if (handleSquirrelEvent()) {
    // squirrel event handled and app will exit in 1000ms, so don't do anything else
}else {
    // 之前的所有代码都放这里
}

function handleSquirrelEvent() {
    if (process.argv.length === 1) {
        return false;
    }
    const ChildProcess = require("child_process");
    const path = require("path");
    const appFolder = path.resolve(process.execPath, "..");
    const rootAtomFolder = path.resolve(appFolder, "..");
    const updateDotExe = path.resolve(path.join(rootAtomFolder, "Update.exe"));
    const exeName = path.basename(process.execPath);

    const spawn = function (command, args) {
        let spawnedProcess, error;

        try {
            spawnedProcess = ChildProcess.spawn(command, args, { detached: true });
        } catch (error) {}

        return spawnedProcess;
    };

    const spawnUpdate = function (args) {
        return spawn(updateDotExe, args);
    };

    const squirrelEvent = process.argv[1];
    switch (squirrelEvent) {
        case "--squirrel-install":
        case "--squirrel-updated":
            // Optionally do things such as:
            // - Add your .exe to the PATH
            // - Write to the registry for things like file associations and
            //   explorer context menus

            // Install desktop and start menu shortcuts
            spawnUpdate(["--createShortcut", exeName]);

            setTimeout(app.exit, 1000);
            return true;

        case "--squirrel-uninstall":
            // Undo anything you did in the --squirrel-install and
            // --squirrel-updated handlers

            // Remove desktop and start menu shortcuts
            spawnUpdate(["--removeShortcut", exeName]);

            setTimeout(app.exit, 1000);
            return true;

        case "--squirrel-obsolete":
            // This is called on the outgoing version of your app before
            // we update to the new version - it's the opposite of
            // --squirrel-updated

            app.exit();
            return true;
    }
}