3、监控脚本是否卡在某界面不动，发现此情况重启脚本

function Observer() {
    function unique(arr) {
        let newArr = [arr[0]];
        for (let i = 1; i < arr.length; i++) {
            let flag = false;
            for (var j = 0; j < newArr.length; j++) {
                if (arr[i] == newArr[j]) {
                    flag = true;
                    break;
                }
            }
            if (!flag) {
                newArr.push(arr[i]);
            }
        }
        return newArr;
    }
    currentActis = new Array();
    for (let c = 0; c < 100; c++) {
        sleep(500);
        currentActis[c] = currentActivity();
    }
    ac = unique(currentActis);
    if (ac.length == 1) {
        return false
    }
    return true
}

// 》》》》》》》》》》》》》》》》》》》 START
work_thread = threads.start(function () {
    Main();
});


observer_thread = threads.start(function () {
    while (true) {
        sleep(5000);
        if (!Observer()) {
            work_thread.interrupt();
            work_thread = threads.start(function () {
                console.setPosition(device.width / 2, device.height / 1.5);
                console.show();
                console.warn("Main线程在5秒后重启！");
                sleep(5000);
                console.hide();
                Main();
            });
        }
    }
});