假设我需要建立一个整体解决方案(其中有多个项目)在命令行中,是有可能对特定项目运行一个干净的构建,为项目的其余运行增量构建?
谢谢.
我在python中学习ElementTree.一切似乎都很好,除非我尝试用前缀解析xml文件:
test.xml
:
<?xml version="1.0"?>
<abc:data>
<abc:country name="Liechtenstein" rank="1" year="2008">
</abc:country>
<abc:country name="Singapore" rank="4" year="2011">
</abc:country>
<abc:country name="Panama" rank="5" year="2011">
</abc:country>
</abc:data>
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当我尝试解析xml时:
import xml.etree.ElementTree as ET
tree = ET.parse('test.xml')
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我收到以下错误:
xml.etree.ElementTree.ParseError: unbound prefix: line 2, column 0
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我是否需要指定一些内容才能解析带有前缀的xml文件?
我正在制作一个非常简单的html页面,并且想知道如何为我的页面执行以下两项操作:
我写了附加的代码,但容器总是粘在左边,当我调整窗口大小时它不会改变大小.
<title>Demo</title>
<head>This is a demo</head>
<style>
#nav
{
background-color: red;
float: left;
width: 200px;
position:relative;
}
#detail
{
background-color: green;
float : right;
width: 800px;
position:relative;
}
div.testDetail
{
margin-top:10px;
margin-left:20px;
margin-right:20px;
margin-bottom:10px;
}
#container
{
width:1000px;
position:relative;
}
</style>
<hr>
<body>
<div id="container">
<div id="nav">
<ul>Tests</ul>
</div>
<div id="detail">
<div class="testDetail">
<image style="float:right;margin:5px;" src="test1.jpg" width="50px" height="50px"/>
<image style="float:right;margin:5px;" src="test2.jpg" width="50px" height="50px"/>
<image style="float:right;margin:5px;" src="test3.jpg" width="50px" height="50px"/>
<image style="float:right;margin:5px;" src="test4.jpg" width="50px" height="50px"/>
<h3>Title</h3>
<p>Testing</p>
</div>
<hr> …
Run Code Online (Sandbox Code Playgroud) 我试图从ajax请求访问驻留在S3中的html文件,我收到403错误.
我在线阅读AWS,如果我这样做,我需要设置AWS CORS规则来修复403错误.
但是,我已经尝试了两天而且没有任何运气.这是我的CORS配置:
<?xml version="1.0" encoding="UTF-8"?>
<CORSConfiguration xmlns="http://s3.amazonaws.com/doc/2006-03-01/">
<CORSRule>
<AllowedOrigin>*</AllowedOrigin>
<AllowedMethod>GET</AllowedMethod>
<MaxAgeSeconds>3000</MaxAgeSeconds>
<ExposeHeader>XMLHttpRequest</ExposeHeader>
<AllowedHeader>x-csrftoken</AllowedHeader>
</CORSRule>
</CORSConfiguration>
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我的HTTP请求如下:
Accept text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Encoding gzip, deflate
Accept-Language en-US,en;q=0.5
Access-Control-Request-He... x-csrftoken
Access-Control-Request-Me... GET
Connection keep-alive
Host xxxxxxxxx.cloudfront.net
Origin http://localhost:8000
User-Agent Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:18.0) Gecko/20100101 Firefox/18.0
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谁能帮我看看我错过了什么?
谢谢!
我正在尝试使用 go get 或 godep 为我的项目提取一些依赖项,但我在我的 mac 中看到了这一点
\n\nKALEI-M-V11L:election kalei$ dep ensure\nThe following issues were found in Gopkg.toml:\n\n \xe2\x9c\x97 unable to deduce repository and source type for "k8s.io/apiextensions-apiserver": unable to read metadata: unable to fetch raw metadata: failed HTTP request to URL "http://k8s.io/apiextensions-apiserver?go-get=1": Get https://k8s.io/apiextensions-apiserver?go-get=1: x509: certificate signed by unknown authority\n \xe2\x9c\x97 unable to deduce repository and source type for "k8s.io/apimachinery": unable to read metadata: unable to fetch raw metadata: failed HTTP request to URL "http://k8s.io/apimachinery?go-get=1": Get https://k8s.io/apimachinery?go-get=1: x509: …
Run Code Online (Sandbox Code Playgroud) 假设我有以下html:
<div id="test1">hi</div>
<a href="#" onclick="showDiv()">click here</a>
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和javascript:
function showDiv() {
$("#test1").hide();
}
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当我在jsfiddle上尝试它时,它返回:
$未定义
我错过了jsFiddle中的一些设置吗?
谢谢.
