || "", C.debug && !i.isInnerInvoke && alert(JSON.stringify(n));
            var o = t.indexOf(":");
            switch (t.substring(o + 1)) {
                case"ok":
                    i.success && i.success(n);
                    break;
                case"cancel":
                    i.cancel && i.cancel(n);
                    break;
                default:
                    i.fail && i.fail(n)
            }
            i.complete && i.complete(n)
        }
    
        function s(e, n) {
            var i = e, t = v[i];
            t && (i = t);
            var o = "ok";
            if (n) {
                var r = n.indexOf(":");
                "confirm" == (o = n.substring(r + 1)) && (o = "ok"), "failed" == o && (o = "fail"), -1 != o.indexOf("failed_") && (o = o.substring(7)), -1 != o.indexOf("fail_") && (o = o.substring(5)), "access denied" != (o = (o = o.replace(/_/g, " ")).toLowerCase()) && "no permission to execute" != o || (o = "permission denied"), "config" == i && "function not exist" == o && (o = "ok"), "" == o && (o = "fail")
            }
            return n = i + ":" + o
        }
    
        function d(e) {
            if (e) {
                for (var n = 0, i = e.length; n < i; ++n) {
                    var t = e[n], o = h[t];
                    o && (e[n] = o)
                }
                return e
            }
        }
    
        function u(e, n) {
            if (!(!C.debug || n && n.isInnerInvoke)) {
                var i = v[e];
                i && (e = i), n && n._complete && delete n._complete, console.log('"' + e + '",', n || "")
            }
        }
    
        function l(e) {
            if (!(w || T || C.debug || x < "6.0.2" || V.systemType < 0)) {
                var n = new Image;
                V.appId = C.appId, V.initTime = A.initEndTime - A.initStartTime, V.preVerifyTime = A.preVerifyEndTime - A.preVerifyStartTime, N.getNetworkType({
                    isInnerInvoke: !0,
                    success: function (e) {
                        V.networkType = e.networkType;
                        var i = "https://open.weixin.qq.com/sdk/report?v=" + V.version + "&o=" + V.isPreVerifyOk + "&s=" + V.systemType + "&c=" + V.clientVersion + "&a=" + V.appId + "&n=" + V.networkType + "&i=" + V.initTime + "&p=" + V.preVerifyTime + "&u=" + V.url;
                        n.src = i
                    }
                })
            }
        }
    
        function p() {
            return (new Date).getTime()
        }
    
        function f(n) {
            k && (e.WeixinJSBridge ? n() : I.addEventListener && I.addEventListener("WeixinJSBridgeReady", n, !1))
        }
    
        function m() {
            N.invoke || (N.invoke = function (n, i, t) {
                e.WeixinJSBridge && WeixinJSBridge.invoke(n, o(i), t)
            }, N.on = function (n, i) {
                e.WeixinJSBridge && WeixinJSBridge.on(n, i)
            })
        }
    
        function g(e) {
            if ("string" == typeof e && e.length > 0) {
                var n = e.split("?")[0], i = e.split("?")[1];
                return n += ".html", void 0 !== i ? n + "?" + i : n
            }
        }
    
