运行test.py时出现此错误
C:\Python32>python.exe test.py
Traceback (most recent call last):
File "test.py", line 5, in <module>
import httplib
ImportError: No module named httplib
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怎么纠正呢?
test.py的代码块:
#!/usr/local/bin/python
import httplib
import sys
import re
from HTMLParser import HTMLParser
class miniHTMLParser( HTMLParser ):
viewedQueue = []
instQueue = []
def get_next_link( self ):
if self.instQueue == []:
return ''
else:
return self.instQueue.pop(0)
def gethtmlfile( self, site, page ):
try:
httpconn = httplib.HTTPConnection(site)
httpconn.request("GET", page)
resp = httpconn.getresponse()
resppage = resp.read()
except:
resppage = "" …Run Code Online (Sandbox Code Playgroud)
这是我的博客页面.我的一些帖子有C#代码块.为此,我使用<'pre'>标签.pre标签宽度为100%,并具有背景颜色.但是,文字远离它,如下图所示.我怎么能克服这个?我不想要底部滚动条.
有没有办法(dllimport)在Linux上的.NET Core中实现P/Invoke ?
示例:
我用.net框架编译了C++ MyLib.dll.
如果可以这样使用,或者不支持使用.net-core使用linux调用native win api?
[DllImport("MyLib.dll", CallingConvention = CallingConvention.StdCall)]
internal static extern long NativeMethod();
Run Code Online (Sandbox Code Playgroud) 我javascript在使用Facebook登录Api时在控制台中收到此错误.
The resource at "http://connect.facebook.net/en_US/sdk.js" was blocked because tracking protection is enabled.
// Load the SDK asynchronously
(function (d, s, id) {
var js, fjs = d.getElementsByTagName(s)[0];
if (d.getElementById(id))
return;
js = d.createElement(s);
js.id = id;
js.src = "//connect.facebook.net/en_US/sdk.js";
fjs.parentNode.insertBefore(js, fjs);
}(document, 'script', 'facebook-jssdk'));
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谷歌+插件也被阻止,现在我的Facebook和其他社交网络插件不适用于Firefox 42.0
我使用的是Firefox 42.0
我想将null值传递给 where 子句 bit类型变量以获取表中的所有行。而且当我通过时true或falsewhere 子句应该起作用才能做到这一点。
错误:
无法确定条件表达式的类型,因为 'bool?' 之间没有隐式转换 和“System.DBNull”
存储过程:
CREATE PROCEDURE [dbo].[SelectAllUIDs]
@enable bit
AS
BEGIN
SET NOCOUNT ON;
SELECT
[UID], [fEnable] [Enable],
[AddedDate] [Added Date]
FROM
[VehicleService].[dbo].[NFCCard]
WHERE
fEnable = @enable OR fEnable IS NOT NULL
ORDER BY
NfcKy
END
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C#代码:
public DataSet SelectUid(bool? status)
{
DataSet ds = new DataSet();
try
{
SqlCommand com = new SqlCommand("SelectAllUIDs", con);
com.CommandType = CommandType.StoredProcedure;
com.Parameters.Add(new SqlParameter("@enable", SqlDbType.Bit)
{ Value = status != …Run Code Online (Sandbox Code Playgroud) 我的C#应用程序使用DataSet和TableAdapters.它们是从VS2008 GUI工具生成的.
例:
右键单击项目 - >添加新项 - >数据集
此方法自动添加连接字符串app.config.
但这是连接字符串的硬连线方法.我想以一种简单的方式更改连接字符串.但是当我使用数据集时,连接字符串从应用程序属性获取.这种情况有什么解决方案吗?

