    id: 3,
            info: "来自 WebView 的消息"
        }, 500)
    })

    document.getElementById('test4').addEventListener('click', function(){
        sendNativeMsg('nativeError', {
            id: 3,
            info: "来自 WebView 的消息"
        }, 500)
    })

    function sendNativeMsg(cmd, data, timeout) {
        window.EmoBridge.send({
            cmd: cmd,
            data: data,
            timeout: timeout,
            onResponse: function(data){
                var text = docume