        if (!e.jWeixin) {
            var h = {
                    config: "preVerifyJSAPI",
                    onMenuShareTimeline: "menu:share:timeline",
                    onMenuShareAppMessage: "menu:share:appmessage",
                    onMenuShareQQ: "menu:share:qq",
                    onMenuShareWeibo: "menu:share:weiboApp",
                    onMenuShareQZone: "menu:share:QZone",
                    previewImage: "imagePreview",
                    getLocation: "geoLocation",
                    openProductSpecificView: "openProductViewWithPid",
                    addCard: "batchAddCard",
                    openCard: "batchViewCard",
                    chooseWXPay: "getBrandWCPayRequest",
                    openEnterpriseRedPacket: "getRecevieBizHongBaoRequest",
                    startSearchBeacons: "startMonitoringBeacons",
                    stopSearchBeacons: "stopMonitoringBeacons",
                    onSearchBeacons: "onBeaconsInRange",
                    consumeAndShareCard: "consumedShareCard",
                    openAddress: "editAddress"
                }, v = function () {
                    var e = {};
                    for (var n in h) e[h[n]] = n;
                    return e
                }(), I = e.document, S = I.title, y = navigator.userAgent.toLowerCase(), _ = navigator.platform.toLowerCase(),
                w = !(!_.match("mac") && !_.match("win")), T = -1 != y.indexOf("wxdebugger"),
                k = -1 != y.indexOf("micromessenger"), M = -1 != y.indexOf("android"),
                P = -1 != y.indexOf("iphone") || -1 != y.indexOf("ipad"), x = function () {
                    var e = y.match(/micromessenger/(d+.d+.d+)/) || y.match(/micromessenger/(d+.d+)/);
                    return e ? e[1] : ""
                }(), A = {initStartTime: p(), initEndTime: 0, preVerifyStartTime: 0, preVerifyEndTime: 0}, V = {
                    version: 1,
                    appId: "",
                    initTime: 0,
                    preVerifyTime: 0,
                    networkType: "",
                    isPreVerifyOk: 1,
                    systemType: P ? 1 : M ? 2 : -1,
                    clientVersion: x,
                    url: encodeURIComponent(location.href)
                }, C = {}, L = {_completes: []}, B = {state: 0, data: {}};
            f(function () {
                A.initEndTime = p()
            });
            var O = !1, E = [], N = {
                config: function (e) {
                    C = e, u("config", e);
                    var n = !1 !== C.check;
                    f(function () {
                        if (n) i(h.config, {verifyJsApiList: d(C.jsApiList)}, function () {
                            L._complete = function (e) {
                                A.preVerifyEndTime = p(), B.state = 1, B.data = e
                            }, L.success = function (e) {
                                V.isPreVerifyOk = 0
                            }, L.fail = function (e) {
                                L._fail ? L._fail(e) : B.state = -1
                            };
                            var e = L._completes;
                            return e.push(function () {
                                l()
                            }), L.complete = function (n) {
                                for (var i = 0, t = e.length; i < t; ++i) e[i]();
                                L._completes = []
                            }, L
                        }()), A.preVerifyStartTime = p(); else {
                            B.state = 1;
                            for (var e = L._completes, t = 0, o = e.length; t < o; ++t) e[t]();
                            L._completes = []
                        }
                    }), m()
                }, ready: function (e) {
                    0 != B.state ? e() : (L._completes.push(e), !k && C.debug && e())
                }, error: function (e) {
                    x < "6.0.2" || (-1 == B.state ? e(B.data) : L._fail = e)
                }, checkJsApi: function (e) {
                    var n = function (e) {
                        var n = e.checkResult;
                        for (var i in n) {
                            var t = v[i];
                            t && (n[t] = n[i], delete n[i])
                        }
                        return e
                    };
                    i("checkJsApi", {jsApiList: d(e.jsApiList)}, (e._complete = function (e) {
                        if (M) {
                            var i = e.checkResult;
                            i && (e.checkResult = JSON.parse(i))
                        }
                        e = n(e)
                    }, e))
                }, onMenuShareTimeline: function (e) {
                    t(h.onMenuShareTimeline, {
                        complete: function () {
                            i("shareTimeline", {
                                title: e.title || S,
                                desc: e.title || S,
                                img_url: e.imgUrl || "",
                                link: e.link || location.href,
                                type: e.type || "link",
                                data_url: e.dataUrl || ""
                            }, e)
                        }
                    }, e)
                }, onMenuShareAppMessage: function (e) {
                    t(h.onMenuShareAppMessage, {
                        complete: function (n) {
                            "favorite" === n.scene ? i("sendAppMessage", {
                                title: e.title || S,
                                desc: e.desc || "",
                                link: e.link || location.href,
                                img_url: e.imgUrl || "",
                                type: e.type || "link",
                                data_url: e.dataUrl || ""
                            }) : i("sendAppMessage", {
                                title: e.title || S,
                                desc: e.desc || "",
                                link: e.link || location.href,
                                img_url: e.imgUrl || "",
                                type: e.type || "link",
                                data_url: e.dataUrl || ""
                            }, e)
                        }
                    }, e)
                }, onMenuShareQQ: function (e) {
                    t(h.onMenuShareQQ, {
                        complete: function () {
                            i("shareQQ", {
