小编Big*_*337的帖子

我不确定为什么它告诉我这个问题是主观的.我看了整个互联网,无法找到答案.我知道谷歌浏览器扩展程序的内容脚本通常用javascript编写.

这和Ruby之间有什么联系？我知道Rails是Ruby的Web开发框架.我只是在学习所有这些东西.

在文档中非常清楚,您可以使用以下方式发送多个数据:

Intent shareIntent = new Intent();
shareIntent.setAction(Intent.ACTION_SEND_MULTIPLE);
shareIntent.putParcelableArrayListExtra(Intent.EXTRA_STREAM, imageUris);
shareIntent.setType("image/*");
startActivity(Intent.createChooser(shareIntent, "Share images to.."));

但似乎从这一行:shareIntent.setType("image/*");所有部分必须是相同的数据类型.如果我想发送一张图片(图片/ jpeg)和一个应该在标题(text/plain)中同时出现的标签？

如何在一个shareIntent中处理多种内容？是否可以将2个shareIntents发送到同一个活动？我该怎么处理？

这就是我所拥有的

im = cv2.imread('luffy.jpg')
gray = cv2.cvtColor(im,cv2.COLOR_BGR2GRAY)
ret,thresh = cv2.threshold(gray,127,255,0)

contours,h = cv2.findContours(thresh,cv2.RETR_TREE,cv2.CHAIN_APPROX_SIMPLE)

for cnt in contours:

    // return color inside of the contour here
    mask = np.zeros(cnt.shape[:2],np.uint8)
    mean = cv2.mean(cant,mask)   // I think this is promising but so far it returns arrays with just zeros. I think its because I used np.zeros above to find the mask....
    moment = cv2.moments(cnt)   //maybe this will help?

我找不到内置的openCV函数.我想也许你可以用这些时刻做到这一点？我怎么能实现这个？

编辑:使用Zaw Lin提出的解决方案我有这个输入图像:

这个输出图像:

这基本上就是我想要做的：

array = np.array()       #initialize the array. This is where the error code described below is thrown

for i in xrange(?):   #in the full version of this code, this loop goes through the length of a file. I won't know the length until I go through it. The point of the question is to see if you can build the array without knowing its exact size beforehand
    A = random.randint(0,10)
    B = random.randint(0,10)
    C = random.randint(0,10)
    D = random.randint(0,10)
    row …

现在我连续两个表格

<section>
        <%= render 'shared/micropost_form_purchase' %>
        <%= render 'shared/micropost_form_sale' %>
      </section>

然后是_micropost_form_purchase.html.erb

<%= form_for(@micropost) do |f| %>
  <%= render 'shared/error_messages', object: f.object %>
  <div class="field no-indent">
    <%= f.text_area :content, placeholder: "What's something else you want to buy?" %>
    <%= f.hidden_field_tag :type, :value => "purchase" %>
  </div>
  <%= f.submit "Post", class: "btn btn-large btn-primary" %>
<% end %>

对于_micropost_form_sale.html.erb我有

<%= form_for(@micropost, :html => { :id => "sale" }) do |f| %>
  <%= render 'shared/error_messages', object: f.object %>
  <div class="field no-indent">
    <%= …

为了获取cwac-camera commonsware jar,我在build.grade中有这个:

dependencies {
    compile 'com.commonsware.cwac:camera:0.6.+'
}

当我尝试编译时,它给了我这个:

Error:A problem occurred configuring project ':app'.
> Could not resolve all dependencies for configuration ':app:_debugCompile'.
   > Could not find com.commonsware.cwac:camera:0.6.12.
     Searched in the following locations:
         https://jcenter.bintray.com/com/commonsware/cwac/camera/0.6.12/camera-0.6.12.pom
         https://jcenter.bintray.com/com/commonsware/cwac/camera/0.6.12/camera-0.6.12.jar
         file:/home/alex/android/android-sdk-linux/extras/android/m2repository/com/commonsware/cwac/camera/0.6.12/camera-0.6.12.pom
         file:/home/alex/android/android-sdk-linux/extras/android/m2repository/com/commonsware/cwac/camera/0.6.12/camera-0.6.12.jar
         file:/home/alex/android/android-sdk-linux/extras/google/m2repository/com/commonsware/cwac/camera/0.6.12/camera-0.6.12.pom
         file:/home/alex/android/android-sdk-linux/extras/google/m2repository/com/commonsware/cwac/camera/0.6.12/camera-0.6.12.jar
     Required by:
         Cwac4:app:unspecified

所以它在jcenter中查找,并在一堆我的主目录文件中找不到任何东西.我认为它应该在github上看,因为我知道这里有发布版本:https://github.com/commonsguy/cwac-camera/releases,所以我怎么能告诉它呢？

另外,例如,当我在我的一个主目录中手动包含jar时,它编译时没有错误,但使用import com.commonsware.camera..(基本上任何东西)导致"无法解决符号commonsware"错误.我认为这意味着我不能手动将它放在某个地方,也许android工作室需要在官方存储库中看到它以允许导入它.它是否正确？

注意:我知道这个库将被重写.如果可能的话我还是想用它.