假设我有一个 monorepo 并且有几个单独的 golang 服务:
\nroot \n\xe2\x94\x94\xe2\x94\x80\xe2\x94\x80 services\n \xe2\x94\x9c\xe2\x94\x80\xe2\x94\x80 svc1\n \xe2\x94\x82\xc2\xa0\xc2\xa0 \xe2\x94\x9c\xe2\x94\x80\xe2\x94\x80 go.mod\n \xe2\x94\x82\xc2\xa0\xc2\xa0 \xe2\x94\x9c\xe2\x94\x80\xe2\x94\x80 go.sum\n \xe2\x94\x82\xc2\xa0\xc2\xa0 \xe2\x94\x94\xe2\x94\x80\xe2\x94\x80 main.go\n \xe2\x94\x94\xe2\x94\x80\xe2\x94\x80 svc2\n \xe2\x94\x9c\xe2\x94\x80\xe2\x94\x80 go.mod\n \xe2\x94\x9c\xe2\x94\x80\xe2\x94\x80 go.sum\n \xe2\x94\x94\xe2\x94\x80\xe2\x94\x80 main.go\n
Run Code Online (Sandbox Code Playgroud)\n而 svc2 将来将依赖于 svc1。另外,要求svc1和svc2可以单独释放。
\n有没有办法可以单独发布模块?go mod 文档仅假设只有 repo,因此它不提供这样的灵活性。
\n我正在编写登录视图,并希望为视图添加单元测试.我的观点如下:
def login(request):
if request.POST:
usrname = request.POST.get('username')
password = request.POST.get('password')
user = authenticate(username=usrname, password=password)
if user is not None:
auth_login(request, user)
return redirect('/core/home/')
else:
context = {'error_message': "Invalid username or password"}
return render(request, 'core/login.html', context)
else:
c = {}
c.update(csrf(request))
return render_to_response('core/login.html',c)
def home(request):
if request.user.is_authenticated():
context = {'user' : request.user}
return render(request, 'core/home.html', context)
else:
return render(request, 'core/login.html')
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我的单元测试看起来像这样:
class CoreViewTests(TestCase):
def setUp(self):
self.factory = RequestFactory()
def test_login_view_with_valid_user(self):
uf = UserFactory()
user = uf.make_user("ValidUser1", "12345", "user@abc.com")
self.assertEqual(user.username, "ValidUser1") …
Run Code Online (Sandbox Code Playgroud) 我正在尝试禁用云初始化网络配置。从云初始化文档中,我必须network-config={config: disabled}
在内核命令行条目中进行设置。
当我将其设置为/etc/default/grub
:
GRUB_CMDLINE_LINUX="network-config={config: disabled}"
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并运行update-grub
,但它给了我以下错误:
generating grub configuration file ...
Found linux image: /boot/vmlinuz-4.4.0-116-generic
Found initrd image: /boot/initrd.img-4.4.0-116-generic
Found linux image: /boot/vmlinuz-4.4.0-104-generic
Found initrd image: /boot/initrd.img-4.4.0-104-generic
Found linux image: /boot/vmlinuz-4.4.0-97-generic
Found initrd image: /boot/initrd.img-4.4.0-97-generic
error: syntax error.
error: Incorrect command.
error: syntax error.
error: Incorrect command.
error: syntax error.
Syntax error at line 128
Syntax errors are detected in generated GRUB config file.
Ensure that there are no errors in /etc/default/grub
and /etc/grub.d/* …
Run Code Online (Sandbox Code Playgroud) 我正在实现一个相机应用程序,当我查看预览(特别是前置摄像头)时,图像非常胖.看起来图像水平拉伸.我使用优化的相机尺寸跟踪sdk示例,但它没有帮助.如何调整相机设置以便像其他相机应用程序一样进行预览?
谢谢.
我的代码如下.
public class CameraActivity extends Activity implements SurfaceHolder.Callback, Camera.ShutterCallback, Camera.PictureCallback {
Camera m_camera;
SurfaceView m_surfaceView;
int m_numOfCamera;
int m_defaultCameraId;
int m_currentCamera;
int m_surfaceWidth;
int m_surfaceHeight;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_camera);
getActionBar().setDisplayHomeAsUpEnabled(true);
m_surfaceView = (SurfaceView)findViewById(R.id.cameraPreview);
m_surfaceView.getHolder().addCallback(this);
m_camera = Camera.open();
m_numOfCamera = Camera.getNumberOfCameras();
CameraInfo cameraInfo = new CameraInfo();
for (int i = 0; i < m_numOfCamera; ++i) {
Camera.getCameraInfo(i, cameraInfo);
if (cameraInfo.facing == CameraInfo.CAMERA_FACING_BACK) {
m_defaultCameraId = i;
m_currentCamera = m_defaultCameraId;
}
}
if (m_numOfCamera < 1) …
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