                                title: e.title || S,
                                desc: e.desc || "",
                                img_url: e.imgUrl || "",
                                link: e.link || location.href
                            }, e)
                        }
                    }, e)
                }, onMenuShareWeibo: function (e) {
                    t(h.onMenuShareWeibo, {
                        complete: function () {
                            i("shareWeiboApp", {
                                title: e.title || S,
                                desc: e.desc || "",
                                img_url: e.imgUrl || "",
                                link: e.link || location.href
                            }, e)
                        }
                    }, e)
                }, onMenuShareQZone: function (e) {
                    t(h.onMenuShareQZone, {
                        complete: function () {
                            i("shareQZone", {
                                title: e.title || S,
                                desc: e.desc || "",
                                img_url: e.imgUrl || "",
                                link: e.link || location.href
                            }, e)
                        }
                    }, e)
                }, startRecord: function (e) {
                    i("startRecord", {}, e)
                }, stopRecord: function (e) {
                    i("stopRecord", {}, e)
                }, onVoiceRecordEnd: function (e) {
                    t("onVoiceRecordEnd", e)
                }, playVoice: function (e) {
                    i("playVoice", {localId: e.localId}, e)
                }, pauseVoice: function (e) {
                    i("pauseVoice", {localId: e.localId}, e)
                }, stopVoice: function (e) {
                    i("stopVoice", {localId: e.localId}, e)
                }, onVoicePlayEnd: function (e) {
                    t("onVoicePlayEnd", e)
                }, uploadVoice: function (e) {
                    i("uploadVoice", {localId: e.localId, isShowProgressTips: 0 == e.isShowProgressTips ? 0 : 1}, e)
                }, downloadVoice: function (e) {
                    i("downloadVoice", {serverId: e.serverId, isShowProgressTips: 0 == e.isShowProgressTips ? 0 : 1}, e)
                }, translateVoice: function (e) {
                    i("translateVoice", {localId: e.localId, isShowProgressTips: 0 == e.isShowProgressTips ? 0 : 1}, e)
                }, chooseImage: function (e) {
                    i("chooseImage", {
                        scene: "1|2",
                        count: e.count || 9,
                        sizeType: e.sizeType || ["original", "compressed"],
                        sourceType: e.sourceType || ["album", "camera"]
                    }, (e._complete = function (e) {
                        if (M) {
                            var n = e.localIds;
                            try {
                                n && (e.localIds = JSON.parse(n))
                            } catch (e) {
                            }
                        }
                    }, e))
                }, getLocation: function (e) {
                }, previewImage: function (e) {
                    i(h.previewImage, {current: e.current, urls: e.urls}, e)
                }, uploadImage: function (e) {
                    i("uploadImage", {localId: e.localId, isShowProgressTips: 0 == e.isShowProgressTips ? 0 : 1}, e)
                }, downloadImage: function (e) {
                    i("downloadImage", {serverId: e.serverId, isShowProgressTips: 0 == e.isShowProgressTips ? 0 : 1}, e)
                }, getLocalImgData: function (e) {
                    !1 === O ? (O = !0, i("getLocalImgData", {localId: e.localId}, (e._complete = function (e) {
                        if (O = !1, E.length > 0) {
                            var n = E.shift();
                            wx.getLocalImgData(n)
                        }
                    }, e))) : E.push(e)
                }, getNetworkType: function (e) {
                    var n = function (e) {
                        var n = e.errMsg;
                        e.errMsg = "getNetworkType:ok";
                        var i = e.subtype;
                        if (delete e.subtype, i) e.networkType = i; else {
                            var t = n.indexOf(":"), o = n.substring(t + 1);
                            switch (o) {
                                case"wifi":
                                case"edge":
                                case"wwan":
                                    e.networkType = o;
                                    break;
                                default:
                                    e.errMsg = "getNetworkType:fail"
                            }
                        }
                        return e
                    };
                    i("getNetworkType", {}, (e._complete = function (e) {
                        e = n(e)
                    }, e))
                }, openLocation: function (e) {
                    i("openLocation", {
                        latitude: e.latitude,
                        longitude: e.longitude,
                        name: e.name || "",
                        address: e.address || "",
                        scale: e.scale || 28,
                        infoUrl: e.infoUrl || ""
                    }, e)
                }, getLocation: function (e) {
                    e = e || {}, i(h.getLocation, {type: e.type || "wgs84"}, (e._complete = function (e) {
                        delete e.type
                    }, e))
                }, hideOptionMenu: function (e) {
                    i("hideOptionMenu", {}, e)
                }, showOptionMenu: function (e) {
                    i("showOptionMenu", {}, e)
                }, closeWindow: function (e) {
                    i("closeWindow", {}, e = e || {})
                }, hideMenuItems: function (e) {
                    i("hideMenuItems", {menuList: e.menuList}, e)
                }, showMenuItems: function (e) {
                    i("showMenuItems", {menuList: e.menuList}, e)
                }, hideAllNonBaseMenuItem: function (e) {
                    i("hideAllNonBaseMenuItem", {}, e)
                }, showAllNonBaseMenuItem: function (e) {
                    i("showAllNonBaseMenuItem", {}, e)
                }, scanQRCode: function (e) {
                    i("scanQRCode", {
                        needResult: (e = e || {}).needResult || 0,
