JSSDK是cdn引入的，具体代码如下，父类里面定义，子类调用

    async __initJsSdk(jsApiList:Array<string>,wxReady?:()=>void){
      if(wx){
            const config = await fetchJssdkConfig({h5url:window.location.href}).then(res=>{
                let {
                    data,
                    sc
                } = res.data;
                if(sc==='0') return data;
                return undefined;
            });
            if(!config) return window.Toast.info('fetch jssdk config fail');
            wx.config({
                beta: true,
                debug: true,
                appId: config.appId, // 必填，企业微信的corpID
                timestamp: config.timestamp, // 必填，生成签名的时间戳
                nonceStr: config.nonceStr, // 必填，生成签名的随机串
                signature: config.signature,
                jsApiList
            })
            wx.ready(()=>{
                wxReady&&wxReady();
            })
            wx.error(function(res:any){
                console.log(`jssdk`,res)
            });  
        }
    }
    async __initJsSdkAgent(jsApiAgentList:Array<string>,agentSuccess?:()=>void){
        if(wx){
            const agentConfig = await fetchJssdkAgentConfig({h5url:window.location.href}).then(res=>{
                let {
                    data,
                    sc
                } = res.data;
                if(sc==='0') return data;
                return undefined;
            });
            if(!agentConfig) return window.Toast.info('fetch jssdkAgent config fail');
            wx.agentConfig({
                corpid:agentConfig.appId,
                agentid:agentConfig.agentId,
                timestamp:agentConfig.timestamp,
                nonceStr: agentConfig.nonceStr, // 必填，生成签名的随机串
                signature: agentConfig.signature,
                jsApiList: jsApiAgentList,
                debug: true,
                success(res:any){
                    console.log(res)
                    agentSuccess&&agentSuccess();
                },
                fail(res:any) {
                    if(res.errMsg.indexOf('function not exist') > -1){
                        window.Toast.info('企业微信版本过低请升级')
                    }
                }
            });
        }
    }
    __jsSdkInvoke(type:string,options:{[key:string]:any},callback:(res:any)=>void){
        if(wx){
            wx.invoke(type, options, callback);
        }
    }
  //调用
  super.__initJsSdk(['invoke','agentConfig'],()=>{
            super.__initJsSdkAgent(['getCurExternalContact'],()=>{
                super.__jsSdkInvoke('getCurExternalContact',{}, (res)=>{
                    console.log(res)
                    // if(res.err_msg === "getCurExternalContact:ok"){
                    //     window.Toast.info(res.userId)
                    // }else {
                    //     window.Toast.info(JSON.stringify(res))
                    // }
                })
            })
        });