小编kch*_*hoi的帖子

我正在运行rails4,bootstrap 3,我在终端中收到以下错误消息.

Started GET "/assets/bootstrap.css.map" for 127.0.0.1 at 2014-08-24 23:41:36 -0700

ActionController::RoutingError (No route matches [GET] "/assets/bootstrap.css.map"):
  actionpack (4.1.4) lib/action_dispatch/middleware/debug_exceptions.rb:21:in `call'
  actionpack (4.1.4) lib/action_dispatch/middleware/show_exceptions.rb:30:in `call'


railties (4.1.4) lib/rails/rack/logger.rb:38:in `call_app'
  railties (4.1.4) lib/rails/rack/logger.rb:20:in `block in call'
  activesupport (4.1.4) lib/active_support/tagged_logging.rb:68:in `block in tagged'
  activesupport (4.1.4) lib/active_support/tagged_logging.rb:26:in `tagged'
  activesupport (4.1.4) lib/active_support/tagged_logging.rb:68:in `tagged'
  railties (4.1.4) lib/rails/rack/logger.rb:20:in `call'
  actionpack (4.1.4) lib/action_dispatch/middleware/request_id.rb:21:in `call'
  rack (1.5.2) lib/rack/methodoverride.rb:21:in `call'
  rack (1.5.2) lib/rack/runtime.rb:17:in `call'
  activesupport (4.1.4) lib/active_support/cache/strategy/local_cache_middleware.rb:26:in `call'
  rack (1.5.2) lib/rack/lock.rb:17:in `call'
  actionpack (4.1.4) lib/action_dispatch/middleware/static.rb:64:in `call'
  rack (1.5.2) lib/rack/sendfile.rb:112:in …

当我将鼠标悬停在图表上时,我一直在尝试添加一条显示工具提示的垂直线.但是我使用的是chart.js 2.6,而且1.x的语法似乎已经过时了.

我有以下代码适用于1.x.

var data = {
    labels: ["JAN", "FEB", "MAR", "APR", "MAY", "JUN", "JUL", "AUG", "SEP", 
"OCT", "NOV", "DEC"],
    datasets: [{
        data: [12, 3, 2, 1, 8, 8, 2, 2, 3, 5, 7, 1]
    }]
};

var ctx = document.getElementById("LineWithLine").getContext("2d");

Chart.types.Line.extend({
    name: "LineWithLine",
    draw: function () {
        Chart.types.Line.prototype.draw.apply(this, arguments);

        var point = this.datasets[0].points[this.options.lineAtIndex]
        var scale = this.scale

        // draw line
        this.chart.ctx.beginPath();
        this.chart.ctx.moveTo(point.x, scale.startPoint + 24);
        this.chart.ctx.strokeStyle = '#ff0000';
        this.chart.ctx.lineTo(point.x, scale.endPoint);
        this.chart.ctx.stroke();

        // write TODAY
        this.chart.ctx.textAlign = 'center';
        this.chart.ctx.fillText("TODAY", point.x, …

巴比伦方法的时间复杂度是多少？是log(n)其中n是我们想要找到平方根的数字吗？如果是这样,为什么会这样呢？

我有以下正则表达式

  regexp = %r{
     ((returned|undelivered)\smail|mail\sdelivery(\sfailed)?)
  }x

但是当我在上面运行rubocop时,它抱怨我需要"在正则表达式周围使用//".

我怎么能绕过它呢？

嗨，我想知道如何使用 beautifulsoup 来获取美国银行的营业时间。例如，如果网址为 (Shattuck_Ave_94704_BERKELEY_CA/bank_branch_locations/">http://locators.bankofamerica.com/locator/locator/2129_Shattuck _Ave_94704_BERKELEY_CA /bank_branch_locations/)，我如何才能仅提取小时数？以下是我的初步尝试，但它似乎什么也没返回。

page = urllib2.urlopen(url)
soup = BeautifulSoup(page.read())
hours = soup.find_all("div", class_="lobbyHours")
print hours