这是我的解析代码:

import yaml

def yaml_as_python(val):
    """Convert YAML to dict"""
    try:
        return yaml.load_all(val)
    except yaml.YAMLError as exc:
        return exc

with open('circuits-small.yaml','r') as input_file:
    results = yaml_as_python(input_file)
    print results
    for value in results:
         print value

以下是该文件的示例:

ingests:
  - timestamp: 1970-01-01T00:00:00.000Z
    id: SwitchBank_35496721
    attrs:
      Feeder: Line_928
      Switch.normalOpen: 'true'
      IdentifiedObject.description: SwitchBank
      IdentifiedObject.mRID: SwitchBank_35496721
      PowerSystemResource.circuit: '928'
      IdentifiedObject.name: SwitchBank_35496721
      IdentifiedObject.aliasName: SwitchBank_35496721
    loc: vector [43.05292, -76.126800000000003, 0.0]
    kind: SwitchBank
  - timestamp: 1970-01-01T00:00:00.000Z
    id: UndergroundDistributionLineSegment_34862802
    attrs:
      Feeder: Line_928
      status: de-energized
      IdentifiedObject.description: UndergroundDistributionLineSegment
      IdentifiedObject.mRID: UndergroundDistributionLineSegment_34862802
      PowerSystemResource.circuit: '928'
      IdentifiedObject.name: UndergroundDistributionLineSegment_34862802 …

我正在尝试使用以下说明在 Visual Studio 的 x64 终端上构建 boost：https : //www.boost.org/doc/libs/1_62_0/more/getting_started/windows.html#get-boost

我愿意：

boostrap

然后

.\b2 address-model=64

但它总是说：

C:\boost_1_70_0>.\b2 address-model=64
Performing configuration checks

    - default address-model    : 32-bit
    - default architecture     : x86

Building the Boost C++ Libraries.

...

然后继续构建所有内容的 32 位版本。我知道这一点，因为当我尝试对 CMake 之类的东西使用 boost 时，它抱怨它的 32 位：

C:\src\SimpleAmqpClient\simpleamqpclient-build>cmake -DBOOST_ROOT=C:\boost_1_70_0 -DBOOST_LIBRARYDIR=C:\boost_1_70_0\stage\lib ..
-- Found Boost 1.70.0 at C:/Program Files/boost/lib/cmake/Boost-1.70.0
--   Requested configuration: QUIET REQUIRED COMPONENTS chrono;system
-- Found boost_headers 1.70.0 at C:/Program Files/boost/lib/cmake/boost_headers-1.70.0
-- Found boost_chrono 1.70.0 at C:/Program Files/boost/lib/cmake/boost_chrono-1.70.0
-- No …

我想我理解 NQueens 算法的重点 - 您检查每一行是否存在可用空间，如果它们存在，则在那里放置一个皇后，然后递归地将算法调用到下一行。这是我的算法（N 大小为 3）

from typing import List
import pdb
class Solution:
    def solveNQueens(self, n: int) -> List[List[str]]:
        self.solutions = 0 
        self.attack_zone = [[0]*n for i in range(n)]
        self.size = n
        self.backtrack_nqueens(0,0) #start on row 0 
        return self.solutions
    def backtrack_nqueens(self,row,iteration):
        #starting at row
        for col in range(self.size):
            if self.is_not_under_attack(row,col):
                print("on iteration",iteration,row,col,"was a safe place for some reason")
                #adds queen to this row
                self.place_or_remove_queen(row,col,True)
                if row + 1 == self.size:
                    ## THIS SHOULD NEVER HAPPEN 
                    self.solutions += 1 …

在我的python/pyramid应用程序中,我让用户生成存储在亚马逊s3存储桶中的html页面.我希望每个页面都有一个单独的路径,如www.domain.com/2cxj4kl.我已经想出如何生成随机字符串以放入网址,但我更关心重复.如何根据现有字符串列表检查每个字符串,以便不覆盖任何内容？我可以将每个字符串放入字典或数组中,并在每次创建新字符串时检查不断增长的数组/字典吗？继续增长这样一个对象是否存在问题,并且它会以某种方式永久存在于应用程序内存中吗？我怎样才能做到这一点？