                        scanType: e.scanType || ["qrCode", "barCode"]
                    }, (e._complete = function (e) {
                        if (P) {
                            var n = e.resultStr;
                            if (n) {
                                var i = JSON.parse(n);
                                e.resultStr = i && i.scan_code && i.scan_code.scan_result
                            }
                        }
                    }, e))
                }, openAddress: function (e) {
                    i(h.openAddress, {}, (e._complete = function (e) {
                        e = a(e)
                    }, e))
                }, openProductSpecificView: function (e) {
                    i(h.openProductSpecificView, {pid: e.productId, view_type: e.viewType || 0, ext_info: e.extInfo}, e)
                }, addCard: function (e) {
                    for (var n = e.cardList, t = [], o = 0, r = n.length; o < r; ++o) {
                        var a = n[o], c = {card_id: a.cardId, card_ext: a.cardExt};
                        t.push(c)
                    }
                    i(h.addCard, {card_list: t}, (e._complete = function (e) {
                        var n = e.card_list;
                        if (n) {
                            for (var i = 0, t = (n = JSON.parse(n)).length; i < t; ++i) {
                                var o = n[i];
                                o.cardId = o.card_id, o.cardExt = o.card_ext, o.isSuccess = !!o.is_succ, delete o.card_id, delete o.card_ext, delete o.is_succ
                            }
                            e.cardList = n, delete e.card_list
                        }
                    }, e))
                }, chooseCard: function (e) {
                    i("chooseCard", {
                        app_id: C.appId,
                        location_id: e.shopId || "",
                        sign_type: e.signType || "SHA1",
                        card_id: e.cardId || "",
                        card_type: e.cardType || "",
                        card_sign: e.cardSign,
                        time_stamp: e.timestamp + "",
                        nonce_str: e.nonceStr
                    }, (e._complete = function (e) {
                        e.cardList = e.choose_card_info, delete e.choose_card_info
                    }, e))
                }, openCard: function (e) {
                    for (var n = e.cardList, t = [], o = 0, r = n.length; o < r; ++o) {
                        var a = n[o], c = {card_id: a.cardId, code: a.code};
                        t.push(c)
                    }
                    i(h.openCard, {card_list: t}, e)
                }, consumeAndShareCard: function (e) {
                    i(h.consumeAndShareCard, {consumedCardId: e.cardId, consumedCode: e.code}, e)
                }, chooseWXPay: function (e) {
                    i(h.chooseWXPay, r(e), e)
                }, openEnterpriseRedPacket: function (e) {
                    i(h.openEnterpriseRedPacket, r(e), e)
                }, startSearchBeacons: function (e) {
                    i(h.startSearchBeacons, {ticket: e.ticket}, e)
                }, stopSearchBeacons: function (e) {
                    i(h.stopSearchBeacons, {}, e)
                }, onSearchBeacons: function (e) {
                    t(h.onSearchBeacons, e)
                }, openEnterpriseChat: function (e) {
                    i("openEnterpriseChat", {useridlist: e.userIds, chatname: e.groupName}, e)
                }, launchMiniProgram: function (e) {
                    i("launchMiniProgram", {targetAppId: e.targetAppId, path: g(e.path), envVersion: e.envVersion}, e)
                }, miniProgram: {
                    navigateBack: function (e) {
                        e = e || {}, f(function () {
                            i("invokeMiniProgramAPI", {name: "navigateBack", arg: {delta: e.delta || 1}}, e)
                        })
                    }, navigateTo: function (e) {
                        f(function () {
                            i("invokeMiniProgramAPI", {name: "navigateTo", arg: {url: e.url}}, e)
                        })
                    }, redirectTo: function (e) {
                        f(function () {
                            i("invokeMiniProgramAPI", {name: "redirectTo", arg: {url: e.url}}, e)
                        })
                    }, switchTab: function (e) {
                        f(function () {
                            i("invokeMiniProgramAPI", {name: "switchTab", arg: {url: e.url}}, e)
                        })
                    }, reLaunch: function (e) {
                        f(function () {
                            i("invokeMiniProgramAPI", {name: "reLaunch", arg: {url: e.url}}, e)
                        })
                    }, postMessage: function (e) {
                        f(function () {
                            i("invokeMiniProgramAPI", {name: "postMessage", arg: e.data || {}}, e)
                        })
                    }, getEnv: function (n) {
                        f(function () {
                            n({miniprogram: "miniprogram" === e.__wxjs_environment})
                        })
                    }
                }
            }, b = 1, R = {};
            return I.addEventListener("error", function (e) {
                if (!M) {
                    var n = e.target, i = n.tagName, t = n.src;
                    if (("IMG" == i || "VIDEO" == i || "AUDIO" == i || "SOURCE" == i) && -1 != t.indexOf("wxlocalresource://")) {
                        e.preventDefault(), e.stopPropagation();
                        var o = n["wx-id"];
                        if (o || (o = b++, n["wx-id"] = o), R[o]) return;
                        R[o] = !0, wx.ready(function () {
                            wx.getLocalImgData({
                                localId: t, success: function (e) {
                                    n.src = e.localData
                                }
                            })
                        })
                    }
                }
            }, !0), I.addEventListener("load", function (e) {
                if (!M) {
                    var n = e.target, i = n.tagName;
                    n.src;
                    if ("IMG" == i || "VIDEO" == i || "AUDIO" == i || "SOURCE" == i) {
                        var t = n["wx-id"];
                        t && (R[t] = !1)
                    }
                }
            }, !0), n && (e.wx = e.jWeixin = N), N
        }
    });
    View Code