这是我在Settings.Designer.cs文件中的连接字符串存储
namespace WindowsFormsApplication2.Properties {
[global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
[global::System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.VisualStudio.Editors.SettingsDesigner.SettingsSingleFileGenerator", "9.0.0.0")]
internal sealed partial class Settings : global::System.Configuration.ApplicationSettingsBase {
private static Settings defaultInstance = ((Settings)(global::System.Configuration.ApplicationSettingsBase.Synchronized(new Settings())));
public static Settings Default {
get {
return defaultInstance;
}
}
[global::System.Configuration.ApplicationScopedSettingAttribute()]
[global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
[global::System.Configuration.SpecialSettingAttribute(global::System.Configuration.SpecialSetting.ConnectionString)]
[global::System.Configuration.DefaultSettingValueAttribute("Data Source=SLCERT\\SQLEMK;Initial Catalog=TestDataBase;Integrated Security=True")]
public string TestDataBaseConnectionString {
get {
return ((string)(this["TestDataBaseConnectionString"])); // this is the connection string get from the dataset's
}
}
}
} …Run Code Online (Sandbox Code Playgroud) 我使用的.Net framwork 4.0 WinForm应用程序组件DataGridView,并设置DataSource有DataTable.然后有一个按钮来添加行插入DataGridView.
这样的代码.
gridTable = (DataTable)dgrMainGrid.DataSource;
DataRow dr = gridTable.NewRow();
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在将New Row添加到DataTable之前,我检查了是否有重复的行.为此,我使用了此LINQQuery.
//Item Code cannot duplicate
var results = from itmCode in gridTable.AsEnumerable()
where (itmCode.Field<string>("Item Code") == txtGrdItmLoc.Text)
select itmCode;
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在我如何检查数据表中是否有可用的重复行之后?
if(//doWhatever function here ){
//if there's duplicate row values
isNotDuplicate = false;
}
else{
isNotDuplicate=true;
}
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在进入下面的步骤之前,我需要得到是否有重复,并将其设置为isNotDuplicate变量或类似的东西来检查.所以我认为计算results行但是没有这样的函数可以计算'var results`,有没有可能做到这一点?
if (!isDuplicate)
{
dr["#"] = true;
dr["Item Code"] = …Run Code Online (Sandbox Code Playgroud) 我想发送这样的请求正文:
"email":{
"emailto":"foo@bar.com",
"emailfrom":"foo@bar.com",
"emailcc":"foo@bar.com",
"emailbcc":"foo@bar.com",
"emailsubject":"Subject",
"emailtag":"Information",
"emailtextbody":"---",
"attachments":[]
}
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val formBody = FormBody.Builder()
.add("email", "Your message")
.build()
val request = Request.Builder()
.url(url)
.post(formBody)
.addHeader("_Token","")
.addHeader("Content-Type","application/json")
.build()
Run Code Online (Sandbox Code Playgroud) 我想在.Net应用程序(C#,VB.NET)中隐藏重要的字符串变量值,如密码,用户名,ip和url等.在进程资源管理器中我们可以查看图像或内存中的字符串,我想隐藏图像字符串

I was imported SSL certificate using AWS Certificate manager and it will display In Use status as No and my Subdomain didn't work with https.
Below image displayed the status as I described. What was the reason for that?
Edit: I used Amazon EC2 with ubuntu box.
我已经完成了基本foreach循环,XmlNodeList如下所示.
XmlDocument doc = new XmlDocument();
doc.Load("books.xml");
XmlNodeList xnList = doc.SelectNodes("catalog/book");
foreach (XmlNode node in xnList)
{
Console.WriteLine(node["author"].InnerText);
}
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如何将此循环转换为Parallel.ForEach?
我试过这个代码.但它不起作用.
Parallel.ForEach(xnList, (XmlNode node) =>
{
Console.WriteLine(node["author"].InnerText);
});
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这是错误2
参数1:无法转换
System.Xml.XmlNodeList为System.Collections.Generic.IEnumerable<System.Xml.XmlNode>
我想设置两个不同大小的背景图像作为水平和垂直的活动.这样做,因为水平和垂直相同的图像设置它们得到拉伸.
例如:
