MEAN堆栈路由问题，角度路由不起作用

I have my routes.js

我有我的routes.js

module.exports = function(app) {
//I can't use this because angular routing does not work
/*app.get('*', function(req, res) {
    res.sendfile('./public/index.html');
});*/
    app.get('/submit', function(req,res){
        res.sendfile('./public/submit.html');
    }); 

    app.get('/schedule', function(req,res){
        res.sendfile('./public/schedule.html');
    }); 

    app.get('/requests', function(req,res){
        res.sendfile('./public/requests.html');
    });

    app.get('/tv_left', function(req,res){
        res.sendfile('./public/tv_left.html');
    });

    app.get('/tv_center', function(req,res){
        res.sendfile('./public/tv_center.html');
    });

    app.get('/tv_right', function(req,res){
        res.sendfile('./public/tv_right.html');
    });

    app.get('/', function(req, res){
        res.sendfile('./public/index.html');
    });
};
module.ex