    那么问题来了,怎么调用呢?

    新建一个js 文件 ,封装一个方法,【这样有利于做其他逻辑处理】

    那么问题又来了,既然是网页,不仅浏览器可以使用,其他应用也可以使用,那么如何区别是不是微信小程序进来呢?

    这个好办,在进入外链的时候,网址参数加入可以识别的标志或参数,如

     在进入的页面对网址做一个检查,如果包含该字符串,则在cookie标记为由微信小程序进来的

     到了敏感页面。即按历史返回键需要回到小程序的页面时,需要对页面返回键做一个判断操作,

    我之所以这样写,是因为需求是小程序可以在这个页面后退触发返回小程序操作,如果不是小程序【比如浏览器、app内置浏览器等】,则不允许返回操作,防止页面后退才这样写

     因为无法显示视频,动态图我又懒得做,所以就不展示测试页面了

    11.总结

    其实这微信小程序仍然是类似于应用app开发,可以全部使用app原生组件或微信的一套语言开发,用前后端分离模式开发;

    也可以使用浏览器容器,由外链进入网站,形成一个app壳+Web开发的一个模式,好处就是开发简单,内容丰富,同时配合微信提供的接口可以调用手机权限,又不影响浏览器对网站的访问,算是一个引流的作用了!!!

    -------------------------------------------------

    参考博文原址:

    https://zhidao.baidu.com/question/1801861578486509987.html

    https://www.jianshu.com/p/244fcc9de68f

    https://blog.csdn.net/Say_one/article/details/88352599

    https://honker.blog.csdn.net/article/details/105498670

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  • 原文地址:https://www.cnblogs.com/c2g5201314/p/12900470.html
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